Commit bee8ce80 authored by Haavard Skinnemoen's avatar Haavard Skinnemoen Committed by Linus Torvalds
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[PATCH] AVR32: Don't try to iounmap P2 segment addresses



While ioremap() will happily map a physical address through the
P2 (uncached) segment when appropriate, iounmap() doesn't know how
to handle those mappings.

This patch makes iounmap() do the right thing, i.e. nothing, for
such mappings.
Signed-off-by: default avatarHaavard Skinnemoen <hskinnemoen@atmel.com>
Signed-off-by: default avatarLinus Torvalds <torvalds@osdl.org>
parent 6ea850b5
......@@ -77,6 +77,8 @@ void __iounmap(void __iomem *addr)
if ((unsigned long)addr >= P4SEG)
return;
if (PXSEG(addr) == P2SEG)
return;
p = remove_vm_area((void *)(PAGE_MASK & (unsigned long __force)addr));
if (unlikely(!p)) {
......
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