mtd: rawnand: marvell: prevent harmless warnings

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 calls the nand_subop_get_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")
Signed-off-by: Miquel Raynal <miquel.raynal@bootlin.com>
Signed-off-by: Boris Brezillon <boris.brezillon@bootlin.com>

diff --git a/drivers/mtd/nand/raw/marvell_nand.c b/drivers/mtd/nand/raw/marvell_nand.c
index 7af4d62..bc2ef52 100644 (file)
--- 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;