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Commit7e534323c4("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 commit7e534323c4("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:7e534323c4("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>
Linux kernel
============
There are several guides for kernel developers and users. These guides can
be rendered in a number of formats, like HTML and PDF. Please read
Documentation/admin-guide/README.rst first.
In order to build the documentation, use ``make htmldocs`` or
``make pdfdocs``. The formatted documentation can also be read online at:
https://www.kernel.org/doc/html/latest/
There are various text files in the Documentation/ subdirectory,
several of them using the Restructured Text markup notation.
Please read the Documentation/process/changes.rst file, as it contains the
requirements for building and running the kernel, and information about
the problems which may result by upgrading your kernel.