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SubjectRe: [PATCH] disable sparse warnings about unknown attributes
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On 02/15/2018 01:07 PM, Luc Van Oostenryck wrote:
> Currently, sparse issues warnings on code using an attribute
> it doesn't know about.
>
> One of the problem with this is that these warnings have no
> value for the developer, it's just noise for him. At best these
> warnings tell something about some deficiencies of sparse itself
> but not about a potential problem with code analyzed.
>
> A second problem with this is that sparse release are, alas,
> less frequent than new attributes are added to GCC.
>
> So, avoid the noise by asking sparse to not warn about
> attributes it doesn't know about.
>
> Reference: https://marc.info/?l=linux-sparse&m=151871600016790
> Reference: https://marc.info/?l=linux-sparse&m=151871725417322
> Signed-off-by: Luc Van Oostenryck <luc.vanoostenryck@gmail.com>
> ---
> Makefile | 2 +-
> 1 file changed, 1 insertion(+), 1 deletion(-)
>
> diff --git a/Makefile b/Makefile
> index 79ad2bfa2..8d9a7374c 100644
> --- a/Makefile
> +++ b/Makefile
> @@ -388,7 +388,7 @@ PYTHON = python
> CHECK = sparse
>
> CHECKFLAGS := -D__linux__ -Dlinux -D__STDC__ -Dunix -D__unix__ \
> - -Wbitwise -Wno-return-void $(CF)
> + -Wbitwise -Wno-return-void -Wno-unknown-attribute $(CF)
> NOSTDINC_FLAGS =
> CFLAGS_MODULE =
> AFLAGS_MODULE =
>

Acked-by: Randy Dunlap <rdunlap@infradead.org>
Tested-by: Randy Dunlap <rdunlap@infradead.org>

thanks,
--
~Randy

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