20  * over 1 KB of stack if we inline the round calculation into the loop
47 static SHA3_INLINE void keccakf_round(u64 st[25])  in keccakf_round()
52 	bc[0] = st[0] ^ st[5] ^ st[10] ^ st[15] ^ st[20];  in keccakf_round()
53 	bc[1] = st[1] ^ st[6] ^ st[11] ^ st[16] ^ st[21];  in keccakf_round()
54 	bc[2] = st[2] ^ st[7] ^ st[12] ^ st[17] ^ st[22];  in keccakf_round()
55 	bc[3] = st[3] ^ st[8] ^ st[13] ^ st[18] ^ st[23];  in keccakf_round()
56 	bc[4] = st[4] ^ st[9] ^ st[14] ^ st[19] ^ st[24];  in keccakf_round()
58 	t[0] = bc[4] ^ rol64(bc[1], 1);  in keccakf_round()
59 	t[1] = bc[0] ^ rol64(bc[2], 1);  in keccakf_round()
60 	t[2] = bc[1] ^ rol64(bc[3], 1);  in keccakf_round()
61 	t[3] = bc[2] ^ rol64(bc[4], 1);  in keccakf_round()
62 	t[4] = bc[3] ^ rol64(bc[0], 1);  in keccakf_round()
64 	st[0] ^= t[0];  in keccakf_round()
67 	tt = st[1];  in keccakf_round()
68 	st[ 1] = rol64(st[ 6] ^ t[1], 44);  in keccakf_round()
69 	st[ 6] = rol64(st[ 9] ^ t[4], 20);  in keccakf_round()
70 	st[ 9] = rol64(st[22] ^ t[2], 61);  in keccakf_round()
71 	st[22] = rol64(st[14] ^ t[4], 39);  in keccakf_round()
72 	st[14] = rol64(st[20] ^ t[0], 18);  in keccakf_round()
73 	st[20] = rol64(st[ 2] ^ t[2], 62);  in keccakf_round()
74 	st[ 2] = rol64(st[12] ^ t[2], 43);  in keccakf_round()
75 	st[12] = rol64(st[13] ^ t[3], 25);  in keccakf_round()
76 	st[13] = rol64(st[19] ^ t[4],  8);  in keccakf_round()
77 	st[19] = rol64(st[23] ^ t[3], 56);  in keccakf_round()
78 	st[23] = rol64(st[15] ^ t[0], 41);  in keccakf_round()
79 	st[15] = rol64(st[ 4] ^ t[4], 27);  in keccakf_round()
80 	st[ 4] = rol64(st[24] ^ t[4], 14);  in keccakf_round()
81 	st[24] = rol64(st[21] ^ t[1],  2);  in keccakf_round()
82 	st[21] = rol64(st[ 8] ^ t[3], 55);  in keccakf_round()
83 	st[ 8] = rol64(st[16] ^ t[1], 45);  in keccakf_round()
84 	st[16] = rol64(st[ 5] ^ t[0], 36);  in keccakf_round()
85 	st[ 5] = rol64(st[ 3] ^ t[3], 28);  in keccakf_round()
86 	st[ 3] = rol64(st[18] ^ t[3], 21);  in keccakf_round()
87 	st[18] = rol64(st[17] ^ t[2], 15);  in keccakf_round()
88 	st[17] = rol64(st[11] ^ t[1], 10);  in keccakf_round()
89 	st[11] = rol64(st[ 7] ^ t[2],  6);  in keccakf_round()
90 	st[ 7] = rol64(st[10] ^ t[0],  3);  in keccakf_round()
91 	st[10] = rol64(    tt ^ t[1],  1);  in keccakf_round()
94 	bc[ 0] = ~st[ 1] & st[ 2];  in keccakf_round()
95 	bc[ 1] = ~st[ 2] & st[ 3];  in keccakf_round()
96 	bc[ 2] = ~st[ 3] & st[ 4];  in keccakf_round()
97 	bc[ 3] = ~st[ 4] & st[ 0];  in keccakf_round()
98 	bc[ 4] = ~st[ 0] & st[ 1];  in keccakf_round()
99 	st[ 0] ^= bc[ 0];  in keccakf_round()
100 	st[ 1] ^= bc[ 1];  in keccakf_round()
101 	st[ 2] ^= bc[ 2];  in keccakf_round()
102 	st[ 3] ^= bc[ 3];  in keccakf_round()
103 	st[ 4] ^= bc[ 4];  in keccakf_round()
105 	bc[ 0] = ~st[ 6] & st[ 7];  in keccakf_round()
106 	bc[ 1] = ~st[ 7] & st[ 8];  in keccakf_round()
107 	bc[ 2] = ~st[ 8] & st[ 9];  in keccakf_round()
108 	bc[ 3] = ~st[ 9] & st[ 5];  in keccakf_round()
109 	bc[ 4] = ~st[ 5] & st[ 6];  in keccakf_round()
110 	st[ 5] ^= bc[ 0];  in keccakf_round()
111 	st[ 6] ^= bc[ 1];  in keccakf_round()
112 	st[ 7] ^= bc[ 2];  in keccakf_round()
113 	st[ 8] ^= bc[ 3];  in keccakf_round()
114 	st[ 9] ^= bc[ 4];  in keccakf_round()
116 	bc[ 0] = ~st[11] & st[12];  in keccakf_round()
117 	bc[ 1] = ~st[12] & st[13];  in keccakf_round()
118 	bc[ 2] = ~st[13] & st[14];  in keccakf_round()
119 	bc[ 3] = ~st[14] & st[10];  in keccakf_round()
120 	bc[ 4] = ~st[10] & st[11];  in keccakf_round()
121 	st[10] ^= bc[ 0];  in keccakf_round()
122 	st[11] ^= bc[ 1];  in keccakf_round()
123 	st[12] ^= bc[ 2];  in keccakf_round()
124 	st[13] ^= bc[ 3];  in keccakf_round()
125 	st[14] ^= bc[ 4];  in keccakf_round()
127 	bc[ 0] = ~st[16] & st[17];  in keccakf_round()
128 	bc[ 1] = ~st[17] & st[18];  in keccakf_round()
129 	bc[ 2] = ~st[18] & st[19];  in keccakf_round()
130 	bc[ 3] = ~st[19] & st[15];  in keccakf_round()
131 	bc[ 4] = ~st[15] & st[16];  in keccakf_round()
132 	st[15] ^= bc[ 0];  in keccakf_round()
133 	st[16] ^= bc[ 1];  in keccakf_round()
134 	st[17] ^= bc[ 2];  in keccakf_round()
135 	st[18] ^= bc[ 3];  in keccakf_round()
136 	st[19] ^= bc[ 4];  in keccakf_round()
138 	bc[ 0] = ~st[21] & st[22];  in keccakf_round()
139 	bc[ 1] = ~st[22] & st[23];  in keccakf_round()
140 	bc[ 2] = ~st[23] & st[24];  in keccakf_round()
141 	bc[ 3] = ~st[24] & st[20];  in keccakf_round()
142 	bc[ 4] = ~st[20] & st[21];  in keccakf_round()
143 	st[20] ^= bc[ 0];  in keccakf_round()
144 	st[21] ^= bc[ 1];  in keccakf_round()
145 	st[22] ^= bc[ 2];  in keccakf_round()
146 	st[23] ^= bc[ 3];  in keccakf_round()
147 	st[24] ^= bc[ 4];  in keccakf_round()
150 static void keccakf(u64 st[25])  in keccakf()
155 		keccakf_round(st);  in keccakf()
157 		st[0] ^= keccakf_rndc[round];  in keccakf()
170 	memset(sctx->st, 0, sizeof(sctx->st));  in crypto_sha3_init()
185 	if ((sctx->partial + len) > (sctx->rsiz - 1)) {  in crypto_sha3_update()
197 				sctx->st[i] ^= get_unaligned_le64(src + 8 * i);  in crypto_sha3_update()
198 			keccakf(sctx->st);  in crypto_sha3_update()
202 		} while (done + (sctx->rsiz - 1) < len);  in crypto_sha3_update()
222 	sctx->buf[sctx->rsiz - 1] |= 0x80;  in crypto_sha3_final()
225 		sctx->st[i] ^= get_unaligned_le64(sctx->buf + 8 * i);  in crypto_sha3_final()
227 	keccakf(sctx->st);  in crypto_sha3_final()
230 		put_unaligned_le64(sctx->st[i], digest++);  in crypto_sha3_final()
233 		put_unaligned_le32(sctx->st[i], (__le32 *)digest);  in crypto_sha3_final()