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scsi: ufs: crypto: Add ufs_hba_from_crypto_profile()

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Add a helper function that encapsulates a container_of expression.  For now
there are two users but soon there will be more.

Tested-by: Bartosz Golaszewski <bartosz.golaszewski@linaro.org> # sm8650
Signed-off-by: Eric Biggers <ebiggers@google.com>
Link: https://lore.kernel.org/r/20241213041958.202565-3-ebiggers@kernel.org
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
This commit is contained in:
Eric Biggers 2024-12-12 20:19:45 -08:00 committed by Martin K. Petersen
parent 7a0905caf5
commit 75d0c649ec
2 changed files with 10 additions and 4 deletions
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6
drivers/ufs/core/ufshcd-crypto.c
View File

@ -52,8 +52,7 @@ static int ufshcd_crypto_keyslot_program(struct blk_crypto_profile *profile,
const struct blk_crypto_key *key,
unsigned int slot)
{
struct ufs_hba *hba =
container_of(profile, struct ufs_hba, crypto_profile);
struct ufs_hba *hba = ufs_hba_from_crypto_profile(profile);
const union ufs_crypto_cap_entry *ccap_array = hba->crypto_cap_array;
const struct ufs_crypto_alg_entry *alg =
&ufs_crypto_algs[key->crypto_cfg.crypto_mode];
@ -99,8 +98,7 @@ static int ufshcd_crypto_keyslot_evict(struct blk_crypto_profile *profile,
const struct blk_crypto_key *key,
unsigned int slot)
{
struct ufs_hba *hba =
container_of(profile, struct ufs_hba, crypto_profile);
struct ufs_hba *hba = ufs_hba_from_crypto_profile(profile);
/*
* Clear the crypto cfg on the device. Clearing CFGE
* might not be sufficient, so just clear the entire cfg.

8
include/ufs/ufshcd.h
View File

@ -1211,6 +1211,14 @@ static inline size_t ufshcd_sg_entry_size(const struct ufs_hba *hba)
({ (void)(hba); BUILD_BUG_ON(sg_entry_size != sizeof(struct ufshcd_sg_entry)); })
#endif
#ifdef CONFIG_SCSI_UFS_CRYPTO
static inline struct ufs_hba *
ufs_hba_from_crypto_profile(struct blk_crypto_profile *profile)
{
return container_of(profile, struct ufs_hba, crypto_profile);
}
#endif
static inline size_t ufshcd_get_ucd_size(const struct ufs_hba *hba)
{
return sizeof(struct utp_transfer_cmd_desc) + SG_ALL * ufshcd_sg_entry_size(hba);