linux-kernel - [PATCH] x86/vdso: avoid warning when building vdso2c on 32-bit host

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Message-ID: <14b269f1-a9d2-3083-00d7-c23368f135e9@suse.com>
Date:   Wed, 10 Mar 2021 10:22:16 +0100
From:   Jan Beulich <jbeulich@...e.com>
To:     Andy Lutomirski <luto@...nel.org>
Cc:     lkml <linux-kernel@...r.kernel.org>,
        the arch/x86 maintainers <x86@...nel.org>,
        Thomas Gleixner <tglx@...utronix.de>,
        Ingo Molnar <mingo@...hat.com>, Borislav Petkov <bp@...en8.de>
Subject: [PATCH] x86/vdso: avoid warning when building vdso2c on 32-bit host

size_t arguments can't compatibly be passed for l-modifier format
specifiers. Use z instead.

Fixes: 8382c668ce4f ("x86/vdso: Add support for exception fixup in vDSO functions")
Signed-off-by: Jan Beulich <jbeulich@...e.com>

--- a/arch/x86/entry/vdso/vdso2c.h
+++ b/arch/x86/entry/vdso/vdso2c.h
@@ -35,7 +35,7 @@ static void BITSFUNC(extract)(const unsi
 	if (offset + len > data_len)
 		fail("section to extract overruns input data");
 
-	fprintf(outfile, "static const unsigned char %s[%lu] = {", name, len);
+	fprintf(outfile, "static const unsigned char %s[%zu] = {", name, len);
 	BITSFUNC(copy)(outfile, data + offset, len);
 	fprintf(outfile, "\n};\n\n");
 }