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author | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-05-18 17:35:05 +0000 |
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committer | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-05-18 17:39:31 +0000 |
commit | 85c675d0d09a45a135bddd15d7b385f8758c32fb (patch) | |
tree | 76267dbc9b9a130337be3640948fe397b04ac629 /arch/sparc/crypto | |
parent | Adding upstream version 6.6.15. (diff) | |
download | linux-85c675d0d09a45a135bddd15d7b385f8758c32fb.tar.xz linux-85c675d0d09a45a135bddd15d7b385f8758c32fb.zip |
Adding upstream version 6.7.7.upstream/6.7.7
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
Diffstat (limited to 'arch/sparc/crypto')
-rw-r--r-- | arch/sparc/crypto/crc32c_glue.c | 45 |
1 files changed, 24 insertions, 21 deletions
diff --git a/arch/sparc/crypto/crc32c_glue.c b/arch/sparc/crypto/crc32c_glue.c index 82efb7f81c..688db0dcb9 100644 --- a/arch/sparc/crypto/crc32c_glue.c +++ b/arch/sparc/crypto/crc32c_glue.c @@ -20,6 +20,7 @@ #include <asm/pstate.h> #include <asm/elf.h> +#include <asm/unaligned.h> #include "opcodes.h" @@ -35,7 +36,7 @@ static int crc32c_sparc64_setkey(struct crypto_shash *hash, const u8 *key, if (keylen != sizeof(u32)) return -EINVAL; - *mctx = le32_to_cpup((__le32 *)key); + *mctx = get_unaligned_le32(key); return 0; } @@ -51,18 +52,26 @@ static int crc32c_sparc64_init(struct shash_desc *desc) extern void crc32c_sparc64(u32 *crcp, const u64 *data, unsigned int len); -static void crc32c_compute(u32 *crcp, const u64 *data, unsigned int len) +static u32 crc32c_compute(u32 crc, const u8 *data, unsigned int len) { - unsigned int asm_len; - - asm_len = len & ~7U; - if (asm_len) { - crc32c_sparc64(crcp, data, asm_len); - data += asm_len / 8; - len -= asm_len; + unsigned int n = -(uintptr_t)data & 7; + + if (n) { + /* Data isn't 8-byte aligned. Align it. */ + n = min(n, len); + crc = __crc32c_le(crc, data, n); + data += n; + len -= n; + } + n = len & ~7U; + if (n) { + crc32c_sparc64(&crc, (const u64 *)data, n); + data += n; + len -= n; } if (len) - *crcp = __crc32c_le(*crcp, (const unsigned char *) data, len); + crc = __crc32c_le(crc, data, len); + return crc; } static int crc32c_sparc64_update(struct shash_desc *desc, const u8 *data, @@ -70,19 +79,14 @@ static int crc32c_sparc64_update(struct shash_desc *desc, const u8 *data, { u32 *crcp = shash_desc_ctx(desc); - crc32c_compute(crcp, (const u64 *) data, len); - + *crcp = crc32c_compute(*crcp, data, len); return 0; } -static int __crc32c_sparc64_finup(u32 *crcp, const u8 *data, unsigned int len, - u8 *out) +static int __crc32c_sparc64_finup(const u32 *crcp, const u8 *data, + unsigned int len, u8 *out) { - u32 tmp = *crcp; - - crc32c_compute(&tmp, (const u64 *) data, len); - - *(__le32 *) out = ~cpu_to_le32(tmp); + put_unaligned_le32(~crc32c_compute(*crcp, data, len), out); return 0; } @@ -96,7 +100,7 @@ static int crc32c_sparc64_final(struct shash_desc *desc, u8 *out) { u32 *crcp = shash_desc_ctx(desc); - *(__le32 *) out = ~cpu_to_le32p(crcp); + put_unaligned_le32(~*crcp, out); return 0; } @@ -135,7 +139,6 @@ static struct shash_alg alg = { .cra_flags = CRYPTO_ALG_OPTIONAL_KEY, .cra_blocksize = CHKSUM_BLOCK_SIZE, .cra_ctxsize = sizeof(u32), - .cra_alignmask = 7, .cra_module = THIS_MODULE, .cra_init = crc32c_sparc64_cra_init, } |