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parisc: Avoid spurious inequivalent alias kernel error messages

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This patch changes flush_dcache_page() to only print inequivalent alias error
messages on systems that require coherency.  Inequivalent aliases can occur on
systems that don't require coherency and this can cause spurious messages.

Signed-off-by: John David Anglin <dave.anglin@bell.net>
Signed-off-by: Helge Deller <deller@gmx.de>
This commit is contained in:
John David Anglin 2019-11-02 12:43:17 -04:00 committed by Helge Deller
parent f973cce0e4
commit e9c837c6ab
1 changed files with 1 additions and 1 deletions
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2
arch/parisc/kernel/cache.c
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@ -365,7 +365,7 @@ void flush_dcache_page(struct page *page)
if (old_addr == 0 || (old_addr & (SHM_COLOUR - 1))
!= (addr & (SHM_COLOUR - 1))) {
__flush_cache_page(mpnt, addr, page_to_phys(page));
if (old_addr)
if (parisc_requires_coherency() && old_addr)
printk(KERN_ERR "INEQUIVALENT ALIASES 0x%lx and 0x%lx in file %pD\n", old_addr, addr, mpnt->vm_file);
old_addr = addr;
}