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crypto: acomp - Use request flag helpers and add acomp_request_flags

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Use the newly added request flag helpers to manage the request
flags.

Also add acomp_request_flags which lets bottom-level users to
access the request flags without the bits private to the acomp
API.

Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
This commit is contained in:
Herbert Xu 2025-04-07 18:02:53 +08:00
parent 1451e3e561
commit b04b395f7a
2 changed files with 22 additions and 11 deletions
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27
include/crypto/acompress.h
View file

@ -38,6 +38,12 @@
/* Set this bit if destination is a folio. */ /* Set this bit if destination is a folio. */
#define CRYPTO_ACOMP_REQ_DST_FOLIO 0x00000040 #define CRYPTO_ACOMP_REQ_DST_FOLIO 0x00000040
/* Private flags that should not be touched by the user. */
#define CRYPTO_ACOMP_REQ_PRIVATE \
(CRYPTO_ACOMP_REQ_SRC_VIRT | CRYPTO_ACOMP_REQ_SRC_NONDMA | \
CRYPTO_ACOMP_REQ_DST_VIRT | CRYPTO_ACOMP_REQ_DST_NONDMA | \
CRYPTO_ACOMP_REQ_SRC_FOLIO | CRYPTO_ACOMP_REQ_DST_FOLIO)
#define CRYPTO_ACOMP_DST_MAX 131072 #define CRYPTO_ACOMP_DST_MAX 131072
#define MAX_SYNC_COMP_REQSIZE 0 #define MAX_SYNC_COMP_REQSIZE 0
@ -201,7 +207,7 @@ static inline unsigned int crypto_acomp_reqsize(struct crypto_acomp *tfm)
static inline void acomp_request_set_tfm(struct acomp_req *req, static inline void acomp_request_set_tfm(struct acomp_req *req,
struct crypto_acomp *tfm) struct crypto_acomp *tfm)
{ {
req->base.tfm = crypto_acomp_tfm(tfm); crypto_request_set_tfm(&req->base, crypto_acomp_tfm(tfm));
} }
static inline bool acomp_is_async(struct crypto_acomp *tfm) static inline bool acomp_is_async(struct crypto_acomp *tfm)
@ -298,6 +304,11 @@ static inline void *acomp_request_extra(struct acomp_req *req)
return (void *)((char *)req + len); return (void *)((char *)req + len);
} }
static inline bool acomp_req_on_stack(struct acomp_req *req)
{
return crypto_req_on_stack(&req->base);
}
/** /**
* acomp_request_free() -- zeroize and free asynchronous (de)compression * acomp_request_free() -- zeroize and free asynchronous (de)compression
* request as well as the output buffer if allocated * request as well as the output buffer if allocated
@ -307,7 +318,7 @@ static inline void *acomp_request_extra(struct acomp_req *req)
*/ */
static inline void acomp_request_free(struct acomp_req *req) static inline void acomp_request_free(struct acomp_req *req)
{ {
if (!req || (req->base.flags & CRYPTO_TFM_REQ_ON_STACK)) if (!req || acomp_req_on_stack(req))
return; return;
kfree_sensitive(req); kfree_sensitive(req);
} }
@ -328,15 +339,9 @@ static inline void acomp_request_set_callback(struct acomp_req *req,
crypto_completion_t cmpl, crypto_completion_t cmpl,
void *data) void *data)
{ {
u32 keep = CRYPTO_ACOMP_REQ_SRC_VIRT | CRYPTO_ACOMP_REQ_SRC_NONDMA | flgs &= ~CRYPTO_ACOMP_REQ_PRIVATE;
CRYPTO_ACOMP_REQ_DST_VIRT | CRYPTO_ACOMP_REQ_DST_NONDMA | flgs |= req->base.flags & CRYPTO_ACOMP_REQ_PRIVATE;
CRYPTO_ACOMP_REQ_SRC_FOLIO | CRYPTO_ACOMP_REQ_DST_FOLIO | crypto_request_set_callback(&req->base, flgs, cmpl, data);
CRYPTO_TFM_REQ_ON_STACK;
req->base.complete = cmpl;
req->base.data = data;
req->base.flags &= keep;
req->base.flags |= flgs & ~keep;
} }
/** /**

6
include/crypto/internal/acompress.h
View file

@ -229,4 +229,10 @@ static inline bool acomp_walk_more_src(const struct acomp_walk *walk, int cur)
{ {
return walk->slen != cur; return walk->slen != cur;
} }
static inline u32 acomp_request_flags(struct acomp_req *req)
{
return crypto_request_flags(&req->base) & ~CRYPTO_ACOMP_REQ_PRIVATE;
}
#endif #endif