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authorLv Zheng <lv.zheng@intel.com>2013-12-06 12:52:05 +0400
committerRafael J. Wysocki <rafael.j.wysocki@intel.com>2013-12-07 04:24:33 +0400
commit27d50c82714f6477ac690034b37d202f76eb4f70 (patch)
tree67a1d4e0e73b7e0167a7406ec962718ae2d58305 /drivers/acpi/nvs.c
parentc099eacbcaec4475936fbf73e499507728ce47e1 (diff)
downloadlinux-27d50c82714f6477ac690034b37d202f76eb4f70.tar.xz
ACPI / i915: Fix incorrect <acpi/acpi.h> inclusions via <linux/acpi_io.h>
To avoid build problems and breaking dependencies between ACPI header files, <acpi/acpi.h> should not be included directly by code outside of the ACPI core subsystem. However, that is possible if <linux/acpi_io.h> is included, because that file contains a direct inclusion of <acpi/acpi.h>. For this reason, remove the direct <acpi/acpi.h> inclusion from <linux/acpi_io.h>, move that file from include/linux/ to include/acpi/ and make <linux/acpi.h> include it for CONFIG_ACPI set along with the other ACPI header files. Accordingly, Remove the inclusions of <linux/acpi_io.h> from everywhere. Of course, that causes the contents of the new <acpi/acpi_io.h> file to be available for CONFIG_ACPI set only, so intel_opregion.o that depends on it should also depend on CONFIG_ACPI (and it really should not be compiled for CONFIG_ACPI unset anyway). References: https://01.org/linuxgraphics/sites/default/files/documentation/acpi_igd_opregion_spec.pdf Cc: Matthew Garrett <mjg59@srcf.ucam.org> Signed-off-by: Lv Zheng <lv.zheng@intel.com> Acked-by: Daniel Vetter <daniel.vetter@ffwll.ch> [rjw: Subject and changelog] Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
Diffstat (limited to 'drivers/acpi/nvs.c')
-rw-r--r--drivers/acpi/nvs.c1
1 files changed, 0 insertions, 1 deletions
diff --git a/drivers/acpi/nvs.c b/drivers/acpi/nvs.c
index 386a9fe497b4..ef28613d5192 100644
--- a/drivers/acpi/nvs.c
+++ b/drivers/acpi/nvs.c
@@ -12,7 +12,6 @@
#include <linux/mm.h>
#include <linux/slab.h>
#include <linux/acpi.h>
-#include <linux/acpi_io.h>
/* ACPI NVS regions, APEI may use it */