fix unsupported maps warning message

[banditopazzo]

fix #1081

the proposed solution is to remove the warning log and instead provide more meaningful information directly within the error itself.

without considering the issue, right now we have just a warning log (which contains the important information), but this is misleading since it actually leads to an error. I believe this can cause confusion because the critical details should be part of the error itself. For this reason I consolidated all the relevant information into the error message.

Additionally, I updated the map_type field type in Unsupported error fromu32 to bpf_map_type, as an unsupported map has a specific map type, which is distinct from a generic u32 used in cases like the InvalidMapType error.

PS: Regarding InvalidMapType and other map-related errors, I believe they should also include the names of the maps.

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[tamird]

Mostly looks good. Please run CARGO_CFG_BPF_TARGET_ARCH=x86_64 cargo +nightly xtask public-api --bless --target x86_64-unknown-linux-gnu to regenerate the API file.

Reviewed 2 of 2 files at r1, all commit messages.
Reviewable status: all files reviewed, 1 unresolved discussion (waiting on @banditopazzo)

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aya/src/maps/mod.rs line 198 at r1 (raw file):

    /// Unsupported Map type
    #[error("the map {name} is of type {map_type:#?} which is currently unsupported in Aya, use `allow_unsupported_maps()` to load it anyways")]

can we make this a little shorter? seems way too long.

[mergify]

Hey @alessandrod, this pull request changes the Aya Public API and requires your review.

[tamird]

Reviewed 2 of 2 files at r2, all commit messages.
Reviewable status: all files reviewed, 1 unresolved discussion (waiting on @alessandrod and @banditopazzo)

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aya/src/maps/mod.rs line 198 at r2 (raw file):

    /// Unsupported Map type
    #[error("map {name} is of type {map_type:#?}, unsupported in Aya; use `allow_unsupported_maps()` to load it")]

Why do we need {:#?} rather than {:?}?

#[error("type of {name} ({map_type:?}) is unsupported; see `EbpfLoader::allow_unsupported_maps`")]

Code quote:

 #[error("map {name} is of type {map_type:#?}, unsupported in Aya; use `allow_unsupported_maps()` to load it")]

[tamird]

Reviewed 1 of 1 files at r3, all commit messages.
Reviewable status: complete! all files reviewed, all discussions resolved (waiting on @alessandrod)

[tamird]

Thanks!