linux-kernel - Re: [PATCH] uapi: Fix undefined __always

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Message-Id: <20210923205142.a0f872407b97466d3d028cd9@kernel.org>
Date:   Thu, 23 Sep 2021 20:51:42 +0900
From:   Masami Hiramatsu <mhiramat@...nel.org>
To:     Ismael Luceno <ismael@...ev.co.uk>
Cc:     linux-kernel@...r.kernel.org,
        Masami Hiramatsu <mhiramat@...nel.org>
Subject: Re: [PATCH] uapi: Fix undefined __always_inline on non-glibc
 systems

On Thu, 23 Sep 2021 02:57:06 +0200
Ismael Luceno <ismael@...ev.co.uk> wrote:

> This macro is defined by glibc itself, which makes the issue go unnoticed on
> those systems.  On non-glibc systems it causes build failures on several
> utilities and libraries, like bpftool and objtool.

Looks good to me.

Acked-by: Masami Hiramatsu <mhiramat@...nel.org>

Thank you!

> 
> Fixes: 1d509f2a6ebc ("x86/insn: Support big endian cross-compiles")
> Fixes: 2d7ce0e8a704 ("tools/virtio: more stubs")
> Fixes: 3fb321fde22d ("selftests/net: ipv6 flowlabel")
> Fixes: 50b3ed57dee9 ("selftests/bpf: test bpf flow dissection")
> Fixes: 9cacf81f8161 ("bpf: Remove extra lock_sock for TCP_ZEROCOPY_RECEIVE")
> Fixes: a4b2061242ec ("tools include uapi: Grab a copy of linux/in.h")
> Fixes: b12d6ec09730 ("bpf: btf: add btf print functionality")
> Fixes: c0dd967818a2 ("tools, include: Grab a copy of linux/erspan.h")
> Fixes: c4b6014e8bb0 ("tools: Add copy of perf_event.h to tools/include/linux/")
> 
> Signed-off-by: Ismael Luceno <ismael@...ev.co.uk>
> ---
>  include/uapi/linux/byteorder/big_endian.h    | 1 +
>  include/uapi/linux/byteorder/little_endian.h | 1 +
>  2 files changed, 2 insertions(+)
> 
> diff --git a/include/uapi/linux/byteorder/big_endian.h b/include/uapi/linux/byteorder/big_endian.h
> index 2199adc6a6c2..80aa5c41a763 100644
> --- a/include/uapi/linux/byteorder/big_endian.h
> +++ b/include/uapi/linux/byteorder/big_endian.h
> @@ -9,6 +9,7 @@ #define __BIG_ENDIAN 4321
>  #define __BIG_ENDIAN_BITFIELD
>  #endif
>  
> +#include <linux/stddef.h>
>  #include <linux/types.h>
>  #include <linux/swab.h>
>  
> diff --git a/include/uapi/linux/byteorder/little_endian.h b/include/uapi/linux/byteorder/little_endian.h
> index 601c904fd5cd..cd98982e7523 100644
> --- a/include/uapi/linux/byteorder/little_endian.h
> +++ b/include/uapi/linux/byteorder/little_endian.h
> @@ -9,6 +9,7 @@ #define __LITTLE_ENDIAN 1234
>  #define __LITTLE_ENDIAN_BITFIELD
>  #endif
>  
> +#include <linux/stddef.h>
>  #include <linux/types.h>
>  #include <linux/swab.h>
>  
> -- 
> 2.33.0
> 


-- 
Masami Hiramatsu <mhiramat@...nel.org>