diff options
| author | Sami Tolvanen <samitolvanen@google.com> | 2019-11-27 15:55:03 -0800 |
|---|---|---|
| committer | Herbert Xu <herbert@gondor.apana.org.au> | 2019-12-11 16:36:55 +0800 |
| commit | 6320a15e98301b67ff9ba8512e1e3a4033007851 (patch) | |
| tree | d2b2ba72d48d3ad3db3062a05a4713c0c8180e1f /arch/arm64/crypto/sha512-ce-glue.c | |
| parent | 11548f5a5747813ff84bed6f2ea01100053b0d8d (diff) | |
crypto: arm64/sha - fix function types
Instead of casting pointers to callback functions, add C wrappers
to avoid type mismatch failures with Control-Flow Integrity (CFI)
checking.
Signed-off-by: Sami Tolvanen <samitolvanen@google.com>
Reviewed-by: Ard Biesheuvel <ardb@kernel.org>
Reviewed-by: Eric Biggers <ebiggers@kernel.org>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
Diffstat (limited to 'arch/arm64/crypto/sha512-ce-glue.c')
| -rw-r--r-- | arch/arm64/crypto/sha512-ce-glue.c | 26 |
1 files changed, 14 insertions, 12 deletions
diff --git a/arch/arm64/crypto/sha512-ce-glue.c b/arch/arm64/crypto/sha512-ce-glue.c index 2369540040aa..dc890a719f54 100644 --- a/arch/arm64/crypto/sha512-ce-glue.c +++ b/arch/arm64/crypto/sha512-ce-glue.c @@ -29,16 +29,21 @@ asmlinkage void sha512_ce_transform(struct sha512_state *sst, u8 const *src, asmlinkage void sha512_block_data_order(u64 *digest, u8 const *src, int blocks); +static void __sha512_block_data_order(struct sha512_state *sst, u8 const *src, + int blocks) +{ + sha512_block_data_order(sst->state, src, blocks); +} + static int sha512_ce_update(struct shash_desc *desc, const u8 *data, unsigned int len) { if (!crypto_simd_usable()) return sha512_base_do_update(desc, data, len, - (sha512_block_fn *)sha512_block_data_order); + __sha512_block_data_order); kernel_neon_begin(); - sha512_base_do_update(desc, data, len, - (sha512_block_fn *)sha512_ce_transform); + sha512_base_do_update(desc, data, len, sha512_ce_transform); kernel_neon_end(); return 0; @@ -50,16 +55,14 @@ static int sha512_ce_finup(struct shash_desc *desc, const u8 *data, if (!crypto_simd_usable()) { if (len) sha512_base_do_update(desc, data, len, - (sha512_block_fn *)sha512_block_data_order); - sha512_base_do_finalize(desc, - (sha512_block_fn *)sha512_block_data_order); + __sha512_block_data_order); + sha512_base_do_finalize(desc, __sha512_block_data_order); return sha512_base_finish(desc, out); } kernel_neon_begin(); - sha512_base_do_update(desc, data, len, - (sha512_block_fn *)sha512_ce_transform); - sha512_base_do_finalize(desc, (sha512_block_fn *)sha512_ce_transform); + sha512_base_do_update(desc, data, len, sha512_ce_transform); + sha512_base_do_finalize(desc, sha512_ce_transform); kernel_neon_end(); return sha512_base_finish(desc, out); } @@ -67,13 +70,12 @@ static int sha512_ce_finup(struct shash_desc *desc, const u8 *data, static int sha512_ce_final(struct shash_desc *desc, u8 *out) { if (!crypto_simd_usable()) { - sha512_base_do_finalize(desc, - (sha512_block_fn *)sha512_block_data_order); + sha512_base_do_finalize(desc, __sha512_block_data_order); return sha512_base_finish(desc, out); } kernel_neon_begin(); - sha512_base_do_finalize(desc, (sha512_block_fn *)sha512_ce_transform); + sha512_base_do_finalize(desc, sha512_ce_transform); kernel_neon_end(); return sha512_base_finish(desc, out); } |