[PATCH] mtd: rawnand: marvell: prevent harmless warnings

[Miquel Raynal <miquel.raynal@xxxxxxxxxxx>]

Since the addition of WARN_ON() in nand_subop_get_data/addr_len()
helpers, this driver will produce harmless warnings (mostly at probe)
just because it always called the *_data_len() helper in the parsing
function (even on non-data instructions, where this value is
meaningless and unneeded.

Fix these warnings by deriving the length only when it is relevant.

Fixes: 760c435e0f85 ("mtd: rawnand: make subop helpers return unsigned values")
Cc: stable@xxxxxxxxxxxxxxx
Signed-off-by: Miquel Raynal <miquel.raynal@xxxxxxxxxxx>
---
 drivers/mtd/nand/raw/marvell_nand.c | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/drivers/mtd/nand/raw/marvell_nand.c b/drivers/mtd/nand/raw/marvell_nand.c
index 7af4d6213ee5..bc2ef5209783 100644
--- a/drivers/mtd/nand/raw/marvell_nand.c
+++ b/drivers/mtd/nand/raw/marvell_nand.c
@@ -1547,7 +1547,7 @@ static void marvell_nfc_parse_instructions(struct nand_chip *chip,
 	for (op_id = 0; op_id < subop->ninstrs; op_id++) {
 		unsigned int offset, naddrs;
 		const u8 *addrs;
-		int len = nand_subop_get_data_len(subop, op_id);
+		int len;
 
 		instr = &subop->instrs[op_id];
 
@@ -1593,6 +1593,7 @@ static void marvell_nfc_parse_instructions(struct nand_chip *chip,
 				nfc_op->ndcb[0] |=
 					NDCB0_CMD_XTYPE(XTYPE_MONOLITHIC_RW) |
 					NDCB0_LEN_OVRD;
+				len = nand_subop_get_data_len(subop, op_id);
 				nfc_op->ndcb[3] |= round_up(len, FIFO_DEPTH);
 			}
 			nfc_op->data_delay_ns = instr->delay_ns;
@@ -1606,6 +1607,7 @@ static void marvell_nfc_parse_instructions(struct nand_chip *chip,
 				nfc_op->ndcb[0] |=
 					NDCB0_CMD_XTYPE(XTYPE_MONOLITHIC_RW) |
 					NDCB0_LEN_OVRD;
+				len = nand_subop_get_data_len(subop, op_id);
 				nfc_op->ndcb[3] |= round_up(len, FIFO_DEPTH);
 			}
 			nfc_op->data_delay_ns = instr->delay_ns;
-- 
2.17.1


______________________________________________________
Linux MTD discussion mailing list
http://lists.infradead.org/mailman/listinfo/linux-mtd/