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| author | Paul Burton <paul.burton@mips.com> | 2019-10-04 18:41:30 +0000 |
|---|---|---|
| committer | Miquel Raynal <miquel.raynal@bootlin.com> | 2019-10-07 09:56:36 +0200 |
| commit | df8fed831cbcdce7b283b2d9c1aadadcf8940d05 (patch) | |
| tree | b6fbd744fe9d21b5d878481d72abbe1f4497081f | |
| parent | 41e086e1550646344dd47d3462ca2d19caabb943 (diff) | |
| download | linux-stable-df8fed831cbcdce7b283b2d9c1aadadcf8940d05.tar.gz linux-stable-df8fed831cbcdce7b283b2d9c1aadadcf8940d05.tar.bz2 linux-stable-df8fed831cbcdce7b283b2d9c1aadadcf8940d05.zip | |
mtd: rawnand: au1550nd: Fix au_read_buf16() prototype
Commit 7e534323c416 ("mtd: rawnand: Pass a nand_chip object to
chip->read_xxx() hooks") modified the prototype of the struct nand_chip
read_buf function pointer. In the au1550nd driver we have 2
implementations of read_buf. The previously mentioned commit modified
the au_read_buf() implementation to match the function pointer, but not
au_read_buf16(). This results in a compiler warning for MIPS
db1xxx_defconfig builds:
drivers/mtd/nand/raw/au1550nd.c:443:57:
warning: pointer type mismatch in conditional expression
Fix this by updating the prototype of au_read_buf16() to take a struct
nand_chip pointer as its first argument, as is expected after commit
7e534323c416 ("mtd: rawnand: Pass a nand_chip object to chip->read_xxx()
hooks").
Note that this shouldn't have caused any functional issues at runtime,
since the offset of the struct mtd_info within struct nand_chip is 0
making mtd_to_nand() effectively a type-cast.
Signed-off-by: Paul Burton <paul.burton@mips.com>
Fixes: 7e534323c416 ("mtd: rawnand: Pass a nand_chip object to chip->read_xxx() hooks")
Cc: stable@vger.kernel.org # v4.20+
Reviewed-by: Boris Brezillon <boris.brezillon@collabora.com>
Signed-off-by: Miquel Raynal <miquel.raynal@bootlin.com>
| -rw-r--r-- | drivers/mtd/nand/raw/au1550nd.c | 5 |
1 files changed, 2 insertions, 3 deletions
diff --git a/drivers/mtd/nand/raw/au1550nd.c b/drivers/mtd/nand/raw/au1550nd.c index 97a97a9ccc36..e10b76089048 100644 --- a/drivers/mtd/nand/raw/au1550nd.c +++ b/drivers/mtd/nand/raw/au1550nd.c @@ -134,16 +134,15 @@ static void au_write_buf16(struct nand_chip *this, const u_char *buf, int len) /** * au_read_buf16 - read chip data into buffer - * @mtd: MTD device structure + * @this: NAND chip object * @buf: buffer to store date * @len: number of bytes to read * * read function for 16bit buswidth */ -static void au_read_buf16(struct mtd_info *mtd, u_char *buf, int len) +static void au_read_buf16(struct nand_chip *this, u_char *buf, int len) { int i; - struct nand_chip *this = mtd_to_nand(mtd); u16 *p = (u16 *) buf; len >>= 1; |