Clang does not support this option so the build fails:

  error: unknown warning option '-Wno-dangling-pointer' [-Werror,-Wunknown-warning-option]

Use cc-disable-warning so that the option is only added when it is
supported.

Fixes: bd1d129daa3e ("wifi: ath6k: silence false positive -Wno-dangling-pointer warning on GCC 12")
Reported-by: "kernelci.org bot" <bot@kernelci.org>
Signed-off-by: Nathan Chancellor <nathan@kernel.org>
---
 drivers/net/wireless/ath/ath6kl/Makefile | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/net/wireless/ath/ath6kl/Makefile b/drivers/net/wireless/ath/ath6kl/Makefile
index 01cc0d50fee6..a75bfa9fd1cf 100644
--- a/drivers/net/wireless/ath/ath6kl/Makefile
+++ b/drivers/net/wireless/ath/ath6kl/Makefile
@@ -38,7 +38,7 @@ ath6kl_core-y += recovery.o
 
 # FIXME: temporarily silence -Wdangling-pointer on non W=1+ builds
 ifndef KBUILD_EXTRA_WARN
-CFLAGS_htc_mbox.o += -Wno-dangling-pointer
+CFLAGS_htc_mbox.o += $(call cc-disable-warning, dangling-pointer)
 endif
 
 ath6kl_core-$(CONFIG_NL80211_TESTMODE) += testmode.o

base-commit: 677fb7525331375ba2f90f4bc94a80b9b6e697a3
-- 
2.36.1

Hello:

This patch was applied to netdev/net-next.git (master)
by Jakub Kicinski <kuba@kernel.org>:

On Tue, 24 May 2022 07:56:55 -0700 you wrote:
> Clang does not support this option so the build fails:
> 
>   error: unknown warning option '-Wno-dangling-pointer' [-Werror,-Wunknown-warning-option]
> 
> Use cc-disable-warning so that the option is only added when it is
> supported.
> 
> [...]

Here is the summary with links:
  - ath6kl: Use cc-disable-warning to disable -Wdangling-pointer
    https://git.kernel.org/netdev/net-next/c/48a75b979940

You are awesome, thank you!
-- 
Deet-doot-dot, I am a bot.
https://korg.docs.kernel.org/patchwork/pwbot.html

From: Nathan Chancellor <nathan@kernel.org>
Date: Tue, 24 May 2022 07:56:55 -0700

> Clang does not support this option so the build fails:
> 
>   error: unknown warning option '-Wno-dangling-pointer' [-Werror,-Wunknown-warning-option]
> 
> Use cc-disable-warning so that the option is only added when it is
> supported.
> 
> Fixes: bd1d129daa3e ("wifi: ath6k: silence false positive -Wno-dangling-pointer warning on GCC 12")
> Reported-by: "kernelci.org bot" <bot@kernelci.org>
> Signed-off-by: Nathan Chancellor <nathan@kernel.org>

I was just about to send it :D

Reviewed-and-tested-by: Alexander Lobakin <alexandr.lobakin@intel.com>

> ---
>  drivers/net/wireless/ath/ath6kl/Makefile | 2 +-
>  1 file changed, 1 insertion(+), 1 deletion(-)
> 
> diff --git a/drivers/net/wireless/ath/ath6kl/Makefile b/drivers/net/wireless/ath/ath6kl/Makefile
> index 01cc0d50fee6..a75bfa9fd1cf 100644
> --- a/drivers/net/wireless/ath/ath6kl/Makefile
> +++ b/drivers/net/wireless/ath/ath6kl/Makefile
> @@ -38,7 +38,7 @@ ath6kl_core-y += recovery.o
>  
>  # FIXME: temporarily silence -Wdangling-pointer on non W=1+ builds
>  ifndef KBUILD_EXTRA_WARN
> -CFLAGS_htc_mbox.o += -Wno-dangling-pointer
> +CFLAGS_htc_mbox.o += $(call cc-disable-warning, dangling-pointer)
>  endif
>  
>  ath6kl_core-$(CONFIG_NL80211_TESTMODE) += testmode.o
> 
> base-commit: 677fb7525331375ba2f90f4bc94a80b9b6e697a3
> -- 
> 2.36.1

Thanks,
Al

On 5/24/22 7:56 AM, Nathan Chancellor wrote:
> Clang does not support this option so the build fails:
>
>    error: unknown warning option '-Wno-dangling-pointer' [-Werror,-Wunknown-warning-option]
>
> Use cc-disable-warning so that the option is only added when it is
> supported.
>
> Fixes: bd1d129daa3e ("wifi: ath6k: silence false positive -Wno-dangling-pointer warning on GCC 12")
> Reported-by: "kernelci.org bot" <bot@kernelci.org>
> Signed-off-by: Nathan Chancellor <nathan@kernel.org>

Reviewed-by: Tom Rix <trix@redhat.com>

Thanks

Tom

> ---
>   drivers/net/wireless/ath/ath6kl/Makefile | 2 +-
>   1 file changed, 1 insertion(+), 1 deletion(-)
>
> diff --git a/drivers/net/wireless/ath/ath6kl/Makefile b/drivers/net/wireless/ath/ath6kl/Makefile
> index 01cc0d50fee6..a75bfa9fd1cf 100644
> --- a/drivers/net/wireless/ath/ath6kl/Makefile
> +++ b/drivers/net/wireless/ath/ath6kl/Makefile
> @@ -38,7 +38,7 @@ ath6kl_core-y += recovery.o
>   
>   # FIXME: temporarily silence -Wdangling-pointer on non W=1+ builds
>   ifndef KBUILD_EXTRA_WARN
> -CFLAGS_htc_mbox.o += -Wno-dangling-pointer
> +CFLAGS_htc_mbox.o += $(call cc-disable-warning, dangling-pointer)
>   endif
>   
>   ath6kl_core-$(CONFIG_NL80211_TESTMODE) += testmode.o
>
> base-commit: 677fb7525331375ba2f90f4bc94a80b9b6e697a3