linux-kernel - Re: [PATCH v3 8/9] um: Fix -Wmissing-prototypes warnings for text

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Date: Tue, 26 Mar 2024 09:13:37 -0500
From: Lucas De Marchi <lucas.demarchi@...el.com>
To: Tiwei Bie <tiwei.btw@...group.com>
CC: <richard@....at>, <anton.ivanov@...bridgegreys.com>,
	<johannes@...solutions.net>, <jani.nikula@...el.com>,
	<linux-um@...ts.infradead.org>, <linux-kernel@...r.kernel.org>,
	<intel-xe@...ts.freedesktop.org>
Subject: Re: [PATCH v3 8/9] um: Fix -Wmissing-prototypes warnings for
 text_poke*

On Wed, Mar 06, 2024 at 06:19:24PM +0800, Tiwei Bie wrote:
>The prototypes for text_poke* are declared in asm/text-patching.h
>under arch/x86/include/. It's safe to include this header, as it's
>UML-aware (by checking CONFIG_UML_X86).

but would it work when building on something other than x86? Or is that
not a thing?

Lucas De Marchi

>
>This will address below -Wmissing-prototypes warnings:
>
>arch/um/kernel/um_arch.c:461:7: warning: no previous prototype for ‘text_poke’ [-Wmissing-prototypes]
>arch/um/kernel/um_arch.c:473:6: warning: no previous prototype for ‘text_poke_sync’ [-Wmissing-prototypes]
>
>Signed-off-by: Tiwei Bie <tiwei.btw@...group.com>
>---
> arch/um/kernel/um_arch.c | 1 +
> 1 file changed, 1 insertion(+)
>
>diff --git a/arch/um/kernel/um_arch.c b/arch/um/kernel/um_arch.c
>index 7a9820797eae..e95f805e5004 100644
>--- a/arch/um/kernel/um_arch.c
>+++ b/arch/um/kernel/um_arch.c
>@@ -23,6 +23,7 @@
> #include <asm/cpufeature.h>
> #include <asm/sections.h>
> #include <asm/setup.h>
>+#include <asm/text-patching.h>
> #include <as-layout.h>
> #include <arch.h>
> #include <init.h>
>-- 
>2.34.1
>