On Fri, Jul 26, 2024 at 09:53:18AM +0000, Jari Ruusu wrote:
> On Friday, July 26th, 2024 at 11:52, Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx> wrote:
> > Also the "Fixes:" tag is not in the correct format, please fix that up
> > at the very least.
>
> 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]
>
> Following patch fixes this. 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@xxxxxxxxxxxxxx>
>
> --- ./include/linux/compiler_attributes.h.OLD
> +++ ./include/linux/compiler_attributes.h
> @@ -37,6 +37,7 @@
> # define __GCC4_has_attribute___nonstring__ 0
> # define __GCC4_has_attribute___no_sanitize_address__ (__GNUC_MINOR__ >= 8)
> # define __GCC4_has_attribute___no_sanitize_undefined__ (__GNUC_MINOR__ >= 9)
> +# define __GCC4_has_attribute___uninitialized__ 0
> # define __GCC4_has_attribute___fallthrough__ 0
> # define __GCC4_has_attribute___warning__ 1
> #endif
>
> --
> Jari Ruusu 4096R/8132F189 12D6 4C3A DCDA 0AA4 27BD ACDF F073 3C80 8132 F189
>
Better, thanks! I'll touch this up by hand and apply it to the relevant
branches (not just this one needs it), for the next round of stable
releases.
greg k-h
