From: Nathan Chancellor Date: Thu, 1 Sep 2022 19:50:55 +0000 (-0700) Subject: coresight: cti-sysfs: Mark coresight_cti_reg_store() as __maybe_unused X-Git-Tag: v6.1-rc5~262^2~58^2~6 X-Git-Url: http://review.tizen.org/git/?a=commitdiff_plain;h=269e633dad16c951449c99cc3bfce46110f5029e;p=platform%2Fkernel%2Flinux-starfive.git coresight: cti-sysfs: Mark coresight_cti_reg_store() as __maybe_unused When building without CONFIG_CORESIGHT_CTI_INTEGRATION_REGS, there is a warning about coresight_cti_reg_store() being unused in the file: drivers/hwtracing/coresight/coresight-cti-sysfs.c:184:16: warning: 'coresight_cti_reg_store' defined but not used [-Wunused-function] 184 | static ssize_t coresight_cti_reg_store(struct device *dev, | ^~~~~~~~~~~~~~~~~~~~~~~ This is expected as coresight_cti_reg_store() is only used in the coresight_cti_reg_rw macro, which is only used in a block guarded by CONFIG_CORESIGHT_CTI_INTEGRATION_REGS. Mark coresight_cti_reg_store() as __maybe_unused to clearly indicate that the function may be unused depending on the configuration. Fixes: fbca79e55429 ("coresight: cti-sysfs: Re-use same functions for similar sysfs register accessors") Signed-off-by: Nathan Chancellor Reviewed-by: James Clark Link: https://lore.kernel.org/r/20220901195055.1932340-1-nathan@kernel.org Signed-off-by: Mathieu Poirier --- diff --git a/drivers/hwtracing/coresight/coresight-cti-sysfs.c b/drivers/hwtracing/coresight/coresight-cti-sysfs.c index 478b8d3..6d59c815 100644 --- a/drivers/hwtracing/coresight/coresight-cti-sysfs.c +++ b/drivers/hwtracing/coresight/coresight-cti-sysfs.c @@ -181,9 +181,9 @@ static ssize_t coresight_cti_reg_show(struct device *dev, } /* Write registers with power check only (no enable check). */ -static ssize_t coresight_cti_reg_store(struct device *dev, - struct device_attribute *attr, - const char *buf, size_t size) +static __maybe_unused ssize_t coresight_cti_reg_store(struct device *dev, + struct device_attribute *attr, + const char *buf, size_t size) { struct cti_drvdata *drvdata = dev_get_drvdata(dev->parent); struct cs_off_attribute *cti_attr = container_of(attr, struct cs_off_attribute, attr);