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In [1] Eduard mentioned that on push_stack failure verifier code should return -ENOMEM instead of -EFAULT. After checking with the other call sites I've found that code randomly returns either -ENOMEM or -EFAULT. This patch unifies the return values for the push_stack (and similar push_async_cb) functions such that error codes are always assigned properly. [1] https://lore.kernel.org/bpf/20250615085943.3871208-1-a.s.protopopov@gmail.com Signed-off-by: Anton Protopopov <a.s.protopopov@gmail.com> Acked-by: Eduard Zingerman <eddyz87@gmail.com> Link: https://lore.kernel.org/r/20251019202145.3944697-2-a.s.protopopov@gmail.com Signed-off-by: Alexei Starovoitov <ast@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 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.