From d266f44b5b517025249c4200eaa4bb892facc9a5 Mon Sep 17 00:00:00 2001 From: Alex Cope Date: Tue, 8 Nov 2016 17:16:58 -0800 Subject: crypto: gf128mul - remove dead gf128mul_64k_lle code This code is unlikely to be useful in the future because transforms don't know how often keys will be changed, new algorithms are unlikely to use lle representation, and tables should be replaced with carryless multiplication instructions when available. Signed-off-by: Alex Cope Signed-off-by: Herbert Xu --- crypto/gf128mul.c | 55 ------------------------------------------------------- 1 file changed, 55 deletions(-) (limited to 'crypto') diff --git a/crypto/gf128mul.c b/crypto/gf128mul.c index 5276607c72d04..57c85ddbd8521 100644 --- a/crypto/gf128mul.c +++ b/crypto/gf128mul.c @@ -263,48 +263,6 @@ EXPORT_SYMBOL(gf128mul_bbe); * t[1][BYTE] contains g*x^8*BYTE * .. * t[15][BYTE] contains g*x^120*BYTE */ -struct gf128mul_64k *gf128mul_init_64k_lle(const be128 *g) -{ - struct gf128mul_64k *t; - int i, j, k; - - t = kzalloc(sizeof(*t), GFP_KERNEL); - if (!t) - goto out; - - for (i = 0; i < 16; i++) { - t->t[i] = kzalloc(sizeof(*t->t[i]), GFP_KERNEL); - if (!t->t[i]) { - gf128mul_free_64k(t); - t = NULL; - goto out; - } - } - - t->t[0]->t[128] = *g; - for (j = 64; j > 0; j >>= 1) - gf128mul_x_lle(&t->t[0]->t[j], &t->t[0]->t[j + j]); - - for (i = 0;;) { - for (j = 2; j < 256; j += j) - for (k = 1; k < j; ++k) - be128_xor(&t->t[i]->t[j + k], - &t->t[i]->t[j], &t->t[i]->t[k]); - - if (++i >= 16) - break; - - for (j = 128; j > 0; j >>= 1) { - t->t[i]->t[j] = t->t[i - 1]->t[j]; - gf128mul_x8_lle(&t->t[i]->t[j]); - } - } - -out: - return t; -} -EXPORT_SYMBOL(gf128mul_init_64k_lle); - struct gf128mul_64k *gf128mul_init_64k_bbe(const be128 *g) { struct gf128mul_64k *t; @@ -357,19 +315,6 @@ void gf128mul_free_64k(struct gf128mul_64k *t) } EXPORT_SYMBOL(gf128mul_free_64k); -void gf128mul_64k_lle(be128 *a, struct gf128mul_64k *t) -{ - u8 *ap = (u8 *)a; - be128 r[1]; - int i; - - *r = t->t[0]->t[ap[0]]; - for (i = 1; i < 16; ++i) - be128_xor(r, r, &t->t[i]->t[ap[i]]); - *a = *r; -} -EXPORT_SYMBOL(gf128mul_64k_lle); - void gf128mul_64k_bbe(be128 *a, struct gf128mul_64k *t) { u8 *ap = (u8 *)a; -- cgit v1.2.3