user/sven/linux.git/include/linux/blk-crypto-profile.h, branch v6.3.12

blk-crypto: move internal only declarations to blk-crypto-internal.h

2022-11-21T18:39:05Z

blk_crypto_get_keyslot, blk_crypto_put_keyslot, __blk_crypto_evict_key and __blk_crypto_cfg_supported are only used internally by the blk-crypto code, so move the out of blk-crypto-profile.h, which is included by drivers that supply blk-crypto functionality. Signed-off-by: Christoph Hellwig Reviewed-by: Eric Biggers Link: https://lore.kernel.org/r/20221114042944.1009870-4-hch@lst.de Signed-off-by: Jens Axboe

blk-crypto: rename blk_keyslot_manager to blk_crypto_profile

2021-10-21T16:49:32Z

blk_keyslot_manager is misnamed because it doesn't necessarily manage keyslots. It actually does several different things: - Contains the crypto capabilities of the device. - Provides functions to control the inline encryption hardware. Originally these were just for programming/evicting keyslots; however, new functionality (hardware-wrapped keys) will require new functions here which are unrelated to keyslots. Moreover, device-mapper devices already (ab)use "keyslot_evict" to pass key eviction requests to their underlying devices even though device-mapper devices don't have any keyslots themselves (so it really should be "evict_key", not "keyslot_evict"). - Sometimes (but not always!) it manages keyslots. Originally it always did, but device-mapper devices don't have keyslots themselves, so they use a "passthrough keyslot manager" which doesn't actually manage keyslots. This hack works, but the terminology is unnatural. Also, some hardware doesn't have keyslots and thus also uses a "passthrough keyslot manager" (support for such hardware is yet to be upstreamed, but it will happen eventually). Let's stop having keyslot managers which don't actually manage keyslots. Instead, rename blk_keyslot_manager to blk_crypto_profile. This is a fairly big change, since for consistency it also has to update keyslot manager-related function names, variable names, and comments -- not just the actual struct name. However it's still a fairly straightforward change, as it doesn't change any actual functionality. Acked-by: Ulf Hansson # For MMC Reviewed-by: Mike Snitzer Reviewed-by: Martin K. Petersen Signed-off-by: Eric Biggers Link: https://lore.kernel.org/r/20211018180453.40441-4-ebiggers@kernel.org Signed-off-by: Jens Axboe

blk-crypto: rename keyslot-manager files to blk-crypto-profile

2021-10-21T16:49:32Z

In preparation for renaming struct blk_keyslot_manager to struct blk_crypto_profile, rename the keyslot-manager.h and keyslot-manager.c source files. Renaming these files separately before making a lot of changes to their contents makes it easier for git to understand that they were renamed. Acked-by: Ulf Hansson # For MMC Reviewed-by: Christoph Hellwig Reviewed-by: Mike Snitzer Reviewed-by: Martin K. Petersen Signed-off-by: Eric Biggers Link: https://lore.kernel.org/r/20211018180453.40441-3-ebiggers@kernel.org Signed-off-by: Jens Axboe