From: Stephen Rothwell <sfr@canb.auug.org.au>
To: Abdul Haleem <abdhalee@linux.vnet.ibm.com>
Cc: sachinp <sachinp@linux.vnet.ibm.com>,
ndesaulniers@google.com,
linux-kernel <linux-kernel@vger.kernel.org>,
linux-next <linux-next@vger.kernel.org>,
ojeda@kernel.org, linuxppc-dev <linuxppc-dev@lists.ozlabs.org>
Subject: Re: [5.15-rc1][PPC][bisected 6d2ef226] mainline build breaks at ./include/linux/compiler_attributes.h:62:5: warning: "__has_attribute"
Date: Tue, 14 Sep 2021 16:22:23 +1000 [thread overview]
Message-ID: <20210914162223.363dd7c2@canb.auug.org.au> (raw)
In-Reply-To: <50a91600-173f-ae8f-e194-4649a9f8176b@linux.vnet.ibm.com>
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Hi Abdul,
On Tue, 14 Sep 2021 11:39:44 +0530 Abdul Haleem <abdhalee@linux.vnet.ibm.com> wrote:
>
> Today's mainline kernel fails to compile on my powerpc box with below errors
>
> ././include/linux/compiler_attributes.h:62:5: warning: "__has_attribute" is not defined, evaluates to 0 [-Wundef]
> #if __has_attribute(__assume_aligned__)
> ^~~~~~~~~~~~~~~
> ././include/linux/compiler_attributes.h:62:20: error: missing binary operator before token "("
> #if __has_attribute(__assume_aligned__)
> ^
> ././include/linux/compiler_attributes.h:88:5: warning: "__has_attribute" is not defined, evaluates to 0 [-Wundef]
> #if __has_attribute(__copy__)
> ^~~~~~~~~~~~~~~
> ././include/linux/compiler_attributes.h:88:20: error: missing binary operator before token "("
> #if __has_attribute(__copy__)
>
> Kernel builds fine when below patch is reverted
>
> commit 6d2ef22 : compiler_attributes.h: drop __has_attribute() support for gcc4
Thanks for your report.
This is known and being addressed.
--
Cheers,
Stephen Rothwell
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next prev parent reply other threads:[~2021-09-14 6:23 UTC|newest]
Thread overview: 3+ messages / expand[flat|nested] mbox.gz Atom feed top
2021-09-14 6:09 [5.15-rc1][PPC][bisected 6d2ef226] mainline build breaks at ./include/linux/compiler_attributes.h:62:5: warning: "__has_attribute" Abdul Haleem
2021-09-14 6:22 ` Stephen Rothwell [this message]
2021-09-14 15:06 ` Nick Desaulniers
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