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97b34809ec
The atomisp_set_fmt() function has multiple copies of the large v4l2_format structure on its stack, resulting in a warning about excessive stack usage in some rare randconfig builds. drivers/staging/media/atomisp/pci/atomisp_cmd.c:5600:5: error: stack frame size of 1084 bytes in function 'atomisp_set_fmt' [-Werror,-Wframe-larger-than=] Of this structure, only three members in the 'fmt.pix' member are used, so simplify it by using the smaller v4l2_pix_format structure directly. This reduces the stack usage to 612 bytes, and it could be reduced further by only storing the three members that are used. Link: https://lore.kernel.org/linux-media/20210226140524.3478346-1-arnd@kernel.org Signed-off-by: Arnd Bergmann <arnd@arndb.de> Reviewed-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com> Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.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.