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m32r: fix build failure 

m32r allmodconfig build was failing with the error:

  ERROR: "smp_flush_cache_all" [drivers/misc/lkdtm.ko] undefined!

lkdtm driver at drivers/misc is using flush_icache_range() which for
m32r is defined as smp_flush_cache_all() if CONFIG_SMP is defined.  But
as smp_flush_cache_all() was not exported so the build was failing with
the error of undefined symbol.

Link: http://lkml.kernel.org/r/1464001182-8329-1-git-send-email-sudipm.mukherjee@gmail.com
Signed-off-by: Sudip Mukherjee <sudip.mukherjee@codethink.co.uk>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
This commit is contained in:
Sudip Mukherjee 2016-05-23 16:22:23 -07:00 committed by Linus Torvalds
parent 7639dad93a
commit ededb49a9a
1 changed files with 1 additions and 0 deletions
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arch/m32r/kernel/smp.c
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@ -164,6 +164,7 @@ void smp_flush_cache_all(void)
spin_unlock(&flushcache_lock);
preempt_enable();
}
EXPORT_SYMBOL(smp_flush_cache_all);
void smp_flush_cache_all_interrupt(void)
{