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SubjectRe: [PATCH] arm64/xen: redefine xen_remap on arm64
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On Mon, 2013-12-30 at 14:55 +0800, Chen Baozi wrote:
> xen_remap used to be defined as ioremap_cached on arm64. In commit
> c04e8e2fe, a new ioremap_cache was implemented, and ioremap_cached
> was deleted, while xen_remap stays the same. This would lead to
> the failure when building with CONFIG_HVC_XEN. Redefined xen_remap
> on arm64 as ioremap_cache on arm64 to fix it.
>

I missed that include of arm header by arm64 when looking for users
of arm64's ioremap_cached() when working on commit c04e8e2fe. Anyway,
grepping the kernel tree, I see:

ioremap_cached()
defined by: arm, metag, unicore32
used by: arch/arm/include/asm/xen/page.h
drivers/mtd/maps/pxa2xx-flash.c

ioremap_cache()
defined by: arm64, sh, xtensa, ia64, x86
used by: drivers/video/vesafb.c
drivers/char/toshiba.c
drivers/acpi/apei
drivers/lguest/lguest_device.c
drivers/sfi/sfi_core.c
include/linux/acpi_io.h

I think it would be better to just avoid the confusion and the ifdef in
asm/xen/page.h by globally changing ioremap_cached to ioremap_cache.

--Mark




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