40 	struct nand_bch_control *nbc = chip->ecc.priv;  in nand_bch_calculate_ecc()  local
44 	bch_encode(nbc->bch, buf, chip->ecc.size, code);  in nand_bch_calculate_ecc()
48 		code[i] ^= nbc->eccmask[i];  in nand_bch_calculate_ecc()
66 	struct nand_bch_control *nbc = chip->ecc.priv;  in nand_bch_correct_data()  local
67 	unsigned int *errloc = nbc->errloc;  in nand_bch_correct_data()
70 	count = bch_decode(nbc->bch, NULL, chip->ecc.size, read_ecc, calc_ecc,  in nand_bch_correct_data()
110 	struct nand_bch_control *nbc = NULL;  in nand_bch_init()  local
129 	nbc = kzalloc(sizeof(*nbc), GFP_KERNEL);  in nand_bch_init()
130 	if (!nbc)  in nand_bch_init()
133 	nbc->bch = bch_init(m, t, 0, false);  in nand_bch_init()
134 	if (!nbc->bch)  in nand_bch_init()
138 	if (nbc->bch->ecc_bytes != eccbytes) {  in nand_bch_init()
140 			eccbytes, nbc->bch->ecc_bytes);  in nand_bch_init()
174 	nbc->eccmask = kzalloc(eccbytes, GFP_KERNEL);  in nand_bch_init()
175 	nbc->errloc = kmalloc_array(t, sizeof(*nbc->errloc), GFP_KERNEL);  in nand_bch_init()
176 	if (!nbc->eccmask || !nbc->errloc)  in nand_bch_init()
186 	bch_encode(nbc->bch, erased_page, eccsize, nbc->eccmask);  in nand_bch_init()
190 		nbc->eccmask[i] ^= 0xff;  in nand_bch_init()
195 	return nbc;  in nand_bch_init()
197 	nand_bch_free(nbc);  in nand_bch_init()
206 void nand_bch_free(struct nand_bch_control *nbc)  in nand_bch_free()  argument
208 	if (nbc) {  in nand_bch_free()
209 		bch_free(nbc->bch);  in nand_bch_free()
210 		kfree(nbc->errloc);  in nand_bch_free()
211 		kfree(nbc->eccmask);  in nand_bch_free()
212 		kfree(nbc);  in nand_bch_free()