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commitd7f393430aupstream. In order to be sure that 'buff' is never truncated, its size should be 12, not 11. When building with W=1, this fixes the following warnings: drivers/infiniband/hw/mlx4/sysfs.c: In function ‘add_port_entries’: drivers/infiniband/hw/mlx4/sysfs.c:268:34: error: ‘sprintf’ may write a terminating nul past the end of the destination [-Werror=format-overflow=] 268 | sprintf(buff, "%d", i); | ^ drivers/infiniband/hw/mlx4/sysfs.c:268:17: note: ‘sprintf’ output between 2 and 12 bytes into a destination of size 11 268 | sprintf(buff, "%d", i); | ^~~~~~~~~~~~~~~~~~~~~~ drivers/infiniband/hw/mlx4/sysfs.c:286:34: error: ‘sprintf’ may write a terminating nul past the end of the destination [-Werror=format-overflow=] 286 | sprintf(buff, "%d", i); | ^ drivers/infiniband/hw/mlx4/sysfs.c:286:17: note: ‘sprintf’ output between 2 and 12 bytes into a destination of size 11 286 | sprintf(buff, "%d", i); | ^~~~~~~~~~~~~~~~~~~~~~ Fixes:c1e7e46612("IB/mlx4: Add iov directory in sysfs under the ib device") Signed-off-by: Christophe JAILLET <christophe.jaillet@wanadoo.fr> Link: https://lore.kernel.org/r/0bb1443eb47308bc9be30232cc23004c4d4cf43e.1695448530.git.christophe.jaillet@wanadoo.fr Signed-off-by: Leon Romanovsky <leon@kernel.org> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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.