On Fri, Nov 04, 2022 at 06:46:21AM +0100, Christoph Hellwig wrote:
> Add a blk_crypto_cfg_supported helper that wraps
> __blk_crypto_cfg_supported to retreive the crypto_profile from the
> request queue.
>
> Signed-off-by: Christoph Hellwig <hch@xxxxxx>
> ---
> block/blk-crypto-profile.c | 7 +++++++
> block/blk-crypto.c | 13 ++++---------
> fs/crypto/inline_crypt.c | 4 +---
> include/linux/blk-crypto-profile.h | 2 ++
> 4 files changed, 14 insertions(+), 12 deletions(-)
>
> diff --git a/block/blk-crypto-profile.c b/block/blk-crypto-profile.c
> index 96c511967386d..e8a0a3457fa29 100644
> --- a/block/blk-crypto-profile.c
> +++ b/block/blk-crypto-profile.c
> @@ -353,6 +353,13 @@ bool __blk_crypto_cfg_supported(struct blk_crypto_profile *profile,
> return true;
> }
>
> +bool blk_crypto_cfg_supported(struct block_device *bdev,
> + const struct blk_crypto_config *cfg)
> +{
> + return __blk_crypto_cfg_supported(bdev_get_queue(bdev)->crypto_profile,
> + cfg);
> +}
I think this part is too confusing, because there's already a function
blk_crypto_config_supported() which does something slightly different.
How about calling this blk_crypto_config_supported_natively() instead? It's
kind of long, but it's much clearer.
Also, it should be defined in blk-crypto.c, next to
blk_crypto_config_supported(), and not in blk-crypto-profile.c.
(And declared in blk-crypto.h, not blk-crypto-profile.h.)
This would also make it so that fs/crypto/inline_crypt.c could go back to
including blk-crypto.h instead of blk-crypto-profile.h. blk-crypto.h is
supposed to be the interface to upper layers, not blk-crypto-profile.h.
So, something like this:
bool blk_crypto_config_supported(struct block_device *bdev,
const struct blk_crypto_config *cfg)
{
return IS_ENABLED(CONFIG_BLK_INLINE_ENCRYPTION_FALLBACK) ||
blk_crypto_config_supported_natively(bdev, cfg);
}
bool blk_crypto_config_supported_natively(struct block_device *bdev,
const struct blk_crypto_config *cfg)
{
return __blk_crypto_cfg_supported(bdev_get_queue(bdev)->crypto_profile,
cfg);
}
- Eric
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