From: Juergen Gross <jgross@suse.com>
To: Mauricio Faria de Oliveira <mfo@igalia.com>,
Thomas Gleixner <tglx@kernel.org>, Ingo Molnar <mingo@redhat.com>,
Borislav Petkov <bp@alien8.de>,
Dave Hansen <dave.hansen@linux.intel.com>,
x86@kernel.org, "H. Peter Anvin" <hpa@zytor.com>,
Alexey Dobriyan <adobriyan@gmail.com>,
Boris Ostrovsky <boris.ostrovsky@oracle.com>
Cc: kernel-dev@igalia.com, linux-kernel@vger.kernel.org,
xen-devel@lists.xenproject.org
Subject: Re: [PATCH v3 2/4] x86/asm, x86/boot: expose inline memcmp
Date: Tue, 26 May 2026 11:52:59 +0200 [thread overview]
Message-ID: <3aaa12b1-042b-453d-94d2-9305afa15ff2@suse.com> (raw)
In-Reply-To: <20260520-pvh-kasan-inline-v3-2-bede769c6ec7@igalia.com>
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On 20.05.26 23:12, Mauricio Faria de Oliveira wrote:
> Move the inline memcmp function currently only available in 'boot/string.c'
> and its users (eg, 'boot/compressed/string.c' and 'purgatory/purgatory.ro')
> into the inline string functions header <asm/string_inline.h> to be reused.
>
> Note that the inline memcmp() returns 0/1, not -1/0/1 as regular memcmp()
> (reported by David Laight <david.laight.linux@gmail.com>), which is not
> caused or changed by this commit; this will be addressed separately.
>
> Signed-off-by: Mauricio Faria de Oliveira <mfo@igalia.com>
Reviewed-by: Juergen Gross <jgross@suse.com>
Juergen
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next prev parent reply other threads:[~2026-05-26 9:53 UTC|newest]
Thread overview: 9+ messages / expand[flat|nested] mbox.gz Atom feed top
2026-05-20 21:12 [PATCH v3 0/4] x86/pvh: fix unbootable VMs again (PVH + KASAN) Mauricio Faria de Oliveira
2026-05-20 21:12 ` [PATCH v3 1/4] x86/asm: move inline string functions to <asm/string_inline.h> Mauricio Faria de Oliveira
2026-05-26 9:51 ` Juergen Gross
2026-05-26 15:10 ` Mauricio Faria de Oliveira
2026-05-20 21:12 ` [PATCH v3 2/4] x86/asm, x86/boot: expose inline memcmp Mauricio Faria de Oliveira
2026-05-26 9:52 ` Juergen Gross [this message]
2026-05-20 21:12 ` [PATCH v3 3/4] x86/cpuid: fix unbootable VMs by really inlining memcmp() in hypervisor_cpuid_base() Mauricio Faria de Oliveira
2026-05-20 21:12 ` [PATCH v3 4/4] x86/pvh: fix unbootable VMs by really inlining memset() in xen_prepare_pvh() Mauricio Faria de Oliveira
2026-05-26 15:11 ` [PATCH v3 0/4] x86/pvh: fix unbootable VMs again (PVH + KASAN) Mauricio Faria de Oliveira
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