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d22d5f47ec
The code in the ntfl write function is rather complex, and it contains a 512 byte on-stack buffer. The combination of these two leads to using more than the per-function stack warning limit in some configurations, especially with KASAN enabled: drivers/mtd/nftlcore.c:673:12: error: stack frame size (1328) exceeds limit (1280) in 'nftl_writeblock' [-Werror,-Wframe-larger-than] Avoid this warning by moving the on-stack buffer into a separate function that only copies one part of the device to another. This does not really help with the total maximum stack usage in the (non-KASAN) normal case, but it does two things: - no single function has more than the warning limit - the complexity goes down, so the parent function ends up spilling few local variables, and the total actually goes down slightly. Signed-off-by: Arnd Bergmann <arnd@arndb.de> Signed-off-by: Miquel Raynal <miquel.raynal@bootlin.com> |
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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 reStructuredText 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.