48 		      size_t data_length, const u8 *ecc, size_t ecc_length)  in verify_bch()  argument
67 	int errors = decode_bch(bch, data, data_length, ecc, NULL, NULL,  in verify_bch()
80 				 * n-th error located in ecc (no need for data  in verify_bch()
118 	 * | header block       | data block     | ...  | ecc block          |  in vpd_reader()
122 	 * | id   | magic | ecc |                       | ...  | ecc         |  in vpd_reader()
131 	 * 4 byte ECC located at the end of the header block.  A successful  in vpd_reader()
150 	/* Check that ECC header fits. */  in vpd_reader()
154 	/* Validate ECC block. */  in vpd_reader()
155 	u8 *ecc = &data[offset];  in vpd_reader()  local
157 	if (ecc[ID] != ECC_BLOCK_ID || ecc[LEN] < BLOCK_SIZE ||  in vpd_reader()
158 	    ecc[LEN] + offset > size ||  in vpd_reader()
159 	    ecc[LEN] - BLOCK_SIZE != size_bits / 8 || ecc[VER] != 1 ||  in vpd_reader()
160 	    ecc[TYP] != 1)  in vpd_reader()
164 	 * Use the header block to locate the ECC block and verify the data  in vpd_reader()
165 	 * blocks [2] against the ecc block ECC.  in vpd_reader()
170 			 ecc[LEN] - BLOCK_SIZE);  in vpd_reader()
174 	/* Stop after ECC.  Ignore possible zero padding. */  in vpd_reader()