From: John David Anglin Date: Sat, 2 Nov 2019 16:43:17 +0000 (-0400) Subject: parisc: Avoid spurious inequivalent alias kernel error messages X-Git-Tag: v5.15~5027^2 X-Git-Url: http://review.tizen.org/git/?a=commitdiff_plain;h=e9c837c6ab07127b02357efcfe1a23d030db1aca;p=platform%2Fkernel%2Flinux-starfive.git parisc: Avoid spurious inequivalent alias kernel error messages 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 Signed-off-by: Helge Deller --- diff --git a/arch/parisc/kernel/cache.c b/arch/parisc/kernel/cache.c index a82b3ea..2407b0b 100644 --- a/arch/parisc/kernel/cache.c +++ b/arch/parisc/kernel/cache.c @@ -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; }