Linux kernel mirror (for testing)
git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
kernel
os
linux
crypto: acomp - Use request flag helpers and add acomp_request_flags
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>
+22
-11
+16
-11
include/crypto/acompress.h
+16
-11
include/crypto/acompress.h
···
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/* Set this bit if destination is a folio. */
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#define CRYPTO_ACOMP_REQ_DST_FOLIO 0x00000040
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+
/* Private flags that should not be touched by the user. */
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#define CRYPTO_ACOMP_REQ_PRIVATE \
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(CRYPTO_ACOMP_REQ_SRC_VIRT | CRYPTO_ACOMP_REQ_SRC_NONDMA | \
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CRYPTO_ACOMP_REQ_DST_VIRT | CRYPTO_ACOMP_REQ_DST_NONDMA | \
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CRYPTO_ACOMP_REQ_SRC_FOLIO | CRYPTO_ACOMP_REQ_DST_FOLIO)
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+
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#define CRYPTO_ACOMP_DST_MAX 131072
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#define MAX_SYNC_COMP_REQSIZE 0
···
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static inline void acomp_request_set_tfm(struct acomp_req *req,
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struct crypto_acomp *tfm)
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{
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-
req->base.tfm = crypto_acomp_tfm(tfm);
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crypto_request_set_tfm(&req->base, crypto_acomp_tfm(tfm));
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}
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static inline bool acomp_is_async(struct crypto_acomp *tfm)
···
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return (void *)((char *)req + len);
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}
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static inline bool acomp_req_on_stack(struct acomp_req *req)
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{
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return crypto_req_on_stack(&req->base);
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}
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+
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/**
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* acomp_request_free() -- zeroize and free asynchronous (de)compression
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* request as well as the output buffer if allocated
···
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*/
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static inline void acomp_request_free(struct acomp_req *req)
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{
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if (!req || (req->base.flags & CRYPTO_TFM_REQ_ON_STACK))
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if (!req || acomp_req_on_stack(req))
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return;
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kfree_sensitive(req);
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}
···
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crypto_completion_t cmpl,
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void *data)
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{
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u32 keep = CRYPTO_ACOMP_REQ_SRC_VIRT | CRYPTO_ACOMP_REQ_SRC_NONDMA |
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CRYPTO_ACOMP_REQ_DST_VIRT | CRYPTO_ACOMP_REQ_DST_NONDMA |
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CRYPTO_ACOMP_REQ_SRC_FOLIO | CRYPTO_ACOMP_REQ_DST_FOLIO |
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CRYPTO_TFM_REQ_ON_STACK;
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-
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req->base.complete = cmpl;
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req->base.data = data;
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req->base.flags &= keep;
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req->base.flags |= flgs & ~keep;
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flgs &= ~CRYPTO_ACOMP_REQ_PRIVATE;
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flgs |= req->base.flags & CRYPTO_ACOMP_REQ_PRIVATE;
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crypto_request_set_callback(&req->base, flgs, cmpl, data);
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}
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/**