leandrof/linux
1
0
Fork 0
forked from Minki/linux
Code Issues Pull Requests Packages Projects Releases Wiki Activity

crypto: pcomp - Constify (de)compression parameters

Browse Source 
In testmgr, struct pcomp_testvec takes a non-const 'params' field, which is
pointed to a const deflate_comp_params or deflate_decomp_params object.  With
gcc-5 this incurs the following warnings:

In file included from ../crypto/testmgr.c:44:0:
../crypto/testmgr.h:28736:13: warning: initialization discards 'const' qualifier from pointer target type [-Wdiscarded-array-qualifiers]
   .params = &deflate_comp_params,
             ^
../crypto/testmgr.h:28748:13: warning: initialization discards 'const' qualifier from pointer target type [-Wdiscarded-array-qualifiers]
   .params = &deflate_comp_params,
             ^
../crypto/testmgr.h:28776:13: warning: initialization discards 'const' qualifier from pointer target type [-Wdiscarded-array-qualifiers]
   .params = &deflate_decomp_params,
             ^
../crypto/testmgr.h:28800:13: warning: initialization discards 'const' qualifier from pointer target type [-Wdiscarded-array-qualifiers]
   .params = &deflate_decomp_params,
             ^

Fix this by making the parameters pointer const and constifying the things
that use it.

Signed-off-by: David Howells <dhowells@redhat.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
This commit is contained in:
David Howells 2015-04-28 15:36:30 +01:00 committed by Herbert Xu
parent dcd93e8303
commit f94a359763
3 changed files with 7 additions and 7 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

2
crypto/testmgr.h
View File

@ -28591,7 +28591,7 @@ struct comp_testvec {
};
struct pcomp_testvec {
void *params;
const void *params;
unsigned int paramsize;
int inlen, outlen;
char input[COMP_BUF_SIZE];

4
crypto/zlib.c
View File

@ -78,7 +78,7 @@ static void zlib_exit(struct crypto_tfm *tfm)
}
static int zlib_compress_setup(struct crypto_pcomp *tfm, void *params,
static int zlib_compress_setup(struct crypto_pcomp *tfm, const void *params,
unsigned int len)
{
struct zlib_ctx *ctx = crypto_tfm_ctx(crypto_pcomp_tfm(tfm));
@ -209,7 +209,7 @@ static int zlib_compress_final(struct crypto_pcomp *tfm,
}
static int zlib_decompress_setup(struct crypto_pcomp *tfm, void *params,
static int zlib_decompress_setup(struct crypto_pcomp *tfm, const void *params,
unsigned int len)
{
struct zlib_ctx *ctx = crypto_tfm_ctx(crypto_pcomp_tfm(tfm));

8
include/crypto/compress.h
View File

@ -55,14 +55,14 @@ struct crypto_pcomp {
};
struct pcomp_alg {
int (*compress_setup)(struct crypto_pcomp *tfm, void *params,
int (*compress_setup)(struct crypto_pcomp *tfm, const void *params,
unsigned int len);
int (*compress_init)(struct crypto_pcomp *tfm);
int (*compress_update)(struct crypto_pcomp *tfm,
struct comp_request *req);
int (*compress_final)(struct crypto_pcomp *tfm,
struct comp_request *req);
int (*decompress_setup)(struct crypto_pcomp *tfm, void *params,
int (*decompress_setup)(struct crypto_pcomp *tfm, const void *params,
unsigned int len);
int (*decompress_init)(struct crypto_pcomp *tfm);
int (*decompress_update)(struct crypto_pcomp *tfm,
@ -97,7 +97,7 @@ static inline struct pcomp_alg *crypto_pcomp_alg(struct crypto_pcomp *tfm)
}
static inline int crypto_compress_setup(struct crypto_pcomp *tfm,
void *params, unsigned int len)
const void *params, unsigned int len)
{
return crypto_pcomp_alg(tfm)->compress_setup(tfm, params, len);
}
@ -120,7 +120,7 @@ static inline int crypto_compress_final(struct crypto_pcomp *tfm,
}
static inline int crypto_decompress_setup(struct crypto_pcomp *tfm,
void *params, unsigned int len)
const void *params, unsigned int len)
{
return crypto_pcomp_alg(tfm)->decompress_setup(tfm, params, len);
}