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author | Bartlomiej Zolnierkiewicz <b.zolnierkie@samsung.com> | 2017-12-29 17:49:13 +0100 |
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committer | Bartlomiej Zolnierkiewicz <b.zolnierkie@samsung.com> | 2017-12-29 17:49:13 +0100 |
commit | 59d9ddb192bc424cc53e52180478001af4fb99a4 (patch) | |
tree | 0abd8646ad5a39bf4993faf67e0200c6be6a5e13 /crypto/gf128mul.c | |
parent | 1ca96e9695b6c448befcd0abacaf473458f22d1c (diff) | |
parent | d5abe860ac298ebe723b37a6f63a5b2d404fca60 (diff) | |
download | linux-crypto-59d9ddb192bc424cc53e52180478001af4fb99a4.tar.gz linux-crypto-59d9ddb192bc424cc53e52180478001af4fb99a4.zip |
Merge tag 'v4.15-rc5' of git://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux into fbdev-for-next
Linux 4.15-rc5
Diffstat (limited to '')
-rw-r--r-- | crypto/gf128mul.c | 13 |
1 files changed, 13 insertions, 0 deletions
diff --git a/crypto/gf128mul.c b/crypto/gf128mul.c index dc012129..24e60195 100644 --- a/crypto/gf128mul.c +++ b/crypto/gf128mul.c @@ -156,6 +156,19 @@ static void gf128mul_x8_bbe(be128 *x) x->b = cpu_to_be64((b << 8) ^ _tt); } +void gf128mul_x8_ble(le128 *r, const le128 *x) +{ + u64 a = le64_to_cpu(x->a); + u64 b = le64_to_cpu(x->b); + + /* equivalent to gf128mul_table_be[b >> 63] (see crypto/gf128mul.c): */ + u64 _tt = gf128mul_table_be[a >> 56]; + + r->a = cpu_to_le64((a << 8) | (b >> 56)); + r->b = cpu_to_le64((b << 8) ^ _tt); +} +EXPORT_SYMBOL(gf128mul_x8_ble); + void gf128mul_lle(be128 *r, const be128 *b) { be128 p[8]; |