diff options
| -rw-r--r-- | crypto/poly1305_generic.c | 34 |
1 files changed, 15 insertions, 19 deletions
diff --git a/crypto/poly1305_generic.c b/crypto/poly1305_generic.c index 2df9835d..b1c2d57 100644 --- a/crypto/poly1305_generic.c +++ b/crypto/poly1305_generic.c @@ -17,6 +17,7 @@ #include <linux/crypto.h> #include <linux/kernel.h> #include <linux/module.h> +#include <asm/unaligned.h> static inline u64 mlt(u64 a, u64 b) { @@ -33,11 +34,6 @@ static inline u32 and(u32 v, u32 mask) return v & mask; } -static inline u32 le32_to_cpuvp(const void *p) -{ - return le32_to_cpup(p); -} - int crypto_poly1305_init(struct shash_desc *desc) { struct poly1305_desc_ctx *dctx = shash_desc_ctx(desc); @@ -65,19 +61,19 @@ EXPORT_SYMBOL_GPL(crypto_poly1305_setkey); static void poly1305_setrkey(struct poly1305_desc_ctx *dctx, const u8 *key) { /* r &= 0xffffffc0ffffffc0ffffffc0fffffff */ - dctx->r[0] = (le32_to_cpuvp(key + 0) >> 0) & 0x3ffffff; - dctx->r[1] = (le32_to_cpuvp(key + 3) >> 2) & 0x3ffff03; - dctx->r[2] = (le32_to_cpuvp(key + 6) >> 4) & 0x3ffc0ff; - dctx->r[3] = (le32_to_cpuvp(key + 9) >> 6) & 0x3f03fff; - dctx->r[4] = (le32_to_cpuvp(key + 12) >> 8) & 0x00fffff; + dctx->r[0] = (get_unaligned_le32(key + 0) >> 0) & 0x3ffffff; + dctx->r[1] = (get_unaligned_le32(key + 3) >> 2) & 0x3ffff03; + dctx->r[2] = (get_unaligned_le32(key + 6) >> 4) & 0x3ffc0ff; + dctx->r[3] = (get_unaligned_le32(key + 9) >> 6) & 0x3f03fff; + dctx->r[4] = (get_unaligned_le32(key + 12) >> 8) & 0x00fffff; } static void poly1305_setskey(struct poly1305_desc_ctx *dctx, const u8 *key) { - dctx->s[0] = le32_to_cpuvp(key + 0); - dctx->s[1] = le32_to_cpuvp(key + 4); - dctx->s[2] = le32_to_cpuvp(key + 8); - dctx->s[3] = le32_to_cpuvp(key + 12); + dctx->s[0] = get_unaligned_le32(key + 0); + dctx->s[1] = get_unaligned_le32(key + 4); + dctx->s[2] = get_unaligned_le32(key + 8); + dctx->s[3] = get_unaligned_le32(key + 12); } unsigned int crypto_poly1305_setdesckey(struct poly1305_desc_ctx *dctx, @@ -137,11 +133,11 @@ static unsigned int poly1305_blocks(struct poly1305_desc_ctx *dctx, while (likely(srclen >= POLY1305_BLOCK_SIZE)) { /* h += m[i] */ - h0 += (le32_to_cpuvp(src + 0) >> 0) & 0x3ffffff; - h1 += (le32_to_cpuvp(src + 3) >> 2) & 0x3ffffff; - h2 += (le32_to_cpuvp(src + 6) >> 4) & 0x3ffffff; - h3 += (le32_to_cpuvp(src + 9) >> 6) & 0x3ffffff; - h4 += (le32_to_cpuvp(src + 12) >> 8) | hibit; + h0 += (get_unaligned_le32(src + 0) >> 0) & 0x3ffffff; + h1 += (get_unaligned_le32(src + 3) >> 2) & 0x3ffffff; + h2 += (get_unaligned_le32(src + 6) >> 4) & 0x3ffffff; + h3 += (get_unaligned_le32(src + 9) >> 6) & 0x3ffffff; + h4 += (get_unaligned_le32(src + 12) >> 8) | hibit; /* h *= r */ d0 = mlt(h0, r0) + mlt(h1, s4) + mlt(h2, s3) + |
