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powerpc: Drop include of linux/io.h from asm/io.h 

Currently powerpc's asm/io.h includes linux/io.h, and linux/io.h
includes asm/io.h.

This can cause problems because depending on which is included first the
order of definitions between the two files will change.

The include of linux/io.h was added back in 2008 in commit b41e5fffe8
("[POWERPC] devres: Add devm_ioremap_prot()"). It's not entirely clear
it was needed then, but devm_ioremap_prot() has since been removed
entirely as unused, in dedd24a12f ("powerpc: Remove unused
devm_ioremap_prot()").

So it seems to be unnecessary and can potentially cause problems, so
remove the include of linux/io.h from asm/io.h

Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
hifive-unleashed-5.1
Michael Ellerman 2017-04-13 23:14:36 +10:00
parent 6b3edefefa
commit 590c369e7e
1 changed files with 0 additions and 2 deletions
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arch/powerpc/include/asm/io.h
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@ -25,8 +25,6 @@ extern struct pci_dev *isa_bridge_pcidev;
#endif
#include <linux/device.h>
#include <linux/io.h>
#include <linux/compiler.h>
#include <asm/page.h>
#include <asm/byteorder.h>