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added rtl8812au drivers #452
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kimocoder
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Aug 22, 2017
- added rtl8812au drivers to staging
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lkl tools: lklfuse: add read-only option in help
rcu_read_lock is needed to protect access to psock inside sock_map_unref when tearing down the map. However, we can't afford to sleep in lock_sock while in RCU read-side critical section. Grab the RCU lock only after we have locked the socket. This fixes RCU warnings triggerable on a VM with 1 vCPU when free'ing a sockmap/sockhash that contains at least one socket: | ============================= | WARNING: suspicious RCU usage | 5.5.0-04005-g8fc91b972b73 torvalds#450 Not tainted | ----------------------------- | include/linux/rcupdate.h:272 Illegal context switch in RCU read-side critical section! | | other info that might help us debug this: | | | rcu_scheduler_active = 2, debug_locks = 1 | 4 locks held by kworker/0:1/62: | #0: ffff88813b019748 ((wq_completion)events){+.+.}, at: process_one_work+0x1d7/0x5e0 | #1: ffffc900000abe50 ((work_completion)(&map->work)){+.+.}, at: process_one_work+0x1d7/0x5e0 | #2: ffffffff82065d20 (rcu_read_lock){....}, at: sock_map_free+0x5/0x170 | #3: ffff8881368c5df8 (&stab->lock){+...}, at: sock_map_free+0x64/0x170 | | stack backtrace: | CPU: 0 PID: 62 Comm: kworker/0:1 Not tainted 5.5.0-04005-g8fc91b972b73 torvalds#450 | Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS ?-20190727_073836-buildvm-ppc64le-16.ppc.fedoraproject.org-3.fc31 04/01/2014 | Workqueue: events bpf_map_free_deferred | Call Trace: | dump_stack+0x71/0xa0 | ___might_sleep+0x105/0x190 | lock_sock_nested+0x28/0x90 | sock_map_free+0x95/0x170 | bpf_map_free_deferred+0x58/0x80 | process_one_work+0x260/0x5e0 | worker_thread+0x4d/0x3e0 | kthread+0x108/0x140 | ? process_one_work+0x5e0/0x5e0 | ? kthread_park+0x90/0x90 | ret_from_fork+0x3a/0x50 | ============================= | WARNING: suspicious RCU usage | 5.5.0-04005-g8fc91b972b73-dirty torvalds#452 Not tainted | ----------------------------- | include/linux/rcupdate.h:272 Illegal context switch in RCU read-side critical section! | | other info that might help us debug this: | | | rcu_scheduler_active = 2, debug_locks = 1 | 4 locks held by kworker/0:1/62: | #0: ffff88813b019748 ((wq_completion)events){+.+.}, at: process_one_work+0x1d7/0x5e0 | #1: ffffc900000abe50 ((work_completion)(&map->work)){+.+.}, at: process_one_work+0x1d7/0x5e0 | #2: ffffffff82065d20 (rcu_read_lock){....}, at: sock_hash_free+0x5/0x1d0 | #3: ffff888139966e00 (&htab->buckets[i].lock){+...}, at: sock_hash_free+0x92/0x1d0 | | stack backtrace: | CPU: 0 PID: 62 Comm: kworker/0:1 Not tainted 5.5.0-04005-g8fc91b972b73-dirty torvalds#452 | Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS ?-20190727_073836-buildvm-ppc64le-16.ppc.fedoraproject.org-3.fc31 04/01/2014 | Workqueue: events bpf_map_free_deferred | Call Trace: | dump_stack+0x71/0xa0 | ___might_sleep+0x105/0x190 | lock_sock_nested+0x28/0x90 | sock_hash_free+0xec/0x1d0 | bpf_map_free_deferred+0x58/0x80 | process_one_work+0x260/0x5e0 | worker_thread+0x4d/0x3e0 | kthread+0x108/0x140 | ? process_one_work+0x5e0/0x5e0 | ? kthread_park+0x90/0x90 | ret_from_fork+0x3a/0x50 Fixes: 7e81a35 ("bpf: Sockmap, ensure sock lock held during tear down") Signed-off-by: Jakub Sitnicki <jakub@cloudflare.com>
rcu_read_lock is needed to protect access to psock inside sock_map_unref when tearing down the map. However, we can't afford to sleep in lock_sock while in RCU read-side critical section. Grab the RCU lock only after we have locked the socket. This fixes RCU warnings triggerable on a VM with 1 vCPU when free'ing a sockmap/sockhash that contains at least one socket: | ============================= | WARNING: suspicious RCU usage | 5.5.0-04005-g8fc91b972b73 #450 Not tainted | ----------------------------- | include/linux/rcupdate.h:272 Illegal context switch in RCU read-side critical section! | | other info that might help us debug this: | | | rcu_scheduler_active = 2, debug_locks = 1 | 4 locks held by kworker/0:1/62: | #0: ffff88813b019748 ((wq_completion)events){+.+.}, at: process_one_work+0x1d7/0x5e0 | #1: ffffc900000abe50 ((work_completion)(&map->work)){+.+.}, at: process_one_work+0x1d7/0x5e0 | #2: ffffffff82065d20 (rcu_read_lock){....}, at: sock_map_free+0x5/0x170 | #3: ffff8881368c5df8 (&stab->lock){+...}, at: sock_map_free+0x64/0x170 | | stack backtrace: | CPU: 0 PID: 62 Comm: kworker/0:1 Not tainted 5.5.0-04005-g8fc91b972b73 #450 | Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS ?-20190727_073836-buildvm-ppc64le-16.ppc.fedoraproject.org-3.fc31 04/01/2014 | Workqueue: events bpf_map_free_deferred | Call Trace: | dump_stack+0x71/0xa0 | ___might_sleep+0x105/0x190 | lock_sock_nested+0x28/0x90 | sock_map_free+0x95/0x170 | bpf_map_free_deferred+0x58/0x80 | process_one_work+0x260/0x5e0 | worker_thread+0x4d/0x3e0 | kthread+0x108/0x140 | ? process_one_work+0x5e0/0x5e0 | ? kthread_park+0x90/0x90 | ret_from_fork+0x3a/0x50 | ============================= | WARNING: suspicious RCU usage | 5.5.0-04005-g8fc91b972b73-dirty #452 Not tainted | ----------------------------- | include/linux/rcupdate.h:272 Illegal context switch in RCU read-side critical section! | | other info that might help us debug this: | | | rcu_scheduler_active = 2, debug_locks = 1 | 4 locks held by kworker/0:1/62: | #0: ffff88813b019748 ((wq_completion)events){+.+.}, at: process_one_work+0x1d7/0x5e0 | #1: ffffc900000abe50 ((work_completion)(&map->work)){+.+.}, at: process_one_work+0x1d7/0x5e0 | #2: ffffffff82065d20 (rcu_read_lock){....}, at: sock_hash_free+0x5/0x1d0 | #3: ffff888139966e00 (&htab->buckets[i].lock){+...}, at: sock_hash_free+0x92/0x1d0 | | stack backtrace: | CPU: 0 PID: 62 Comm: kworker/0:1 Not tainted 5.5.0-04005-g8fc91b972b73-dirty #452 | Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS ?-20190727_073836-buildvm-ppc64le-16.ppc.fedoraproject.org-3.fc31 04/01/2014 | Workqueue: events bpf_map_free_deferred | Call Trace: | dump_stack+0x71/0xa0 | ___might_sleep+0x105/0x190 | lock_sock_nested+0x28/0x90 | sock_hash_free+0xec/0x1d0 | bpf_map_free_deferred+0x58/0x80 | process_one_work+0x260/0x5e0 | worker_thread+0x4d/0x3e0 | kthread+0x108/0x140 | ? process_one_work+0x5e0/0x5e0 | ? kthread_park+0x90/0x90 | ret_from_fork+0x3a/0x50 Fixes: 7e81a35 ("bpf: Sockmap, ensure sock lock held during tear down") Signed-off-by: Jakub Sitnicki <jakub@cloudflare.com> Signed-off-by: Daniel Borkmann <daniel@iogearbox.net> Acked-by: John Fastabend <john.fastabend@gmail.com> Link: https://lore.kernel.org/bpf/20200206111652.694507-2-jakub@cloudflare.com
commit db6a501 upstream. rcu_read_lock is needed to protect access to psock inside sock_map_unref when tearing down the map. However, we can't afford to sleep in lock_sock while in RCU read-side critical section. Grab the RCU lock only after we have locked the socket. This fixes RCU warnings triggerable on a VM with 1 vCPU when free'ing a sockmap/sockhash that contains at least one socket: | ============================= | WARNING: suspicious RCU usage | 5.5.0-04005-g8fc91b972b73 torvalds#450 Not tainted | ----------------------------- | include/linux/rcupdate.h:272 Illegal context switch in RCU read-side critical section! | | other info that might help us debug this: | | | rcu_scheduler_active = 2, debug_locks = 1 | 4 locks held by kworker/0:1/62: | #0: ffff88813b019748 ((wq_completion)events){+.+.}, at: process_one_work+0x1d7/0x5e0 | #1: ffffc900000abe50 ((work_completion)(&map->work)){+.+.}, at: process_one_work+0x1d7/0x5e0 | #2: ffffffff82065d20 (rcu_read_lock){....}, at: sock_map_free+0x5/0x170 | #3: ffff8881368c5df8 (&stab->lock){+...}, at: sock_map_free+0x64/0x170 | | stack backtrace: | CPU: 0 PID: 62 Comm: kworker/0:1 Not tainted 5.5.0-04005-g8fc91b972b73 torvalds#450 | Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS ?-20190727_073836-buildvm-ppc64le-16.ppc.fedoraproject.org-3.fc31 04/01/2014 | Workqueue: events bpf_map_free_deferred | Call Trace: | dump_stack+0x71/0xa0 | ___might_sleep+0x105/0x190 | lock_sock_nested+0x28/0x90 | sock_map_free+0x95/0x170 | bpf_map_free_deferred+0x58/0x80 | process_one_work+0x260/0x5e0 | worker_thread+0x4d/0x3e0 | kthread+0x108/0x140 | ? process_one_work+0x5e0/0x5e0 | ? kthread_park+0x90/0x90 | ret_from_fork+0x3a/0x50 | ============================= | WARNING: suspicious RCU usage | 5.5.0-04005-g8fc91b972b73-dirty torvalds#452 Not tainted | ----------------------------- | include/linux/rcupdate.h:272 Illegal context switch in RCU read-side critical section! | | other info that might help us debug this: | | | rcu_scheduler_active = 2, debug_locks = 1 | 4 locks held by kworker/0:1/62: | #0: ffff88813b019748 ((wq_completion)events){+.+.}, at: process_one_work+0x1d7/0x5e0 | #1: ffffc900000abe50 ((work_completion)(&map->work)){+.+.}, at: process_one_work+0x1d7/0x5e0 | #2: ffffffff82065d20 (rcu_read_lock){....}, at: sock_hash_free+0x5/0x1d0 | #3: ffff888139966e00 (&htab->buckets[i].lock){+...}, at: sock_hash_free+0x92/0x1d0 | | stack backtrace: | CPU: 0 PID: 62 Comm: kworker/0:1 Not tainted 5.5.0-04005-g8fc91b972b73-dirty torvalds#452 | Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS ?-20190727_073836-buildvm-ppc64le-16.ppc.fedoraproject.org-3.fc31 04/01/2014 | Workqueue: events bpf_map_free_deferred | Call Trace: | dump_stack+0x71/0xa0 | ___might_sleep+0x105/0x190 | lock_sock_nested+0x28/0x90 | sock_hash_free+0xec/0x1d0 | bpf_map_free_deferred+0x58/0x80 | process_one_work+0x260/0x5e0 | worker_thread+0x4d/0x3e0 | kthread+0x108/0x140 | ? process_one_work+0x5e0/0x5e0 | ? kthread_park+0x90/0x90 | ret_from_fork+0x3a/0x50 Fixes: 7e81a35 ("bpf: Sockmap, ensure sock lock held during tear down") Signed-off-by: Jakub Sitnicki <jakub@cloudflare.com> Signed-off-by: Daniel Borkmann <daniel@iogearbox.net> Acked-by: John Fastabend <john.fastabend@gmail.com> Link: https://lore.kernel.org/bpf/20200206111652.694507-2-jakub@cloudflare.com Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
commit db6a501 upstream. rcu_read_lock is needed to protect access to psock inside sock_map_unref when tearing down the map. However, we can't afford to sleep in lock_sock while in RCU read-side critical section. Grab the RCU lock only after we have locked the socket. This fixes RCU warnings triggerable on a VM with 1 vCPU when free'ing a sockmap/sockhash that contains at least one socket: | ============================= | WARNING: suspicious RCU usage | 5.5.0-04005-g8fc91b972b73 torvalds#450 Not tainted | ----------------------------- | include/linux/rcupdate.h:272 Illegal context switch in RCU read-side critical section! | | other info that might help us debug this: | | | rcu_scheduler_active = 2, debug_locks = 1 | 4 locks held by kworker/0:1/62: | #0: ffff88813b019748 ((wq_completion)events){+.+.}, at: process_one_work+0x1d7/0x5e0 | #1: ffffc900000abe50 ((work_completion)(&map->work)){+.+.}, at: process_one_work+0x1d7/0x5e0 | #2: ffffffff82065d20 (rcu_read_lock){....}, at: sock_map_free+0x5/0x170 | #3: ffff8881368c5df8 (&stab->lock){+...}, at: sock_map_free+0x64/0x170 | | stack backtrace: | CPU: 0 PID: 62 Comm: kworker/0:1 Not tainted 5.5.0-04005-g8fc91b972b73 torvalds#450 | Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS ?-20190727_073836-buildvm-ppc64le-16.ppc.fedoraproject.org-3.fc31 04/01/2014 | Workqueue: events bpf_map_free_deferred | Call Trace: | dump_stack+0x71/0xa0 | ___might_sleep+0x105/0x190 | lock_sock_nested+0x28/0x90 | sock_map_free+0x95/0x170 | bpf_map_free_deferred+0x58/0x80 | process_one_work+0x260/0x5e0 | worker_thread+0x4d/0x3e0 | kthread+0x108/0x140 | ? process_one_work+0x5e0/0x5e0 | ? kthread_park+0x90/0x90 | ret_from_fork+0x3a/0x50 | ============================= | WARNING: suspicious RCU usage | 5.5.0-04005-g8fc91b972b73-dirty torvalds#452 Not tainted | ----------------------------- | include/linux/rcupdate.h:272 Illegal context switch in RCU read-side critical section! | | other info that might help us debug this: | | | rcu_scheduler_active = 2, debug_locks = 1 | 4 locks held by kworker/0:1/62: | #0: ffff88813b019748 ((wq_completion)events){+.+.}, at: process_one_work+0x1d7/0x5e0 | #1: ffffc900000abe50 ((work_completion)(&map->work)){+.+.}, at: process_one_work+0x1d7/0x5e0 | #2: ffffffff82065d20 (rcu_read_lock){....}, at: sock_hash_free+0x5/0x1d0 | #3: ffff888139966e00 (&htab->buckets[i].lock){+...}, at: sock_hash_free+0x92/0x1d0 | | stack backtrace: | CPU: 0 PID: 62 Comm: kworker/0:1 Not tainted 5.5.0-04005-g8fc91b972b73-dirty torvalds#452 | Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS ?-20190727_073836-buildvm-ppc64le-16.ppc.fedoraproject.org-3.fc31 04/01/2014 | Workqueue: events bpf_map_free_deferred | Call Trace: | dump_stack+0x71/0xa0 | ___might_sleep+0x105/0x190 | lock_sock_nested+0x28/0x90 | sock_hash_free+0xec/0x1d0 | bpf_map_free_deferred+0x58/0x80 | process_one_work+0x260/0x5e0 | worker_thread+0x4d/0x3e0 | kthread+0x108/0x140 | ? process_one_work+0x5e0/0x5e0 | ? kthread_park+0x90/0x90 | ret_from_fork+0x3a/0x50 Fixes: 7e81a35 ("bpf: Sockmap, ensure sock lock held during tear down") Signed-off-by: Jakub Sitnicki <jakub@cloudflare.com> Signed-off-by: Daniel Borkmann <daniel@iogearbox.net> Acked-by: John Fastabend <john.fastabend@gmail.com> Link: https://lore.kernel.org/bpf/20200206111652.694507-2-jakub@cloudflare.com Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
WARNING: Possible unwrapped commit description (prefer a maximum 75 chars per line) torvalds#12: Save 2 atomic ops, 1 allocation, 1 free per open/read/close sequence for such WARNING: braces {} are not necessary for single statement blocks torvalds#163: FILE: fs/proc/generic.c:536: + if (pde->proc_ops->proc_flags & PROC_ENTRY_PERMANENT) { + pde->flags |= PROC_ENTRY_PERMANENT; + } WARNING: line over 80 characters torvalds#203: FILE: fs/proc/generic.c:676: + WARN(1, "removing permanent /proc entry '%s'", de->name); WARNING: braces {} are not necessary for single statement blocks torvalds#207: FILE: fs/proc/generic.c:680: + if (S_ISDIR(de->mode)) { + parent->nlink--; + } WARNING: line over 80 characters torvalds#244: FILE: fs/proc/inode.c:198: +static loff_t pde_lseek(struct proc_dir_entry *pde, struct file *file, loff_t offset, int whence) WARNING: line over 80 characters torvalds#274: FILE: fs/proc/inode.c:222: +static ssize_t pde_read(struct proc_dir_entry *pde, struct file *file, char __user *buf, size_t count, loff_t *ppos) WARNING: line over 80 characters torvalds#303: FILE: fs/proc/inode.c:246: +static ssize_t pde_write(struct proc_dir_entry *pde, struct file *file, const char __user *buf, size_t count, loff_t *ppos) WARNING: line over 80 characters torvalds#332: FILE: fs/proc/inode.c:270: +static __poll_t pde_poll(struct proc_dir_entry *pde, struct file *file, struct poll_table_struct *pts) WARNING: line over 80 characters torvalds#361: FILE: fs/proc/inode.c:294: +static long pde_ioctl(struct proc_dir_entry *pde, struct file *file, unsigned int cmd, unsigned long arg) WARNING: line over 80 characters torvalds#391: FILE: fs/proc/inode.c:319: +static long pde_compat_ioctl(struct proc_dir_entry *pde, struct file *file, unsigned int cmd, unsigned long arg) WARNING: line over 80 characters torvalds#421: FILE: fs/proc/inode.c:343: +static int pde_mmap(struct proc_dir_entry *pde, struct file *file, struct vm_area_struct *vma) WARNING: line over 80 characters torvalds#452: FILE: fs/proc/inode.c:368: +pde_get_unmapped_area(struct proc_dir_entry *pde, struct file *file, unsigned long orig_addr, WARNING: line over 80 characters torvalds#489: FILE: fs/proc/inode.c:393: + return pde_get_unmapped_area(pde, file, orig_addr, len, pgoff, flags); WARNING: line over 80 characters torvalds#491: FILE: fs/proc/inode.c:395: + rv = pde_get_unmapped_area(pde, file, orig_addr, len, pgoff, flags); WARNING: braces {} are not necessary for single statement blocks torvalds#518: FILE: fs/proc/inode.c:470: + if (release) { + return release(inode, file); + } total: 0 errors, 15 warnings, 462 lines checked NOTE: For some of the reported defects, checkpatch may be able to mechanically convert to the typical style using --fix or --fix-inplace. ./patches/proc-faster-open-read-close-with-permanent-files.patch has style problems, please review. NOTE: If any of the errors are false positives, please report them to the maintainer, see CHECKPATCH in MAINTAINERS. Please run checkpatch prior to sending patches Cc: Alexey Dobriyan <adobriyan@gmail.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Stephen Rothwell <sfr@canb.auug.org.au>
WARNING: Possible unwrapped commit description (prefer a maximum 75 chars per line) torvalds#12: Save 2 atomic ops, 1 allocation, 1 free per open/read/close sequence for such WARNING: braces {} are not necessary for single statement blocks torvalds#163: FILE: fs/proc/generic.c:536: + if (pde->proc_ops->proc_flags & PROC_ENTRY_PERMANENT) { + pde->flags |= PROC_ENTRY_PERMANENT; + } WARNING: line over 80 characters torvalds#203: FILE: fs/proc/generic.c:676: + WARN(1, "removing permanent /proc entry '%s'", de->name); WARNING: braces {} are not necessary for single statement blocks torvalds#207: FILE: fs/proc/generic.c:680: + if (S_ISDIR(de->mode)) { + parent->nlink--; + } WARNING: line over 80 characters torvalds#244: FILE: fs/proc/inode.c:198: +static loff_t pde_lseek(struct proc_dir_entry *pde, struct file *file, loff_t offset, int whence) WARNING: line over 80 characters torvalds#274: FILE: fs/proc/inode.c:222: +static ssize_t pde_read(struct proc_dir_entry *pde, struct file *file, char __user *buf, size_t count, loff_t *ppos) WARNING: line over 80 characters torvalds#303: FILE: fs/proc/inode.c:246: +static ssize_t pde_write(struct proc_dir_entry *pde, struct file *file, const char __user *buf, size_t count, loff_t *ppos) WARNING: line over 80 characters torvalds#332: FILE: fs/proc/inode.c:270: +static __poll_t pde_poll(struct proc_dir_entry *pde, struct file *file, struct poll_table_struct *pts) WARNING: line over 80 characters torvalds#361: FILE: fs/proc/inode.c:294: +static long pde_ioctl(struct proc_dir_entry *pde, struct file *file, unsigned int cmd, unsigned long arg) WARNING: line over 80 characters torvalds#391: FILE: fs/proc/inode.c:319: +static long pde_compat_ioctl(struct proc_dir_entry *pde, struct file *file, unsigned int cmd, unsigned long arg) WARNING: line over 80 characters torvalds#421: FILE: fs/proc/inode.c:343: +static int pde_mmap(struct proc_dir_entry *pde, struct file *file, struct vm_area_struct *vma) WARNING: line over 80 characters torvalds#452: FILE: fs/proc/inode.c:368: +pde_get_unmapped_area(struct proc_dir_entry *pde, struct file *file, unsigned long orig_addr, WARNING: line over 80 characters torvalds#489: FILE: fs/proc/inode.c:393: + return pde_get_unmapped_area(pde, file, orig_addr, len, pgoff, flags); WARNING: line over 80 characters torvalds#491: FILE: fs/proc/inode.c:395: + rv = pde_get_unmapped_area(pde, file, orig_addr, len, pgoff, flags); WARNING: braces {} are not necessary for single statement blocks torvalds#518: FILE: fs/proc/inode.c:470: + if (release) { + return release(inode, file); + } total: 0 errors, 15 warnings, 462 lines checked NOTE: For some of the reported defects, checkpatch may be able to mechanically convert to the typical style using --fix or --fix-inplace. ./patches/proc-faster-open-read-close-with-permanent-files.patch has style problems, please review. NOTE: If any of the errors are false positives, please report them to the maintainer, see CHECKPATCH in MAINTAINERS. Please run checkpatch prior to sending patches Cc: Alexey Dobriyan <adobriyan@gmail.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Stephen Rothwell <sfr@canb.auug.org.au>
WARNING: Possible unwrapped commit description (prefer a maximum 75 chars per line) torvalds#12: Save 2 atomic ops, 1 allocation, 1 free per open/read/close sequence for such WARNING: braces {} are not necessary for single statement blocks torvalds#163: FILE: fs/proc/generic.c:536: + if (pde->proc_ops->proc_flags & PROC_ENTRY_PERMANENT) { + pde->flags |= PROC_ENTRY_PERMANENT; + } WARNING: line over 80 characters torvalds#203: FILE: fs/proc/generic.c:676: + WARN(1, "removing permanent /proc entry '%s'", de->name); WARNING: braces {} are not necessary for single statement blocks torvalds#207: FILE: fs/proc/generic.c:680: + if (S_ISDIR(de->mode)) { + parent->nlink--; + } WARNING: line over 80 characters torvalds#244: FILE: fs/proc/inode.c:198: +static loff_t pde_lseek(struct proc_dir_entry *pde, struct file *file, loff_t offset, int whence) WARNING: line over 80 characters torvalds#274: FILE: fs/proc/inode.c:222: +static ssize_t pde_read(struct proc_dir_entry *pde, struct file *file, char __user *buf, size_t count, loff_t *ppos) WARNING: line over 80 characters torvalds#303: FILE: fs/proc/inode.c:246: +static ssize_t pde_write(struct proc_dir_entry *pde, struct file *file, const char __user *buf, size_t count, loff_t *ppos) WARNING: line over 80 characters torvalds#332: FILE: fs/proc/inode.c:270: +static __poll_t pde_poll(struct proc_dir_entry *pde, struct file *file, struct poll_table_struct *pts) WARNING: line over 80 characters torvalds#361: FILE: fs/proc/inode.c:294: +static long pde_ioctl(struct proc_dir_entry *pde, struct file *file, unsigned int cmd, unsigned long arg) WARNING: line over 80 characters torvalds#391: FILE: fs/proc/inode.c:319: +static long pde_compat_ioctl(struct proc_dir_entry *pde, struct file *file, unsigned int cmd, unsigned long arg) WARNING: line over 80 characters torvalds#421: FILE: fs/proc/inode.c:343: +static int pde_mmap(struct proc_dir_entry *pde, struct file *file, struct vm_area_struct *vma) WARNING: line over 80 characters torvalds#452: FILE: fs/proc/inode.c:368: +pde_get_unmapped_area(struct proc_dir_entry *pde, struct file *file, unsigned long orig_addr, WARNING: line over 80 characters torvalds#489: FILE: fs/proc/inode.c:393: + return pde_get_unmapped_area(pde, file, orig_addr, len, pgoff, flags); WARNING: line over 80 characters torvalds#491: FILE: fs/proc/inode.c:395: + rv = pde_get_unmapped_area(pde, file, orig_addr, len, pgoff, flags); WARNING: braces {} are not necessary for single statement blocks torvalds#518: FILE: fs/proc/inode.c:470: + if (release) { + return release(inode, file); + } total: 0 errors, 15 warnings, 462 lines checked NOTE: For some of the reported defects, checkpatch may be able to mechanically convert to the typical style using --fix or --fix-inplace. ./patches/proc-faster-open-read-close-with-permanent-files.patch has style problems, please review. NOTE: If any of the errors are false positives, please report them to the maintainer, see CHECKPATCH in MAINTAINERS. Please run checkpatch prior to sending patches Cc: Alexey Dobriyan <adobriyan@gmail.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Stephen Rothwell <sfr@canb.auug.org.au>
WARNING: Possible unwrapped commit description (prefer a maximum 75 chars per line) torvalds#12: Save 2 atomic ops, 1 allocation, 1 free per open/read/close sequence for such WARNING: braces {} are not necessary for single statement blocks torvalds#163: FILE: fs/proc/generic.c:536: + if (pde->proc_ops->proc_flags & PROC_ENTRY_PERMANENT) { + pde->flags |= PROC_ENTRY_PERMANENT; + } WARNING: line over 80 characters torvalds#203: FILE: fs/proc/generic.c:676: + WARN(1, "removing permanent /proc entry '%s'", de->name); WARNING: braces {} are not necessary for single statement blocks torvalds#207: FILE: fs/proc/generic.c:680: + if (S_ISDIR(de->mode)) { + parent->nlink--; + } WARNING: line over 80 characters torvalds#244: FILE: fs/proc/inode.c:198: +static loff_t pde_lseek(struct proc_dir_entry *pde, struct file *file, loff_t offset, int whence) WARNING: line over 80 characters torvalds#274: FILE: fs/proc/inode.c:222: +static ssize_t pde_read(struct proc_dir_entry *pde, struct file *file, char __user *buf, size_t count, loff_t *ppos) WARNING: line over 80 characters torvalds#303: FILE: fs/proc/inode.c:246: +static ssize_t pde_write(struct proc_dir_entry *pde, struct file *file, const char __user *buf, size_t count, loff_t *ppos) WARNING: line over 80 characters torvalds#332: FILE: fs/proc/inode.c:270: +static __poll_t pde_poll(struct proc_dir_entry *pde, struct file *file, struct poll_table_struct *pts) WARNING: line over 80 characters torvalds#361: FILE: fs/proc/inode.c:294: +static long pde_ioctl(struct proc_dir_entry *pde, struct file *file, unsigned int cmd, unsigned long arg) WARNING: line over 80 characters torvalds#391: FILE: fs/proc/inode.c:319: +static long pde_compat_ioctl(struct proc_dir_entry *pde, struct file *file, unsigned int cmd, unsigned long arg) WARNING: line over 80 characters torvalds#421: FILE: fs/proc/inode.c:343: +static int pde_mmap(struct proc_dir_entry *pde, struct file *file, struct vm_area_struct *vma) WARNING: line over 80 characters torvalds#452: FILE: fs/proc/inode.c:368: +pde_get_unmapped_area(struct proc_dir_entry *pde, struct file *file, unsigned long orig_addr, WARNING: line over 80 characters torvalds#489: FILE: fs/proc/inode.c:393: + return pde_get_unmapped_area(pde, file, orig_addr, len, pgoff, flags); WARNING: line over 80 characters torvalds#491: FILE: fs/proc/inode.c:395: + rv = pde_get_unmapped_area(pde, file, orig_addr, len, pgoff, flags); WARNING: braces {} are not necessary for single statement blocks torvalds#518: FILE: fs/proc/inode.c:470: + if (release) { + return release(inode, file); + } total: 0 errors, 15 warnings, 462 lines checked NOTE: For some of the reported defects, checkpatch may be able to mechanically convert to the typical style using --fix or --fix-inplace. ./patches/proc-faster-open-read-close-with-permanent-files.patch has style problems, please review. NOTE: If any of the errors are false positives, please report them to the maintainer, see CHECKPATCH in MAINTAINERS. Please run checkpatch prior to sending patches Cc: Alexey Dobriyan <adobriyan@gmail.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Stephen Rothwell <sfr@canb.auug.org.au>
WARNING: Possible unwrapped commit description (prefer a maximum 75 chars per line) torvalds#12: Save 2 atomic ops, 1 allocation, 1 free per open/read/close sequence for such WARNING: braces {} are not necessary for single statement blocks torvalds#163: FILE: fs/proc/generic.c:536: + if (pde->proc_ops->proc_flags & PROC_ENTRY_PERMANENT) { + pde->flags |= PROC_ENTRY_PERMANENT; + } WARNING: line over 80 characters torvalds#203: FILE: fs/proc/generic.c:676: + WARN(1, "removing permanent /proc entry '%s'", de->name); WARNING: braces {} are not necessary for single statement blocks torvalds#207: FILE: fs/proc/generic.c:680: + if (S_ISDIR(de->mode)) { + parent->nlink--; + } WARNING: line over 80 characters torvalds#244: FILE: fs/proc/inode.c:198: +static loff_t pde_lseek(struct proc_dir_entry *pde, struct file *file, loff_t offset, int whence) WARNING: line over 80 characters torvalds#274: FILE: fs/proc/inode.c:222: +static ssize_t pde_read(struct proc_dir_entry *pde, struct file *file, char __user *buf, size_t count, loff_t *ppos) WARNING: line over 80 characters torvalds#303: FILE: fs/proc/inode.c:246: +static ssize_t pde_write(struct proc_dir_entry *pde, struct file *file, const char __user *buf, size_t count, loff_t *ppos) WARNING: line over 80 characters torvalds#332: FILE: fs/proc/inode.c:270: +static __poll_t pde_poll(struct proc_dir_entry *pde, struct file *file, struct poll_table_struct *pts) WARNING: line over 80 characters torvalds#361: FILE: fs/proc/inode.c:294: +static long pde_ioctl(struct proc_dir_entry *pde, struct file *file, unsigned int cmd, unsigned long arg) WARNING: line over 80 characters torvalds#391: FILE: fs/proc/inode.c:319: +static long pde_compat_ioctl(struct proc_dir_entry *pde, struct file *file, unsigned int cmd, unsigned long arg) WARNING: line over 80 characters torvalds#421: FILE: fs/proc/inode.c:343: +static int pde_mmap(struct proc_dir_entry *pde, struct file *file, struct vm_area_struct *vma) WARNING: line over 80 characters torvalds#452: FILE: fs/proc/inode.c:368: +pde_get_unmapped_area(struct proc_dir_entry *pde, struct file *file, unsigned long orig_addr, WARNING: line over 80 characters torvalds#489: FILE: fs/proc/inode.c:393: + return pde_get_unmapped_area(pde, file, orig_addr, len, pgoff, flags); WARNING: line over 80 characters torvalds#491: FILE: fs/proc/inode.c:395: + rv = pde_get_unmapped_area(pde, file, orig_addr, len, pgoff, flags); WARNING: braces {} are not necessary for single statement blocks torvalds#518: FILE: fs/proc/inode.c:470: + if (release) { + return release(inode, file); + } total: 0 errors, 15 warnings, 462 lines checked NOTE: For some of the reported defects, checkpatch may be able to mechanically convert to the typical style using --fix or --fix-inplace. ./patches/proc-faster-open-read-close-with-permanent-files.patch has style problems, please review. NOTE: If any of the errors are false positives, please report them to the maintainer, see CHECKPATCH in MAINTAINERS. Please run checkpatch prior to sending patches Cc: Alexey Dobriyan <adobriyan@gmail.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Stephen Rothwell <sfr@canb.auug.org.au>
WARNING: Possible unwrapped commit description (prefer a maximum 75 chars per line) torvalds#12: Save 2 atomic ops, 1 allocation, 1 free per open/read/close sequence for such WARNING: braces {} are not necessary for single statement blocks torvalds#163: FILE: fs/proc/generic.c:536: + if (pde->proc_ops->proc_flags & PROC_ENTRY_PERMANENT) { + pde->flags |= PROC_ENTRY_PERMANENT; + } WARNING: line over 80 characters torvalds#203: FILE: fs/proc/generic.c:676: + WARN(1, "removing permanent /proc entry '%s'", de->name); WARNING: braces {} are not necessary for single statement blocks torvalds#207: FILE: fs/proc/generic.c:680: + if (S_ISDIR(de->mode)) { + parent->nlink--; + } WARNING: line over 80 characters torvalds#244: FILE: fs/proc/inode.c:198: +static loff_t pde_lseek(struct proc_dir_entry *pde, struct file *file, loff_t offset, int whence) WARNING: line over 80 characters torvalds#274: FILE: fs/proc/inode.c:222: +static ssize_t pde_read(struct proc_dir_entry *pde, struct file *file, char __user *buf, size_t count, loff_t *ppos) WARNING: line over 80 characters torvalds#303: FILE: fs/proc/inode.c:246: +static ssize_t pde_write(struct proc_dir_entry *pde, struct file *file, const char __user *buf, size_t count, loff_t *ppos) WARNING: line over 80 characters torvalds#332: FILE: fs/proc/inode.c:270: +static __poll_t pde_poll(struct proc_dir_entry *pde, struct file *file, struct poll_table_struct *pts) WARNING: line over 80 characters torvalds#361: FILE: fs/proc/inode.c:294: +static long pde_ioctl(struct proc_dir_entry *pde, struct file *file, unsigned int cmd, unsigned long arg) WARNING: line over 80 characters torvalds#391: FILE: fs/proc/inode.c:319: +static long pde_compat_ioctl(struct proc_dir_entry *pde, struct file *file, unsigned int cmd, unsigned long arg) WARNING: line over 80 characters torvalds#421: FILE: fs/proc/inode.c:343: +static int pde_mmap(struct proc_dir_entry *pde, struct file *file, struct vm_area_struct *vma) WARNING: line over 80 characters torvalds#452: FILE: fs/proc/inode.c:368: +pde_get_unmapped_area(struct proc_dir_entry *pde, struct file *file, unsigned long orig_addr, WARNING: line over 80 characters torvalds#489: FILE: fs/proc/inode.c:393: + return pde_get_unmapped_area(pde, file, orig_addr, len, pgoff, flags); WARNING: line over 80 characters torvalds#491: FILE: fs/proc/inode.c:395: + rv = pde_get_unmapped_area(pde, file, orig_addr, len, pgoff, flags); WARNING: braces {} are not necessary for single statement blocks torvalds#518: FILE: fs/proc/inode.c:470: + if (release) { + return release(inode, file); + } total: 0 errors, 15 warnings, 462 lines checked NOTE: For some of the reported defects, checkpatch may be able to mechanically convert to the typical style using --fix or --fix-inplace. ./patches/proc-faster-open-read-close-with-permanent-files.patch has style problems, please review. NOTE: If any of the errors are false positives, please report them to the maintainer, see CHECKPATCH in MAINTAINERS. Please run checkpatch prior to sending patches Cc: Alexey Dobriyan <adobriyan@gmail.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Stephen Rothwell <sfr@canb.auug.org.au>
WARNING: Possible unwrapped commit description (prefer a maximum 75 chars per line) torvalds#12: Save 2 atomic ops, 1 allocation, 1 free per open/read/close sequence for such WARNING: braces {} are not necessary for single statement blocks torvalds#163: FILE: fs/proc/generic.c:536: + if (pde->proc_ops->proc_flags & PROC_ENTRY_PERMANENT) { + pde->flags |= PROC_ENTRY_PERMANENT; + } WARNING: line over 80 characters torvalds#203: FILE: fs/proc/generic.c:676: + WARN(1, "removing permanent /proc entry '%s'", de->name); WARNING: braces {} are not necessary for single statement blocks torvalds#207: FILE: fs/proc/generic.c:680: + if (S_ISDIR(de->mode)) { + parent->nlink--; + } WARNING: line over 80 characters torvalds#244: FILE: fs/proc/inode.c:198: +static loff_t pde_lseek(struct proc_dir_entry *pde, struct file *file, loff_t offset, int whence) WARNING: line over 80 characters torvalds#274: FILE: fs/proc/inode.c:222: +static ssize_t pde_read(struct proc_dir_entry *pde, struct file *file, char __user *buf, size_t count, loff_t *ppos) WARNING: line over 80 characters torvalds#303: FILE: fs/proc/inode.c:246: +static ssize_t pde_write(struct proc_dir_entry *pde, struct file *file, const char __user *buf, size_t count, loff_t *ppos) WARNING: line over 80 characters torvalds#332: FILE: fs/proc/inode.c:270: +static __poll_t pde_poll(struct proc_dir_entry *pde, struct file *file, struct poll_table_struct *pts) WARNING: line over 80 characters torvalds#361: FILE: fs/proc/inode.c:294: +static long pde_ioctl(struct proc_dir_entry *pde, struct file *file, unsigned int cmd, unsigned long arg) WARNING: line over 80 characters torvalds#391: FILE: fs/proc/inode.c:319: +static long pde_compat_ioctl(struct proc_dir_entry *pde, struct file *file, unsigned int cmd, unsigned long arg) WARNING: line over 80 characters torvalds#421: FILE: fs/proc/inode.c:343: +static int pde_mmap(struct proc_dir_entry *pde, struct file *file, struct vm_area_struct *vma) WARNING: line over 80 characters torvalds#452: FILE: fs/proc/inode.c:368: +pde_get_unmapped_area(struct proc_dir_entry *pde, struct file *file, unsigned long orig_addr, WARNING: line over 80 characters torvalds#489: FILE: fs/proc/inode.c:393: + return pde_get_unmapped_area(pde, file, orig_addr, len, pgoff, flags); WARNING: line over 80 characters torvalds#491: FILE: fs/proc/inode.c:395: + rv = pde_get_unmapped_area(pde, file, orig_addr, len, pgoff, flags); WARNING: braces {} are not necessary for single statement blocks torvalds#518: FILE: fs/proc/inode.c:470: + if (release) { + return release(inode, file); + } total: 0 errors, 15 warnings, 462 lines checked NOTE: For some of the reported defects, checkpatch may be able to mechanically convert to the typical style using --fix or --fix-inplace. ./patches/proc-faster-open-read-close-with-permanent-files.patch has style problems, please review. NOTE: If any of the errors are false positives, please report them to the maintainer, see CHECKPATCH in MAINTAINERS. Please run checkpatch prior to sending patches Cc: Alexey Dobriyan <adobriyan@gmail.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Stephen Rothwell <sfr@canb.auug.org.au>
WARNING: Possible unwrapped commit description (prefer a maximum 75 chars per line) torvalds#12: Save 2 atomic ops, 1 allocation, 1 free per open/read/close sequence for such WARNING: braces {} are not necessary for single statement blocks torvalds#163: FILE: fs/proc/generic.c:536: + if (pde->proc_ops->proc_flags & PROC_ENTRY_PERMANENT) { + pde->flags |= PROC_ENTRY_PERMANENT; + } WARNING: line over 80 characters torvalds#203: FILE: fs/proc/generic.c:676: + WARN(1, "removing permanent /proc entry '%s'", de->name); WARNING: braces {} are not necessary for single statement blocks torvalds#207: FILE: fs/proc/generic.c:680: + if (S_ISDIR(de->mode)) { + parent->nlink--; + } WARNING: line over 80 characters torvalds#244: FILE: fs/proc/inode.c:198: +static loff_t pde_lseek(struct proc_dir_entry *pde, struct file *file, loff_t offset, int whence) WARNING: line over 80 characters torvalds#274: FILE: fs/proc/inode.c:222: +static ssize_t pde_read(struct proc_dir_entry *pde, struct file *file, char __user *buf, size_t count, loff_t *ppos) WARNING: line over 80 characters torvalds#303: FILE: fs/proc/inode.c:246: +static ssize_t pde_write(struct proc_dir_entry *pde, struct file *file, const char __user *buf, size_t count, loff_t *ppos) WARNING: line over 80 characters torvalds#332: FILE: fs/proc/inode.c:270: +static __poll_t pde_poll(struct proc_dir_entry *pde, struct file *file, struct poll_table_struct *pts) WARNING: line over 80 characters torvalds#361: FILE: fs/proc/inode.c:294: +static long pde_ioctl(struct proc_dir_entry *pde, struct file *file, unsigned int cmd, unsigned long arg) WARNING: line over 80 characters torvalds#391: FILE: fs/proc/inode.c:319: +static long pde_compat_ioctl(struct proc_dir_entry *pde, struct file *file, unsigned int cmd, unsigned long arg) WARNING: line over 80 characters torvalds#421: FILE: fs/proc/inode.c:343: +static int pde_mmap(struct proc_dir_entry *pde, struct file *file, struct vm_area_struct *vma) WARNING: line over 80 characters torvalds#452: FILE: fs/proc/inode.c:368: +pde_get_unmapped_area(struct proc_dir_entry *pde, struct file *file, unsigned long orig_addr, WARNING: line over 80 characters torvalds#489: FILE: fs/proc/inode.c:393: + return pde_get_unmapped_area(pde, file, orig_addr, len, pgoff, flags); WARNING: line over 80 characters torvalds#491: FILE: fs/proc/inode.c:395: + rv = pde_get_unmapped_area(pde, file, orig_addr, len, pgoff, flags); WARNING: braces {} are not necessary for single statement blocks torvalds#518: FILE: fs/proc/inode.c:470: + if (release) { + return release(inode, file); + } total: 0 errors, 15 warnings, 462 lines checked NOTE: For some of the reported defects, checkpatch may be able to mechanically convert to the typical style using --fix or --fix-inplace. ./patches/proc-faster-open-read-close-with-permanent-files.patch has style problems, please review. NOTE: If any of the errors are false positives, please report them to the maintainer, see CHECKPATCH in MAINTAINERS. Please run checkpatch prior to sending patches Cc: Alexey Dobriyan <adobriyan@gmail.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Stephen Rothwell <sfr@canb.auug.org.au>
WARNING: Possible unwrapped commit description (prefer a maximum 75 chars per line) torvalds#12: Save 2 atomic ops, 1 allocation, 1 free per open/read/close sequence for such WARNING: braces {} are not necessary for single statement blocks torvalds#163: FILE: fs/proc/generic.c:536: + if (pde->proc_ops->proc_flags & PROC_ENTRY_PERMANENT) { + pde->flags |= PROC_ENTRY_PERMANENT; + } WARNING: line over 80 characters torvalds#203: FILE: fs/proc/generic.c:676: + WARN(1, "removing permanent /proc entry '%s'", de->name); WARNING: braces {} are not necessary for single statement blocks torvalds#207: FILE: fs/proc/generic.c:680: + if (S_ISDIR(de->mode)) { + parent->nlink--; + } WARNING: line over 80 characters torvalds#244: FILE: fs/proc/inode.c:198: +static loff_t pde_lseek(struct proc_dir_entry *pde, struct file *file, loff_t offset, int whence) WARNING: line over 80 characters torvalds#274: FILE: fs/proc/inode.c:222: +static ssize_t pde_read(struct proc_dir_entry *pde, struct file *file, char __user *buf, size_t count, loff_t *ppos) WARNING: line over 80 characters torvalds#303: FILE: fs/proc/inode.c:246: +static ssize_t pde_write(struct proc_dir_entry *pde, struct file *file, const char __user *buf, size_t count, loff_t *ppos) WARNING: line over 80 characters torvalds#332: FILE: fs/proc/inode.c:270: +static __poll_t pde_poll(struct proc_dir_entry *pde, struct file *file, struct poll_table_struct *pts) WARNING: line over 80 characters torvalds#361: FILE: fs/proc/inode.c:294: +static long pde_ioctl(struct proc_dir_entry *pde, struct file *file, unsigned int cmd, unsigned long arg) WARNING: line over 80 characters torvalds#391: FILE: fs/proc/inode.c:319: +static long pde_compat_ioctl(struct proc_dir_entry *pde, struct file *file, unsigned int cmd, unsigned long arg) WARNING: line over 80 characters torvalds#421: FILE: fs/proc/inode.c:343: +static int pde_mmap(struct proc_dir_entry *pde, struct file *file, struct vm_area_struct *vma) WARNING: line over 80 characters torvalds#452: FILE: fs/proc/inode.c:368: +pde_get_unmapped_area(struct proc_dir_entry *pde, struct file *file, unsigned long orig_addr, WARNING: line over 80 characters torvalds#489: FILE: fs/proc/inode.c:393: + return pde_get_unmapped_area(pde, file, orig_addr, len, pgoff, flags); WARNING: line over 80 characters torvalds#491: FILE: fs/proc/inode.c:395: + rv = pde_get_unmapped_area(pde, file, orig_addr, len, pgoff, flags); WARNING: braces {} are not necessary for single statement blocks torvalds#518: FILE: fs/proc/inode.c:470: + if (release) { + return release(inode, file); + } total: 0 errors, 15 warnings, 462 lines checked NOTE: For some of the reported defects, checkpatch may be able to mechanically convert to the typical style using --fix or --fix-inplace. ./patches/proc-faster-open-read-close-with-permanent-files.patch has style problems, please review. NOTE: If any of the errors are false positives, please report them to the maintainer, see CHECKPATCH in MAINTAINERS. Please run checkpatch prior to sending patches Cc: Alexey Dobriyan <adobriyan@gmail.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Stephen Rothwell <sfr@canb.auug.org.au>
WARNING: Possible unwrapped commit description (prefer a maximum 75 chars per line) torvalds#12: Save 2 atomic ops, 1 allocation, 1 free per open/read/close sequence for such WARNING: braces {} are not necessary for single statement blocks torvalds#163: FILE: fs/proc/generic.c:536: + if (pde->proc_ops->proc_flags & PROC_ENTRY_PERMANENT) { + pde->flags |= PROC_ENTRY_PERMANENT; + } WARNING: line over 80 characters torvalds#203: FILE: fs/proc/generic.c:676: + WARN(1, "removing permanent /proc entry '%s'", de->name); WARNING: braces {} are not necessary for single statement blocks torvalds#207: FILE: fs/proc/generic.c:680: + if (S_ISDIR(de->mode)) { + parent->nlink--; + } WARNING: line over 80 characters torvalds#244: FILE: fs/proc/inode.c:198: +static loff_t pde_lseek(struct proc_dir_entry *pde, struct file *file, loff_t offset, int whence) WARNING: line over 80 characters torvalds#274: FILE: fs/proc/inode.c:222: +static ssize_t pde_read(struct proc_dir_entry *pde, struct file *file, char __user *buf, size_t count, loff_t *ppos) WARNING: line over 80 characters torvalds#303: FILE: fs/proc/inode.c:246: +static ssize_t pde_write(struct proc_dir_entry *pde, struct file *file, const char __user *buf, size_t count, loff_t *ppos) WARNING: line over 80 characters torvalds#332: FILE: fs/proc/inode.c:270: +static __poll_t pde_poll(struct proc_dir_entry *pde, struct file *file, struct poll_table_struct *pts) WARNING: line over 80 characters torvalds#361: FILE: fs/proc/inode.c:294: +static long pde_ioctl(struct proc_dir_entry *pde, struct file *file, unsigned int cmd, unsigned long arg) WARNING: line over 80 characters torvalds#391: FILE: fs/proc/inode.c:319: +static long pde_compat_ioctl(struct proc_dir_entry *pde, struct file *file, unsigned int cmd, unsigned long arg) WARNING: line over 80 characters torvalds#421: FILE: fs/proc/inode.c:343: +static int pde_mmap(struct proc_dir_entry *pde, struct file *file, struct vm_area_struct *vma) WARNING: line over 80 characters torvalds#452: FILE: fs/proc/inode.c:368: +pde_get_unmapped_area(struct proc_dir_entry *pde, struct file *file, unsigned long orig_addr, WARNING: line over 80 characters torvalds#489: FILE: fs/proc/inode.c:393: + return pde_get_unmapped_area(pde, file, orig_addr, len, pgoff, flags); WARNING: line over 80 characters torvalds#491: FILE: fs/proc/inode.c:395: + rv = pde_get_unmapped_area(pde, file, orig_addr, len, pgoff, flags); WARNING: braces {} are not necessary for single statement blocks torvalds#518: FILE: fs/proc/inode.c:470: + if (release) { + return release(inode, file); + } total: 0 errors, 15 warnings, 462 lines checked NOTE: For some of the reported defects, checkpatch may be able to mechanically convert to the typical style using --fix or --fix-inplace. ./patches/proc-faster-open-read-close-with-permanent-files.patch has style problems, please review. NOTE: If any of the errors are false positives, please report them to the maintainer, see CHECKPATCH in MAINTAINERS. Please run checkpatch prior to sending patches Cc: Alexey Dobriyan <adobriyan@gmail.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Stephen Rothwell <sfr@canb.auug.org.au>
WARNING: Possible unwrapped commit description (prefer a maximum 75 chars per line) torvalds#12: Save 2 atomic ops, 1 allocation, 1 free per open/read/close sequence for such WARNING: braces {} are not necessary for single statement blocks torvalds#163: FILE: fs/proc/generic.c:536: + if (pde->proc_ops->proc_flags & PROC_ENTRY_PERMANENT) { + pde->flags |= PROC_ENTRY_PERMANENT; + } WARNING: line over 80 characters torvalds#203: FILE: fs/proc/generic.c:676: + WARN(1, "removing permanent /proc entry '%s'", de->name); WARNING: braces {} are not necessary for single statement blocks torvalds#207: FILE: fs/proc/generic.c:680: + if (S_ISDIR(de->mode)) { + parent->nlink--; + } WARNING: line over 80 characters torvalds#244: FILE: fs/proc/inode.c:198: +static loff_t pde_lseek(struct proc_dir_entry *pde, struct file *file, loff_t offset, int whence) WARNING: line over 80 characters torvalds#274: FILE: fs/proc/inode.c:222: +static ssize_t pde_read(struct proc_dir_entry *pde, struct file *file, char __user *buf, size_t count, loff_t *ppos) WARNING: line over 80 characters torvalds#303: FILE: fs/proc/inode.c:246: +static ssize_t pde_write(struct proc_dir_entry *pde, struct file *file, const char __user *buf, size_t count, loff_t *ppos) WARNING: line over 80 characters torvalds#332: FILE: fs/proc/inode.c:270: +static __poll_t pde_poll(struct proc_dir_entry *pde, struct file *file, struct poll_table_struct *pts) WARNING: line over 80 characters torvalds#361: FILE: fs/proc/inode.c:294: +static long pde_ioctl(struct proc_dir_entry *pde, struct file *file, unsigned int cmd, unsigned long arg) WARNING: line over 80 characters torvalds#391: FILE: fs/proc/inode.c:319: +static long pde_compat_ioctl(struct proc_dir_entry *pde, struct file *file, unsigned int cmd, unsigned long arg) WARNING: line over 80 characters torvalds#421: FILE: fs/proc/inode.c:343: +static int pde_mmap(struct proc_dir_entry *pde, struct file *file, struct vm_area_struct *vma) WARNING: line over 80 characters torvalds#452: FILE: fs/proc/inode.c:368: +pde_get_unmapped_area(struct proc_dir_entry *pde, struct file *file, unsigned long orig_addr, WARNING: line over 80 characters torvalds#489: FILE: fs/proc/inode.c:393: + return pde_get_unmapped_area(pde, file, orig_addr, len, pgoff, flags); WARNING: line over 80 characters torvalds#491: FILE: fs/proc/inode.c:395: + rv = pde_get_unmapped_area(pde, file, orig_addr, len, pgoff, flags); WARNING: braces {} are not necessary for single statement blocks torvalds#518: FILE: fs/proc/inode.c:470: + if (release) { + return release(inode, file); + } total: 0 errors, 15 warnings, 462 lines checked NOTE: For some of the reported defects, checkpatch may be able to mechanically convert to the typical style using --fix or --fix-inplace. ./patches/proc-faster-open-read-close-with-permanent-files.patch has style problems, please review. NOTE: If any of the errors are false positives, please report them to the maintainer, see CHECKPATCH in MAINTAINERS. Please run checkpatch prior to sending patches Cc: Alexey Dobriyan <adobriyan@gmail.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Stephen Rothwell <sfr@canb.auug.org.au>
WARNING: Possible unwrapped commit description (prefer a maximum 75 chars per line) torvalds#12: Save 2 atomic ops, 1 allocation, 1 free per open/read/close sequence for such WARNING: braces {} are not necessary for single statement blocks torvalds#163: FILE: fs/proc/generic.c:536: + if (pde->proc_ops->proc_flags & PROC_ENTRY_PERMANENT) { + pde->flags |= PROC_ENTRY_PERMANENT; + } WARNING: line over 80 characters torvalds#203: FILE: fs/proc/generic.c:676: + WARN(1, "removing permanent /proc entry '%s'", de->name); WARNING: braces {} are not necessary for single statement blocks torvalds#207: FILE: fs/proc/generic.c:680: + if (S_ISDIR(de->mode)) { + parent->nlink--; + } WARNING: line over 80 characters torvalds#244: FILE: fs/proc/inode.c:198: +static loff_t pde_lseek(struct proc_dir_entry *pde, struct file *file, loff_t offset, int whence) WARNING: line over 80 characters torvalds#274: FILE: fs/proc/inode.c:222: +static ssize_t pde_read(struct proc_dir_entry *pde, struct file *file, char __user *buf, size_t count, loff_t *ppos) WARNING: line over 80 characters torvalds#303: FILE: fs/proc/inode.c:246: +static ssize_t pde_write(struct proc_dir_entry *pde, struct file *file, const char __user *buf, size_t count, loff_t *ppos) WARNING: line over 80 characters torvalds#332: FILE: fs/proc/inode.c:270: +static __poll_t pde_poll(struct proc_dir_entry *pde, struct file *file, struct poll_table_struct *pts) WARNING: line over 80 characters torvalds#361: FILE: fs/proc/inode.c:294: +static long pde_ioctl(struct proc_dir_entry *pde, struct file *file, unsigned int cmd, unsigned long arg) WARNING: line over 80 characters torvalds#391: FILE: fs/proc/inode.c:319: +static long pde_compat_ioctl(struct proc_dir_entry *pde, struct file *file, unsigned int cmd, unsigned long arg) WARNING: line over 80 characters torvalds#421: FILE: fs/proc/inode.c:343: +static int pde_mmap(struct proc_dir_entry *pde, struct file *file, struct vm_area_struct *vma) WARNING: line over 80 characters torvalds#452: FILE: fs/proc/inode.c:368: +pde_get_unmapped_area(struct proc_dir_entry *pde, struct file *file, unsigned long orig_addr, WARNING: line over 80 characters torvalds#489: FILE: fs/proc/inode.c:393: + return pde_get_unmapped_area(pde, file, orig_addr, len, pgoff, flags); WARNING: line over 80 characters torvalds#491: FILE: fs/proc/inode.c:395: + rv = pde_get_unmapped_area(pde, file, orig_addr, len, pgoff, flags); WARNING: braces {} are not necessary for single statement blocks torvalds#518: FILE: fs/proc/inode.c:470: + if (release) { + return release(inode, file); + } total: 0 errors, 15 warnings, 462 lines checked NOTE: For some of the reported defects, checkpatch may be able to mechanically convert to the typical style using --fix or --fix-inplace. ./patches/proc-faster-open-read-close-with-permanent-files.patch has style problems, please review. NOTE: If any of the errors are false positives, please report them to the maintainer, see CHECKPATCH in MAINTAINERS. Please run checkpatch prior to sending patches Cc: Alexey Dobriyan <adobriyan@gmail.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Stephen Rothwell <sfr@canb.auug.org.au>
WARNING: Possible unwrapped commit description (prefer a maximum 75 chars per line) torvalds#12: Save 2 atomic ops, 1 allocation, 1 free per open/read/close sequence for such WARNING: braces {} are not necessary for single statement blocks torvalds#163: FILE: fs/proc/generic.c:536: + if (pde->proc_ops->proc_flags & PROC_ENTRY_PERMANENT) { + pde->flags |= PROC_ENTRY_PERMANENT; + } WARNING: line over 80 characters torvalds#203: FILE: fs/proc/generic.c:676: + WARN(1, "removing permanent /proc entry '%s'", de->name); WARNING: braces {} are not necessary for single statement blocks torvalds#207: FILE: fs/proc/generic.c:680: + if (S_ISDIR(de->mode)) { + parent->nlink--; + } WARNING: line over 80 characters torvalds#244: FILE: fs/proc/inode.c:198: +static loff_t pde_lseek(struct proc_dir_entry *pde, struct file *file, loff_t offset, int whence) WARNING: line over 80 characters torvalds#274: FILE: fs/proc/inode.c:222: +static ssize_t pde_read(struct proc_dir_entry *pde, struct file *file, char __user *buf, size_t count, loff_t *ppos) WARNING: line over 80 characters torvalds#303: FILE: fs/proc/inode.c:246: +static ssize_t pde_write(struct proc_dir_entry *pde, struct file *file, const char __user *buf, size_t count, loff_t *ppos) WARNING: line over 80 characters torvalds#332: FILE: fs/proc/inode.c:270: +static __poll_t pde_poll(struct proc_dir_entry *pde, struct file *file, struct poll_table_struct *pts) WARNING: line over 80 characters torvalds#361: FILE: fs/proc/inode.c:294: +static long pde_ioctl(struct proc_dir_entry *pde, struct file *file, unsigned int cmd, unsigned long arg) WARNING: line over 80 characters torvalds#391: FILE: fs/proc/inode.c:319: +static long pde_compat_ioctl(struct proc_dir_entry *pde, struct file *file, unsigned int cmd, unsigned long arg) WARNING: line over 80 characters torvalds#421: FILE: fs/proc/inode.c:343: +static int pde_mmap(struct proc_dir_entry *pde, struct file *file, struct vm_area_struct *vma) WARNING: line over 80 characters torvalds#452: FILE: fs/proc/inode.c:368: +pde_get_unmapped_area(struct proc_dir_entry *pde, struct file *file, unsigned long orig_addr, WARNING: line over 80 characters torvalds#489: FILE: fs/proc/inode.c:393: + return pde_get_unmapped_area(pde, file, orig_addr, len, pgoff, flags); WARNING: line over 80 characters torvalds#491: FILE: fs/proc/inode.c:395: + rv = pde_get_unmapped_area(pde, file, orig_addr, len, pgoff, flags); WARNING: braces {} are not necessary for single statement blocks torvalds#518: FILE: fs/proc/inode.c:470: + if (release) { + return release(inode, file); + } total: 0 errors, 15 warnings, 462 lines checked NOTE: For some of the reported defects, checkpatch may be able to mechanically convert to the typical style using --fix or --fix-inplace. ./patches/proc-faster-open-read-close-with-permanent-files.patch has style problems, please review. NOTE: If any of the errors are false positives, please report them to the maintainer, see CHECKPATCH in MAINTAINERS. Please run checkpatch prior to sending patches Cc: Alexey Dobriyan <adobriyan@gmail.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Stephen Rothwell <sfr@canb.auug.org.au>
WARNING: Possible unwrapped commit description (prefer a maximum 75 chars per line) torvalds#12: Save 2 atomic ops, 1 allocation, 1 free per open/read/close sequence for such WARNING: braces {} are not necessary for single statement blocks torvalds#163: FILE: fs/proc/generic.c:536: + if (pde->proc_ops->proc_flags & PROC_ENTRY_PERMANENT) { + pde->flags |= PROC_ENTRY_PERMANENT; + } WARNING: line over 80 characters torvalds#203: FILE: fs/proc/generic.c:676: + WARN(1, "removing permanent /proc entry '%s'", de->name); WARNING: braces {} are not necessary for single statement blocks torvalds#207: FILE: fs/proc/generic.c:680: + if (S_ISDIR(de->mode)) { + parent->nlink--; + } WARNING: line over 80 characters torvalds#244: FILE: fs/proc/inode.c:198: +static loff_t pde_lseek(struct proc_dir_entry *pde, struct file *file, loff_t offset, int whence) WARNING: line over 80 characters torvalds#274: FILE: fs/proc/inode.c:222: +static ssize_t pde_read(struct proc_dir_entry *pde, struct file *file, char __user *buf, size_t count, loff_t *ppos) WARNING: line over 80 characters torvalds#303: FILE: fs/proc/inode.c:246: +static ssize_t pde_write(struct proc_dir_entry *pde, struct file *file, const char __user *buf, size_t count, loff_t *ppos) WARNING: line over 80 characters torvalds#332: FILE: fs/proc/inode.c:270: +static __poll_t pde_poll(struct proc_dir_entry *pde, struct file *file, struct poll_table_struct *pts) WARNING: line over 80 characters torvalds#361: FILE: fs/proc/inode.c:294: +static long pde_ioctl(struct proc_dir_entry *pde, struct file *file, unsigned int cmd, unsigned long arg) WARNING: line over 80 characters torvalds#391: FILE: fs/proc/inode.c:319: +static long pde_compat_ioctl(struct proc_dir_entry *pde, struct file *file, unsigned int cmd, unsigned long arg) WARNING: line over 80 characters torvalds#421: FILE: fs/proc/inode.c:343: +static int pde_mmap(struct proc_dir_entry *pde, struct file *file, struct vm_area_struct *vma) WARNING: line over 80 characters torvalds#452: FILE: fs/proc/inode.c:368: +pde_get_unmapped_area(struct proc_dir_entry *pde, struct file *file, unsigned long orig_addr, WARNING: line over 80 characters torvalds#489: FILE: fs/proc/inode.c:393: + return pde_get_unmapped_area(pde, file, orig_addr, len, pgoff, flags); WARNING: line over 80 characters torvalds#491: FILE: fs/proc/inode.c:395: + rv = pde_get_unmapped_area(pde, file, orig_addr, len, pgoff, flags); WARNING: braces {} are not necessary for single statement blocks torvalds#518: FILE: fs/proc/inode.c:470: + if (release) { + return release(inode, file); + } total: 0 errors, 15 warnings, 462 lines checked NOTE: For some of the reported defects, checkpatch may be able to mechanically convert to the typical style using --fix or --fix-inplace. ./patches/proc-faster-open-read-close-with-permanent-files.patch has style problems, please review. NOTE: If any of the errors are false positives, please report them to the maintainer, see CHECKPATCH in MAINTAINERS. Please run checkpatch prior to sending patches Cc: Alexey Dobriyan <adobriyan@gmail.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Stephen Rothwell <sfr@canb.auug.org.au>
WARNING: Possible unwrapped commit description (prefer a maximum 75 chars per line) torvalds#12: Save 2 atomic ops, 1 allocation, 1 free per open/read/close sequence for such WARNING: braces {} are not necessary for single statement blocks torvalds#163: FILE: fs/proc/generic.c:536: + if (pde->proc_ops->proc_flags & PROC_ENTRY_PERMANENT) { + pde->flags |= PROC_ENTRY_PERMANENT; + } WARNING: line over 80 characters torvalds#203: FILE: fs/proc/generic.c:676: + WARN(1, "removing permanent /proc entry '%s'", de->name); WARNING: braces {} are not necessary for single statement blocks torvalds#207: FILE: fs/proc/generic.c:680: + if (S_ISDIR(de->mode)) { + parent->nlink--; + } WARNING: line over 80 characters torvalds#244: FILE: fs/proc/inode.c:198: +static loff_t pde_lseek(struct proc_dir_entry *pde, struct file *file, loff_t offset, int whence) WARNING: line over 80 characters torvalds#274: FILE: fs/proc/inode.c:222: +static ssize_t pde_read(struct proc_dir_entry *pde, struct file *file, char __user *buf, size_t count, loff_t *ppos) WARNING: line over 80 characters torvalds#303: FILE: fs/proc/inode.c:246: +static ssize_t pde_write(struct proc_dir_entry *pde, struct file *file, const char __user *buf, size_t count, loff_t *ppos) WARNING: line over 80 characters torvalds#332: FILE: fs/proc/inode.c:270: +static __poll_t pde_poll(struct proc_dir_entry *pde, struct file *file, struct poll_table_struct *pts) WARNING: line over 80 characters torvalds#361: FILE: fs/proc/inode.c:294: +static long pde_ioctl(struct proc_dir_entry *pde, struct file *file, unsigned int cmd, unsigned long arg) WARNING: line over 80 characters torvalds#391: FILE: fs/proc/inode.c:319: +static long pde_compat_ioctl(struct proc_dir_entry *pde, struct file *file, unsigned int cmd, unsigned long arg) WARNING: line over 80 characters torvalds#421: FILE: fs/proc/inode.c:343: +static int pde_mmap(struct proc_dir_entry *pde, struct file *file, struct vm_area_struct *vma) WARNING: line over 80 characters torvalds#452: FILE: fs/proc/inode.c:368: +pde_get_unmapped_area(struct proc_dir_entry *pde, struct file *file, unsigned long orig_addr, WARNING: line over 80 characters torvalds#489: FILE: fs/proc/inode.c:393: + return pde_get_unmapped_area(pde, file, orig_addr, len, pgoff, flags); WARNING: line over 80 characters torvalds#491: FILE: fs/proc/inode.c:395: + rv = pde_get_unmapped_area(pde, file, orig_addr, len, pgoff, flags); WARNING: braces {} are not necessary for single statement blocks torvalds#518: FILE: fs/proc/inode.c:470: + if (release) { + return release(inode, file); + } total: 0 errors, 15 warnings, 462 lines checked NOTE: For some of the reported defects, checkpatch may be able to mechanically convert to the typical style using --fix or --fix-inplace. ./patches/proc-faster-open-read-close-with-permanent-files.patch has style problems, please review. NOTE: If any of the errors are false positives, please report them to the maintainer, see CHECKPATCH in MAINTAINERS. Please run checkpatch prior to sending patches Cc: Alexey Dobriyan <adobriyan@gmail.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Stephen Rothwell <sfr@canb.auug.org.au>
WARNING: Possible unwrapped commit description (prefer a maximum 75 chars per line) torvalds#12: Save 2 atomic ops, 1 allocation, 1 free per open/read/close sequence for such WARNING: braces {} are not necessary for single statement blocks torvalds#163: FILE: fs/proc/generic.c:536: + if (pde->proc_ops->proc_flags & PROC_ENTRY_PERMANENT) { + pde->flags |= PROC_ENTRY_PERMANENT; + } WARNING: line over 80 characters torvalds#203: FILE: fs/proc/generic.c:676: + WARN(1, "removing permanent /proc entry '%s'", de->name); WARNING: braces {} are not necessary for single statement blocks torvalds#207: FILE: fs/proc/generic.c:680: + if (S_ISDIR(de->mode)) { + parent->nlink--; + } WARNING: line over 80 characters torvalds#244: FILE: fs/proc/inode.c:198: +static loff_t pde_lseek(struct proc_dir_entry *pde, struct file *file, loff_t offset, int whence) WARNING: line over 80 characters torvalds#274: FILE: fs/proc/inode.c:222: +static ssize_t pde_read(struct proc_dir_entry *pde, struct file *file, char __user *buf, size_t count, loff_t *ppos) WARNING: line over 80 characters torvalds#303: FILE: fs/proc/inode.c:246: +static ssize_t pde_write(struct proc_dir_entry *pde, struct file *file, const char __user *buf, size_t count, loff_t *ppos) WARNING: line over 80 characters torvalds#332: FILE: fs/proc/inode.c:270: +static __poll_t pde_poll(struct proc_dir_entry *pde, struct file *file, struct poll_table_struct *pts) WARNING: line over 80 characters torvalds#361: FILE: fs/proc/inode.c:294: +static long pde_ioctl(struct proc_dir_entry *pde, struct file *file, unsigned int cmd, unsigned long arg) WARNING: line over 80 characters torvalds#391: FILE: fs/proc/inode.c:319: +static long pde_compat_ioctl(struct proc_dir_entry *pde, struct file *file, unsigned int cmd, unsigned long arg) WARNING: line over 80 characters torvalds#421: FILE: fs/proc/inode.c:343: +static int pde_mmap(struct proc_dir_entry *pde, struct file *file, struct vm_area_struct *vma) WARNING: line over 80 characters torvalds#452: FILE: fs/proc/inode.c:368: +pde_get_unmapped_area(struct proc_dir_entry *pde, struct file *file, unsigned long orig_addr, WARNING: line over 80 characters torvalds#489: FILE: fs/proc/inode.c:393: + return pde_get_unmapped_area(pde, file, orig_addr, len, pgoff, flags); WARNING: line over 80 characters torvalds#491: FILE: fs/proc/inode.c:395: + rv = pde_get_unmapped_area(pde, file, orig_addr, len, pgoff, flags); WARNING: braces {} are not necessary for single statement blocks torvalds#518: FILE: fs/proc/inode.c:470: + if (release) { + return release(inode, file); + } total: 0 errors, 15 warnings, 462 lines checked NOTE: For some of the reported defects, checkpatch may be able to mechanically convert to the typical style using --fix or --fix-inplace. ./patches/proc-faster-open-read-close-with-permanent-files.patch has style problems, please review. NOTE: If any of the errors are false positives, please report them to the maintainer, see CHECKPATCH in MAINTAINERS. Please run checkpatch prior to sending patches Cc: Alexey Dobriyan <adobriyan@gmail.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Stephen Rothwell <sfr@canb.auug.org.au>
BugLink: https://bugs.launchpad.net/bugs/1867677 commit db6a501 upstream. rcu_read_lock is needed to protect access to psock inside sock_map_unref when tearing down the map. However, we can't afford to sleep in lock_sock while in RCU read-side critical section. Grab the RCU lock only after we have locked the socket. This fixes RCU warnings triggerable on a VM with 1 vCPU when free'ing a sockmap/sockhash that contains at least one socket: | ============================= | WARNING: suspicious RCU usage | 5.5.0-04005-g8fc91b972b73 torvalds#450 Not tainted | ----------------------------- | include/linux/rcupdate.h:272 Illegal context switch in RCU read-side critical section! | | other info that might help us debug this: | | | rcu_scheduler_active = 2, debug_locks = 1 | 4 locks held by kworker/0:1/62: | #0: ffff88813b019748 ((wq_completion)events){+.+.}, at: process_one_work+0x1d7/0x5e0 | #1: ffffc900000abe50 ((work_completion)(&map->work)){+.+.}, at: process_one_work+0x1d7/0x5e0 | #2: ffffffff82065d20 (rcu_read_lock){....}, at: sock_map_free+0x5/0x170 | #3: ffff8881368c5df8 (&stab->lock){+...}, at: sock_map_free+0x64/0x170 | | stack backtrace: | CPU: 0 PID: 62 Comm: kworker/0:1 Not tainted 5.5.0-04005-g8fc91b972b73 torvalds#450 | Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS ?-20190727_073836-buildvm-ppc64le-16.ppc.fedoraproject.org-3.fc31 04/01/2014 | Workqueue: events bpf_map_free_deferred | Call Trace: | dump_stack+0x71/0xa0 | ___might_sleep+0x105/0x190 | lock_sock_nested+0x28/0x90 | sock_map_free+0x95/0x170 | bpf_map_free_deferred+0x58/0x80 | process_one_work+0x260/0x5e0 | worker_thread+0x4d/0x3e0 | kthread+0x108/0x140 | ? process_one_work+0x5e0/0x5e0 | ? kthread_park+0x90/0x90 | ret_from_fork+0x3a/0x50 | ============================= | WARNING: suspicious RCU usage | 5.5.0-04005-g8fc91b972b73-dirty torvalds#452 Not tainted | ----------------------------- | include/linux/rcupdate.h:272 Illegal context switch in RCU read-side critical section! | | other info that might help us debug this: | | | rcu_scheduler_active = 2, debug_locks = 1 | 4 locks held by kworker/0:1/62: | #0: ffff88813b019748 ((wq_completion)events){+.+.}, at: process_one_work+0x1d7/0x5e0 | #1: ffffc900000abe50 ((work_completion)(&map->work)){+.+.}, at: process_one_work+0x1d7/0x5e0 | #2: ffffffff82065d20 (rcu_read_lock){....}, at: sock_hash_free+0x5/0x1d0 | #3: ffff888139966e00 (&htab->buckets[i].lock){+...}, at: sock_hash_free+0x92/0x1d0 | | stack backtrace: | CPU: 0 PID: 62 Comm: kworker/0:1 Not tainted 5.5.0-04005-g8fc91b972b73-dirty torvalds#452 | Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS ?-20190727_073836-buildvm-ppc64le-16.ppc.fedoraproject.org-3.fc31 04/01/2014 | Workqueue: events bpf_map_free_deferred | Call Trace: | dump_stack+0x71/0xa0 | ___might_sleep+0x105/0x190 | lock_sock_nested+0x28/0x90 | sock_hash_free+0xec/0x1d0 | bpf_map_free_deferred+0x58/0x80 | process_one_work+0x260/0x5e0 | worker_thread+0x4d/0x3e0 | kthread+0x108/0x140 | ? process_one_work+0x5e0/0x5e0 | ? kthread_park+0x90/0x90 | ret_from_fork+0x3a/0x50 Fixes: 7e81a35 ("bpf: Sockmap, ensure sock lock held during tear down") Signed-off-by: Jakub Sitnicki <jakub@cloudflare.com> Signed-off-by: Daniel Borkmann <daniel@iogearbox.net> Acked-by: John Fastabend <john.fastabend@gmail.com> Link: https://lore.kernel.org/bpf/20200206111652.694507-2-jakub@cloudflare.com Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org> Signed-off-by: Kamal Mostafa <kamal@canonical.com> Signed-off-by: Khalid Elmously <khalid.elmously@canonical.com>
rust: add `pr_debug`.
Fixed following WARNINGs: for torvalds#355, removed this unnecessary log print. for torvalds#364, added a variable to "struct es8316_priv", and tried to let function es8316_enable_jack_detect() align to mainline code. for torvalds#452, removed it since we did not verified the patch on other platform. WARNING: Unnecessary ftrace-like logging - prefer using ftrace torvalds#355: FILE: sound/soc/codecs/es8316.c:751: + dev_dbg(comp->dev, "Exit %s\n", __func__); ERROR: do not initialise statics to 0 torvalds#364: FILE: sound/soc/codecs/es8316.c:760: + static int initial = 0; WARNING: DT compatible string "everest,es8336" appears un-documented -- check ./Documentation/devicetree/bindings/ torvalds#452: FILE: sound/soc/codecs/es8316.c:932: + { .compatible = "everest,es8336", }, Signed-off-by: Huajun Li <huajun.li@intel.com>
commit c35559f ("x86/shstk: Introduce map_shadow_stack syscall") recently added support for map_shadow_stack() but it is limited to x86 only for now. There is a possibility that other architectures (namely, arm64 and RISC-V), that are implementing equivalent support for shadow stacks, might need to add support for it. Independent of that, reserving arch-specific syscall numbers in the syscall tables of all architectures is good practice and would help avoid future conflicts. map_shadow_stack() is marked as a conditional syscall in sys_ni.c. Adding it to the syscall tables of other architectures is harmless and would return ENOSYS when exercised. Note, map_shadow_stack() was assigned #453 during the merge process since torvalds#452 was taken by fchmodat2(). For Powerpc, map it to sys_ni_syscall() as is the norm for Powerpc syscall tables. For Alpha, map_shadow_stack() takes up torvalds#563 as Alpha still diverges from the common syscall numbering system in the other architectures. Link: https://lore.kernel.org/lkml/20230515212255.GA562920@debug.ba.rivosinc.com/ Link: https://lore.kernel.org/lkml/b402b80b-a7c6-4ef0-b977-c0f5f582b78a@sirena.org.uk/ Signed-off-by: Sohil Mehta <sohil.mehta@intel.com> Reviewed-by: Rick Edgecombe <rick.p.edgecombe@intel.com> Reviewed-by: Arnd Bergmann <arnd@arndb.de> Acked-by: Michael Ellerman <mpe@ellerman.id.au> (powerpc) Acked-by: Catalin Marinas <catalin.marinas@arm.com> Acked-by: Geert Uytterhoeven <geert@linux-m68k.org> Signed-off-by: Arnd Bergmann <arnd@arndb.de>