From ae82bbac4c6c7927980c26d6981d5b1cf6228622 Mon Sep 17 00:00:00 2001
From: Nathan Chancellor <nathan@kernel.org>
Date: Mon, 11 Apr 2022 11:12:50 -0700
Subject: drm/msm/gpu: Avoid -Wunused-function with !CONFIG_PM_SLEEP
Git-commit: 390d645877ffd6dcb55f162d618045b2779217b3
Patch-mainline: v5.18-rc3
References: jsc#PED-1166 jsc#PED-1168 jsc#PED-1170 jsc#PED-1218 jsc#PED-1220 jsc#PED-1222 jsc#PED-1223 jsc#PED-1225
When building with CONFIG_PM=y and CONFIG_PM_SLEEP=n (such as ARCH=riscv
allmodconfig), the following warnings/errors occur:
drivers/gpu/drm/msm/adreno/adreno_device.c:679:12: error: 'adreno_system_resume' defined but not used [-Werror=unused-function]
679 | static int adreno_system_resume(struct device *dev)
| ^~~~~~~~~~~~~~~~~~~~
drivers/gpu/drm/msm/adreno/adreno_device.c:655:12: error: 'adreno_system_suspend' defined but not used [-Werror=unused-function]
655 | static int adreno_system_suspend(struct device *dev)
| ^~~~~~~~~~~~~~~~~~~~~
cc1: all warnings being treated as errors
These functions are only used in SET_SYSTEM_SLEEP_PM_OPS(), which
evaluates to empty when CONFIG_PM_SLEEP is not set, making these
functions unused.
To resolve this, use the SYSTEM_SLEEP_PM_OPS() and RUNTIME_PM_OPS()
macros, which were introduced in commit 1a3c7bb08826 ("PM: core: Add new
*_PM_OPS macros, deprecate old ones"). They are designed to avoid these
compiler warnings while still guarding their use on
CONFIG_PM{,_SLEEP}=y.
Fixes: 7e4167c9e021 ("drm/msm/gpu: Park scheduler threads for system suspend")
Signed-off-by: Nathan Chancellor <nathan@kernel.org>
Link: https://lore.kernel.org/r/20220411181249.2758344-1-nathan@kernel.org
Signed-off-by: Rob Clark <robdclark@chromium.org>
Acked-by: Patrik Jakobsson <pjakobsson@suse.de>
---
drivers/gpu/drm/msm/adreno/adreno_device.c | 7 ++-----
1 file changed, 2 insertions(+), 5 deletions(-)
diff --git a/drivers/gpu/drm/msm/adreno/adreno_device.c b/drivers/gpu/drm/msm/adreno/adreno_device.c
index 661dfa7681fb..8706bcdd1472 100644
--- a/drivers/gpu/drm/msm/adreno/adreno_device.c
+++ b/drivers/gpu/drm/msm/adreno/adreno_device.c
@@ -599,7 +599,6 @@ static const struct of_device_id dt_match[] = {
{}
};
-#ifdef CONFIG_PM
static int adreno_runtime_resume(struct device *dev)
{
struct msm_gpu *gpu = dev_to_gpu(dev);
@@ -682,11 +681,9 @@ static int adreno_system_resume(struct device *dev)
return pm_runtime_force_resume(dev);
}
-#endif
-
static const struct dev_pm_ops adreno_pm_ops = {
- SET_SYSTEM_SLEEP_PM_OPS(adreno_system_suspend, adreno_system_resume)
- SET_RUNTIME_PM_OPS(adreno_runtime_suspend, adreno_runtime_resume, NULL)
+ SYSTEM_SLEEP_PM_OPS(adreno_system_suspend, adreno_system_resume)
+ RUNTIME_PM_OPS(adreno_runtime_suspend, adreno_runtime_resume, NULL)
};
static struct platform_driver adreno_driver = {
--
2.38.1