From: Eric Biggers <ebiggers@xxxxxxxxxx>
Add a helper function that encapsulates a container_of expression. For
now there are two users but soon there will be more.
Signed-off-by: Eric Biggers <ebiggers@xxxxxxxxxx>
---
drivers/ufs/core/ufshcd-crypto.c | 6 ++----
include/ufs/ufshcd.h | 8 ++++++++
2 files changed, 10 insertions(+), 4 deletions(-)
diff --git a/drivers/ufs/core/ufshcd-crypto.c b/drivers/ufs/core/ufshcd-crypto.c
index a714dad82cd1f..0cb425ef618e8 100644
--- a/drivers/ufs/core/ufshcd-crypto.c
+++ b/drivers/ufs/core/ufshcd-crypto.c
@@ -50,12 +50,11 @@ static int ufshcd_program_key(struct ufs_hba *hba,
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];
u8 data_unit_mask = key->crypto_cfg.data_unit_size / 512;
int i;
@@ -97,12 +96,11 @@ static int ufshcd_crypto_keyslot_program(struct blk_crypto_profile *profile,
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.
*/
union ufs_crypto_cfg_entry cfg = {};
diff --git a/include/ufs/ufshcd.h b/include/ufs/ufshcd.h
index d7aca9e61684f..91b4f95d6c8ea 100644
--- a/include/ufs/ufshcd.h
+++ b/include/ufs/ufshcd.h
@@ -1200,10 +1200,18 @@ static inline size_t ufshcd_sg_entry_size(const struct ufs_hba *hba)
#define ufshcd_set_sg_entry_size(hba, sg_entry_size) \
({ (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);
}
base-commit: f486c8aa16b8172f63bddc70116a0c897a7f3f02
--
2.47.1
