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authorTony Luck <tony.luck@intel.com>2018-08-20 09:31:04 -0700
committerLinus Torvalds <torvalds@linux-foundation.org>2018-08-20 12:22:48 -0700
commitcc26ebbebde8548014d9329ac2f6cf0178181789 (patch)
treed056c73be8a3359e6c1102be867d0bc497327163
parent8fdd36d44205cd6bccca26246ae84d7515d10015 (diff)
ia64: Fix kernel BUG at lib/ioremap.c:72!
Commit 0bbf47eab469 ("ia64: use asm-generic/io.h") results in a BUG while booting ia64. This is because asm-generic/io.h defines PCI_IOBASE, which results in the function acpi_pci_root_remap_iospace() doing a lot of unnecessary (and wrong) things. I'd suggested an #if !CONFIG_IA64 in the functon, but Arnd suggested keeping the fix inside the arch/ia64 tree. Fixes: 0bbf47eab469 ("ia64: use asm-generic/io.h") Suggested-by: Arnd Bergman <arnd@arndb.de> Signed-off-by: Tony Luck <tony.luck@intel.com> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
-rw-r--r--arch/ia64/include/asm/io.h1
1 files changed, 1 insertions, 0 deletions
diff --git a/arch/ia64/include/asm/io.h b/arch/ia64/include/asm/io.h
index 6f952171abf9..1e6fef69bb01 100644
--- a/arch/ia64/include/asm/io.h
+++ b/arch/ia64/include/asm/io.h
@@ -454,6 +454,7 @@ extern void memset_io(volatile void __iomem *s, int c, long n);
#define xlate_dev_kmem_ptr xlate_dev_kmem_ptr
#define xlate_dev_mem_ptr xlate_dev_mem_ptr
#include <asm-generic/io.h>
+#undef PCI_IOBASE
# endif /* __KERNEL__ */