On Sat, Oct 22, 2016 at 4:48 AM, Baoyou Xie <baoyou.xie@xxxxxxxxxx> wrote: > We get 1 warning when building kernel with W=1: > drivers/gpu/drm/amd/amdgpu/amdgpu_pm.c:37:6: warning: no previous prototype for 'amdgpu_pm_acpi_event_handler' [-Wmissing-prototypes] > > In fact, this function is defined in > drivers/gpu/drm/amd/amdgpu/amdgpu_acpi.c, but should be declared > in a header file. So this patch moves the function declaration > to drivers/gpu/drm/amd/amdgpu/amdgpu.h. I want to try and avoid making amdgpu.h a random dumping ground for function defs. Let's put it in amdgpu_pm.h instead. How about the attached patch? Alex > > Signed-off-by: Baoyou Xie <baoyou.xie@xxxxxxxxxx> > --- > drivers/gpu/drm/amd/amdgpu/amdgpu.h | 2 ++ > drivers/gpu/drm/amd/amdgpu/amdgpu_acpi.c | 1 - > 2 files changed, 2 insertions(+), 1 deletion(-) > > diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu.h b/drivers/gpu/drm/amd/amdgpu/amdgpu.h > index 039b57e..c0bc42b 100644 > --- a/drivers/gpu/drm/amd/amdgpu/amdgpu.h > +++ b/drivers/gpu/drm/amd/amdgpu/amdgpu.h > @@ -2145,6 +2145,8 @@ void amdgpu_io_wreg(struct amdgpu_device *adev, u32 reg, u32 v); > u32 amdgpu_mm_rdoorbell(struct amdgpu_device *adev, u32 index); > void amdgpu_mm_wdoorbell(struct amdgpu_device *adev, u32 index, u32 v); > > +void amdgpu_pm_acpi_event_handler(struct amdgpu_device *adev); > + > /* > * Registers read & write functions. > */ > diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_acpi.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_acpi.c > index 5796539..d77d630 100644 > --- a/drivers/gpu/drm/amd/amdgpu/amdgpu_acpi.c > +++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_acpi.c > @@ -33,7 +33,6 @@ > #include "amd_acpi.h" > #include "atom.h" > > -extern void amdgpu_pm_acpi_event_handler(struct amdgpu_device *adev); > /* Call the ATIF method > */ > /** > -- > 2.7.4 > > _______________________________________________ > dri-devel mailing list > dri-devel@xxxxxxxxxxxxxxxxxxxxx > https://lists.freedesktop.org/mailman/listinfo/dri-devel
From 3714f3beec519d4e49ce6a482688ae98072979da Mon Sep 17 00:00:00 2001 From: Alex Deucher <alexander.deucher@xxxxxxx> Date: Mon, 24 Oct 2016 12:24:11 -0400 Subject: [PATCH] drm/amdgpu: amdgpu_pm_acpi_event_handler definition to a header file Add it to amdgpu_pm.h Fixes building kernel with W=1: drivers/gpu/drm/amd/amdgpu/amdgpu_pm.c:37:6: warning: no previous prototype for 'amdgpu_pm_acpi_event_handler' [-Wmissing-prototypes] Inspired by a similar patch from Baoyou Xie. Signed-off-by: Alex Deucher <alexander.deucher@xxxxxxx> --- drivers/gpu/drm/amd/amdgpu/amdgpu_acpi.c | 2 +- drivers/gpu/drm/amd/amdgpu/amdgpu_pm.h | 1 + 2 files changed, 2 insertions(+), 1 deletion(-) diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_acpi.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_acpi.c index 5796539..ec22e64 100644 --- a/drivers/gpu/drm/amd/amdgpu/amdgpu_acpi.c +++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_acpi.c @@ -30,10 +30,10 @@ #include <drm/drmP.h> #include <drm/drm_crtc_helper.h> #include "amdgpu.h" +#include "amdgpu_pm.h" #include "amd_acpi.h" #include "atom.h" -extern void amdgpu_pm_acpi_event_handler(struct amdgpu_device *adev); /* Call the ATIF method */ /** diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_pm.h b/drivers/gpu/drm/amd/amdgpu/amdgpu_pm.h index 5fd7734..7e14521 100644 --- a/drivers/gpu/drm/amd/amdgpu/amdgpu_pm.h +++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_pm.h @@ -28,6 +28,7 @@ int amdgpu_pm_sysfs_init(struct amdgpu_device *adev); void amdgpu_pm_sysfs_fini(struct amdgpu_device *adev); void amdgpu_pm_print_power_states(struct amdgpu_device *adev); void amdgpu_pm_compute_clocks(struct amdgpu_device *adev); +void amdgpu_pm_acpi_event_handler(struct amdgpu_device *adev); void amdgpu_dpm_thermal_work_handler(struct work_struct *work); void amdgpu_dpm_enable_uvd(struct amdgpu_device *adev, bool enable); void amdgpu_dpm_enable_vce(struct amdgpu_device *adev, bool enable); -- 2.5.5
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