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b540358e6c
The following warning is triggered when I used clang compiler
to build the selftest.
/.../prog_tests/btf_dedup_split.c:368:6: warning: variable 'btf2' is used uninitialized whenever 'if' condition is true [-Wsometimes-uninitialized]
if (!ASSERT_OK(err, "btf_dedup"))
^~~~~~~~~~~~~~~~~~~~~~~~~~~~
/.../prog_tests/btf_dedup_split.c:424:12: note: uninitialized use occurs here
btf__free(btf2);
^~~~
/.../prog_tests/btf_dedup_split.c:368:2: note: remove the 'if' if its condition is always false
if (!ASSERT_OK(err, "btf_dedup"))
^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/.../prog_tests/btf_dedup_split.c:343:25: note: initialize the variable 'btf2' to silence this warning
struct btf *btf1, *btf2;
^
= NULL
Initialize local variable btf2 = NULL and the warning is gone.
Fixes:
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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 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.