On 08/27/2015 11:06 PM, Ingo Molnar wrote:

* Luis R. Rodriguez <[email protected]> wrote:

From: "Luis R. Rodriguez" <[email protected]>

S390 requires its own implementation of pcio_iomap*() calls
is because it has its "BAR spaces are not disjunctive on s390
so we need the bar parameter of pci_iomap to find the corresponding
device and create the mapping cookie" -- in summary, it has its own
lookup/lock solution.

It does not include asm-generic/pci_iomap.h

Since it currenty maps ioremap_wc() to ioremap_nocache() and that's
the architecture default we can easily just map the wc calls to
the default calls as well.

Cc: Guenter Roeck <[email protected]>
Cc: Jean-Christophe Plagniol-Villard <[email protected]>
Cc: Tomi Valkeinen <[email protected]>
Cc: [email protected]
Cc: [email protected]
Cc: Borislav Petkov <[email protected]>
Cc: Ingo Molnar <[email protected]>
Cc: Fengguang Wu <[email protected]>
Cc: Andrew Morton <[email protected]>
Cc: Steven Rostedt <[email protected]>
Reported-by: 0 day bot
Signed-off-by: Luis R. Rodriguez <[email protected]>
---

This broke through some series that went into Ingo's tip tree which
I added. As such I *think* this should go through Ingo's tip tree.
Let me know. Up to you guys.

I fixed the changelog to explain all this.

Also, is there any other architecture that got broken by:

    1b3d4200c1e0 PCI: Add pci_iomap_wc() variants


Should be the only one. There are only two implementations of pci_iomap(),
one in s390 code and the generic implementation.

Guenter

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