Commit df8fed83 authored by Paul Burton's avatar Paul Burton Committed by Miquel Raynal

mtd: rawnand: au1550nd: Fix au_read_buf16() prototype

Commit 7e534323 ("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
7e534323 ("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: default avatarPaul Burton <paul.burton@mips.com>
Fixes: 7e534323 ("mtd: rawnand: Pass a nand_chip object to chip->read_xxx() hooks")
Cc: stable@vger.kernel.org # v4.20+
Reviewed-by: default avatarBoris Brezillon <boris.brezillon@collabora.com>
Signed-off-by: default avatarMiquel Raynal <miquel.raynal@bootlin.com>
parent 41e086e1
...@@ -134,16 +134,15 @@ static void au_write_buf16(struct nand_chip *this, const u_char *buf, int len) ...@@ -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 * au_read_buf16 - read chip data into buffer
* @mtd: MTD device structure * @this: NAND chip object
* @buf: buffer to store date * @buf: buffer to store date
* @len: number of bytes to read * @len: number of bytes to read
* *
* read function for 16bit buswidth * 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; int i;
struct nand_chip *this = mtd_to_nand(mtd);
u16 *p = (u16 *) buf; u16 *p = (u16 *) buf;
len >>= 1; len >>= 1;
......
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