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powerpc/mm/radix: Use do/while(0) trick for single statement block

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In commit 7a22d6321c3d ("powerpc/mm/radix: Update command line parsing for
disable_radix") an `if` statement was added for a possible empty body
(prom_debug).

Fix the following warning, treated as error with W=1:

  arch/powerpc/kernel/prom_init.c:656:46: error: suggest braces around empty body in an ‘if’ statement [-Werror=empty-body]

Suggested-by: Randy Dunlap <rdunlap@infradead.org>
Signed-off-by: Mathieu Malaterre <malat@debian.org>
Acked-by: Randy Dunlap <rdunlap@infradead.org>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
This commit is contained in:
Mathieu Malaterre 2018-04-23 21:36:38 +02:00 committed by Michael Ellerman
parent d8731527ac
commit 85aa4b9841
1 changed files with 1 additions and 1 deletions
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2
arch/powerpc/kernel/prom_init.c
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@ -103,7 +103,7 @@ int of_workarounds;
#ifdef DEBUG_PROM
#define prom_debug(x...) prom_printf(x)
#else
#define prom_debug(x...)
#define prom_debug(x...) do { } while (0)
#endif