Revert "parisc: fix a possible DMA corruption"

This reverts commit dadac97 which is
commit 7ae04ba upstream.

It is reported to cause build failures.

Reported-by: Guenter Roeck <linux@roeck-us.net>
Link: https://lore.kernel.org/r/436a575b-4ec0-43a2-b4e9-7eb00d9bbbeb@roeck-us.net
Cc: Mikulas Patocka <mpatocka@redhat.com>
Cc: Helge Deller <deller@gmx.de>
Cc: Mingli Yu <mingli.yu@windriver.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

arch/parisc/Kconfig

@@ -15,7 +15,6 @@ config PARISC
 	select ARCH_SPLIT_ARG64 if !64BIT
 	select ARCH_SUPPORTS_HUGETLBFS if PA20
 	select ARCH_SUPPORTS_MEMORY_FAILURE
-	select ARCH_HAS_CACHE_LINE_SIZE
 	select DMA_OPS
 	select RTC_CLASS
 	select RTC_DRV_GENERIC

arch/parisc/include/asm/cache.h

@@ -20,16 +20,7 @@
 
 #define SMP_CACHE_BYTES L1_CACHE_BYTES
 
-#ifdef CONFIG_PA20
-#define ARCH_DMA_MINALIGN	128
-#else
-#define ARCH_DMA_MINALIGN	32
-#endif
-#define ARCH_KMALLOC_MINALIGN	16	/* ldcw requires 16-byte alignment */
-
-#define arch_slab_minalign()	((unsigned)dcache_stride)
-#define cache_line_size()	dcache_stride
-#define dma_get_cache_alignment cache_line_size
+#define ARCH_DMA_MINALIGN	L1_CACHE_BYTES
 
 #define __read_mostly __section(".data..read_mostly")