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drm/i915: make rc6 in sysfs functions conditional

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Commit 0136db586c merges rc6 information
into the power group. However, when compiled with CONFIG_PM not set,
modprobing i915 would taint since power_group_name is defined as NULL.

This patch makes these rc6 in sysfs functions conditional upon the
definition of the CONFIG_PM macro to avoid the above-mentioned problem.

Bugzilla: https://bugzilla.kernel.org/show_bug.cgi?id=45181
Cc: stable@vger.kernel.org
Tested-by: Kris Karas <bugs-a12@moonlit-rail.com>
Signed-off-by: Hunt Xu <mhuntxu@gmail.com>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
This commit is contained in:
Hunt Xu 2012-07-01 03:45:07 +00:00 committed by Daniel Vetter
parent bcf9dcc1e6
commit 5ab3633d69
1 changed files with 12 additions and 0 deletions
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12
drivers/gpu/drm/i915/i915_sysfs.c
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@ -32,6 +32,7 @@
#include "intel_drv.h"
#include "i915_drv.h"
#ifdef CONFIG_PM
static u32 calc_residency(struct drm_device *dev, const u32 reg)
{
struct drm_i915_private *dev_priv = dev->dev_private;
@ -224,3 +225,14 @@ void i915_teardown_sysfs(struct drm_device *dev)
device_remove_bin_file(&dev->primary->kdev, &dpf_attrs);
sysfs_unmerge_group(&dev->primary->kdev.kobj, &rc6_attr_group);
}
#else
void i915_setup_sysfs(struct drm_device *dev)
{
return;
}
void i915_teardown_sysfs(struct drm_device *dev)
{
return;
}
#endif /* CONFIG_PM */