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Fix gcc 4.9 build issue in 5.4.y

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Some older systems still compile kernels with old gcc version.
These warnings and errors show up when compiling with gcc 4.9.2

 error: "__GCC4_has_attribute___uninitialized__" is not defined [-Werror=undef]

Upstream won't need this because newer kernels are not compilable with gcc 4.9.

Subject: gcc-4.9 warning/error fix for 5.10.223-rc1
Fixes: fd7eea27a3ae ("Compiler Attributes: Add __uninitialized macro")
Signed-off-by: Jari Ruusu <jariruusu@protonmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This commit is contained in:
Jari Ruusu 2024-07-26 09:53:18 +00:00 • committed by Greg Kroah-Hartman
parent c7a28cb079
commit af3948929b
1 changed files with 1 additions and 0 deletions
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include/linux/compiler_attributes.h
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@ -40,6 +40,7 @@
# define __GCC4_has_attribute___noclone__ 1
# define __GCC4_has_attribute___nonstring__ 0
# define __GCC4_has_attribute___no_sanitize_address__ (__GNUC_MINOR__ >= 8)
# define __GCC4_has_attribute___uninitialized__ 0
# define __GCC4_has_attribute___fallthrough__ 0
#endif