Commit f56d005d authored by Thomas Gleixner's avatar Thomas Gleixner Committed by Ingo Molnar

x86: no CPA on iounmap

When an ioremap is unmapped, do not change the page attributes. There might
be another mapping of the same physical address. PAT might detect a conflicting
mapping attribute for no good reason. The mapping is removed anyway.
Signed-off-by: default avatarThomas Gleixner <tglx@linutronix.de>
Signed-off-by: default avatarIngo Molnar <mingo@elte.hu>
parent 75ab43bf
...@@ -240,9 +240,6 @@ void iounmap(volatile void __iomem *addr) ...@@ -240,9 +240,6 @@ void iounmap(volatile void __iomem *addr)
return; return;
} }
/* Reset the direct mapping. Can block */
ioremap_change_attr(p->phys_addr, p->size, IOR_MODE_CACHED);
/* Finally remove it */ /* Finally remove it */
o = remove_vm_area((void *)addr); o = remove_vm_area((void *)addr);
BUG_ON(p != o || o == NULL); BUG_ON(p != o || o == NULL);
......
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