56 	struct nand_bch_control *nbc = chip->ecc.priv;  in nand_bch_calculate_ecc()  local
60 	encode_bch(nbc->bch, buf, chip->ecc.size, code);  in nand_bch_calculate_ecc()
64 		code[i] ^= nbc->eccmask[i];  in nand_bch_calculate_ecc()
83 	struct nand_bch_control *nbc = chip->ecc.priv;  in nand_bch_correct_data()  local
84 	unsigned int *errloc = nbc->errloc;  in nand_bch_correct_data()
87 	count = decode_bch(nbc->bch, NULL, chip->ecc.size, read_ecc, calc_ecc,  in nand_bch_correct_data()
132 	struct nand_bch_control *nbc = NULL;  in nand_bch_init()  local
143 	nbc = kzalloc(sizeof(*nbc), GFP_KERNEL);  in nand_bch_init()
144 	if (!nbc)  in nand_bch_init()
147 	nbc->bch = init_bch(m, t, 0);  in nand_bch_init()
148 	if (!nbc->bch)  in nand_bch_init()
152 	if (nbc->bch->ecc_bytes != eccbytes) {  in nand_bch_init()
154 		       eccbytes, nbc->bch->ecc_bytes);  in nand_bch_init()
170 		layout = &nbc->ecclayout;  in nand_bch_init()
200 	nbc->eccmask = kmalloc(eccbytes, GFP_KERNEL);  in nand_bch_init()
201 	nbc->errloc = kmalloc(t*sizeof(*nbc->errloc), GFP_KERNEL);  in nand_bch_init()
202 	if (!nbc->eccmask || !nbc->errloc)  in nand_bch_init()
212 	memset(nbc->eccmask, 0, eccbytes);  in nand_bch_init()
213 	encode_bch(nbc->bch, erased_page, eccsize, nbc->eccmask);  in nand_bch_init()
217 		nbc->eccmask[i] ^= 0xff;  in nand_bch_init()
219 	return nbc;  in nand_bch_init()
221 	nand_bch_free(nbc);  in nand_bch_init()
230 void nand_bch_free(struct nand_bch_control *nbc)  in nand_bch_free()  argument
232 	if (nbc) {  in nand_bch_free()
233 		free_bch(nbc->bch);  in nand_bch_free()
234 		kfree(nbc->errloc);  in nand_bch_free()
235 		kfree(nbc->eccmask);  in nand_bch_free()
236 		kfree(nbc);  in nand_bch_free()