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x86: Add dummy prototype for mk_early_pgtbl_32()

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'make W=1' warns about a function without a prototype in the x86-32 head code:

arch/x86/kernel/head32.c:72:13: error: no previous prototype for 'mk_early_pgtbl_32' [-Werror=missing-prototypes]

This is called from assembler code, so it does not actually need a prototype.
I could not find an appropriate header for it, so just declare it in front
of the definition to shut up the warning.

Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Signed-off-by: Dave Hansen <dave.hansen@linux.intel.com>
Reviewed-by: Alexander Lobakin <aleksander.lobakin@intel.com>
Link: https://lore.kernel.org/all/20230516193549.544673-6-arnd%40kernel.org
This commit is contained in:
Arnd Bergmann 2023-05-16 21:35:34 +02:00 • committed by Dave Hansen
parent 0253b04d5b
commit 2eb5d1df2a
1 changed files with 1 additions and 0 deletions
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arch/x86/kernel/head32.c
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@ -69,6 +69,7 @@ asmlinkage __visible void __init __noreturn i386_start_kernel(void)
* to the first kernel PMD. Note the upper half of each PMD or PTE are
* always zero at this stage.
*/
void __init mk_early_pgtbl_32(void);
void __init mk_early_pgtbl_32(void)
{
#ifdef __pa