Commit-ID: 0feca851c1b3cb4ebfa3149144b3d5de0879ebaa Gitweb: http://git.kernel.org/tip/0feca851c1b3cb4ebfa3149144b3d5de0879ebaa Author: "Jeremy Fitzhardinge" <jeremy@xxxxxxxx> AuthorDate: Fri, 6 Mar 2009 10:09:26 -0800 Commit: Ingo Molnar <mingo@xxxxxxx> CommitDate: Sun, 8 Mar 2009 20:03:52 +0100 x86-32: make sure virt_addr_valid() returns false for fixmap addresses I found that virt_addr_valid() was returning true for fixmap addresses. I'm not sure whether pfn_valid() is supposed to include this test, but there's no harm in being explicit. Signed-off-by: Jeremy Fitzhardinge <jeremy.fitzhardinge@xxxxxxxxxx> Cc: Jiri Slaby <jirislaby@xxxxxxxxx> Cc: Yinghai Lu <yinghai@xxxxxxxxxx> LKML-Reference: <49B166D6.2080505@xxxxxxxx> Signed-off-by: Ingo Molnar <mingo@xxxxxxx> --- arch/x86/mm/ioremap.c | 2 ++ 1 files changed, 2 insertions(+), 0 deletions(-) diff --git a/arch/x86/mm/ioremap.c b/arch/x86/mm/ioremap.c index 62773ab..62def57 100644 --- a/arch/x86/mm/ioremap.c +++ b/arch/x86/mm/ioremap.c @@ -87,6 +87,8 @@ bool __virt_addr_valid(unsigned long x) return false; if (__vmalloc_start_set && is_vmalloc_addr((void *) x)) return false; + if (x >= FIXADDR_START) + return false; return pfn_valid((x - PAGE_OFFSET) >> PAGE_SHIFT); } EXPORT_SYMBOL(__virt_addr_valid); -- To unsubscribe from this list: send the line "unsubscribe linux-tip-commits" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
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