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author | Maxime Ripard <maxime@cerno.tech> | 2022-10-18 16:00:03 +0300 |
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committer | Maxime Ripard <maxime@cerno.tech> | 2022-10-18 16:00:03 +0300 |
commit | a140a6a2d5ec0329ad05cd3532a91ad0ce58dceb (patch) | |
tree | b2d44a1da423c53bd6c3ab3facd45ff5f2087ffd /crypto/algapi.c | |
parent | 28743e25fa1c867675bd8ff976eb92d4251f13a1 (diff) | |
parent | 9abf2313adc1ca1b6180c508c25f22f9395cc780 (diff) | |
download | linux-a140a6a2d5ec0329ad05cd3532a91ad0ce58dceb.tar.xz |
Merge drm/drm-next into drm-misc-next
Let's kick-off this release cycle.
Signed-off-by: Maxime Ripard <maxime@cerno.tech>
Diffstat (limited to 'crypto/algapi.c')
-rw-r--r-- | crypto/algapi.c | 71 |
1 files changed, 0 insertions, 71 deletions
diff --git a/crypto/algapi.c b/crypto/algapi.c index d1c99288af3e..5c69ff8e8fa5 100644 --- a/crypto/algapi.c +++ b/crypto/algapi.c @@ -997,77 +997,6 @@ void crypto_inc(u8 *a, unsigned int size) } EXPORT_SYMBOL_GPL(crypto_inc); -void __crypto_xor(u8 *dst, const u8 *src1, const u8 *src2, unsigned int len) -{ - int relalign = 0; - - if (!IS_ENABLED(CONFIG_HAVE_EFFICIENT_UNALIGNED_ACCESS)) { - int size = sizeof(unsigned long); - int d = (((unsigned long)dst ^ (unsigned long)src1) | - ((unsigned long)dst ^ (unsigned long)src2)) & - (size - 1); - - relalign = d ? 1 << __ffs(d) : size; - - /* - * If we care about alignment, process as many bytes as - * needed to advance dst and src to values whose alignments - * equal their relative alignment. This will allow us to - * process the remainder of the input using optimal strides. - */ - while (((unsigned long)dst & (relalign - 1)) && len > 0) { - *dst++ = *src1++ ^ *src2++; - len--; - } - } - - while (IS_ENABLED(CONFIG_64BIT) && len >= 8 && !(relalign & 7)) { - if (IS_ENABLED(CONFIG_HAVE_EFFICIENT_UNALIGNED_ACCESS)) { - u64 l = get_unaligned((u64 *)src1) ^ - get_unaligned((u64 *)src2); - put_unaligned(l, (u64 *)dst); - } else { - *(u64 *)dst = *(u64 *)src1 ^ *(u64 *)src2; - } - dst += 8; - src1 += 8; - src2 += 8; - len -= 8; - } - - while (len >= 4 && !(relalign & 3)) { - if (IS_ENABLED(CONFIG_HAVE_EFFICIENT_UNALIGNED_ACCESS)) { - u32 l = get_unaligned((u32 *)src1) ^ - get_unaligned((u32 *)src2); - put_unaligned(l, (u32 *)dst); - } else { - *(u32 *)dst = *(u32 *)src1 ^ *(u32 *)src2; - } - dst += 4; - src1 += 4; - src2 += 4; - len -= 4; - } - - while (len >= 2 && !(relalign & 1)) { - if (IS_ENABLED(CONFIG_HAVE_EFFICIENT_UNALIGNED_ACCESS)) { - u16 l = get_unaligned((u16 *)src1) ^ - get_unaligned((u16 *)src2); - put_unaligned(l, (u16 *)dst); - } else { - *(u16 *)dst = *(u16 *)src1 ^ *(u16 *)src2; - } - dst += 2; - src1 += 2; - src2 += 2; - len -= 2; - } - - while (len--) - *dst++ = *src1++ ^ *src2++; -} -EXPORT_SYMBOL_GPL(__crypto_xor); - unsigned int crypto_alg_extsize(struct crypto_alg *alg) { return alg->cra_ctxsize + |