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Arnd Bergmann 25d99f7baa fs/select: rework stack allocation hack for clang [ Upstream commit `ddb9fd7a54` ] A while ago, we changed the way that select() and poll() preallocate a temporary buffer just under the size of the static warning limit of 1024 bytes, as clang was frequently going slightly above that limit. The warnings have recently returned and I took another look. As it turns out, clang is not actually inherently worse at reserving stack space, it just happens to inline do_select() into core_sys_select(), while gcc never inlines it. Annotate do_select() to never be inlined and in turn remove the special case for the allocation size. This should give the same behavior for both clang and gcc all the time and once more avoids those warnings. Fixes: `ad312f95d4` ("fs/select: avoid clang stack usage warning") Signed-off-by: Arnd Bergmann <arnd@arndb.de> Link: https://lore.kernel.org/r/20240216202352.2492798-1-arnd@kernel.org Reviewed-by: Kees Cook <keescook@chromium.org> Reviewed-by: Andi Kleen <ak@linux.intel.com> Reviewed-by: Jan Kara <jack@suse.cz> Signed-off-by: Christian Brauner <brauner@kernel.org> Signed-off-by: Sasha Levin <sashal@kernel.org>		2024-03-26 18:21:15 -04:00
arch	s390/dasd: add autoquiesce feature	2024-03-26 18:21:14 -04:00
block	block: sed-opal: handle empty atoms when parsing response	2024-03-26 18:21:13 -04:00
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drivers	nbd: null check for nla_nest_start	2024-03-26 18:21:14 -04:00
fs	fs/select: rework stack allocation hack for clang	2024-03-26 18:21:15 -04:00
include	fs/select: rework stack allocation hack for clang	2024-03-26 18:21:15 -04:00
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net	Bluetooth: rfcomm: Fix null-ptr-deref in rfcomm_check_security	2024-03-26 18:21:13 -04:00
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scripts	gen_compile_commands: fix invalid escape sequence warning	2024-03-26 18:21:12 -04:00
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sound	ASoC: wm8962: Fix up incorrect error message in wm8962_set_fll	2024-03-26 18:21:14 -04:00
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README

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.