linux-kernel - Re: [PATCH] selftests: kvm: Fix a compile error in selftests/kvm/rseq

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Message-ID: <20220803142637.3y5fj2cwyvbrwect@kamzik>
Date:   Wed, 3 Aug 2022 16:26:37 +0200
From:   Andrew Jones <andrew.jones@...ux.dev>
To:     Jinrong Liang <ljr.kernel@...il.com>
Cc:     Paolo Bonzini <pbonzini@...hat.com>,
        Wanpeng Li <wanpengli@...cent.com>,
        Sean Christopherson <seanjc@...gle.com>,
        Jim Mattson <jmattson@...gle.com>,
        Vitaly Kuznetsov <vkuznets@...hat.com>,
        Joerg Roedel <joro@...tes.org>,
        Jinrong Liang <cloudliang@...cent.com>, kvm@...r.kernel.org,
        linux-kernel@...r.kernel.org
Subject: Re: [PATCH] selftests: kvm: Fix a compile error in
 selftests/kvm/rseq_test.c

On Wed, Aug 03, 2022 at 09:58:51PM +0800, Jinrong Liang wrote:
> My ldd version is (GNU libc) 2.28, and I get a compilation error in this case.
> But I use another ldd (Ubuntu GLIBC 2.31-0ubuntu9.2) 2.31 is compiling fine.
> This shows that compilation errors may occur in different GNU libc environments.
> Would it be more appropriate to use syscall for better compatibility?

OK, it's a pity, but no big deal to use syscall().

Reviewed-by: Andrew Jones <andrew.jones@...ux.dev>

Thanks,
drew