Commit 269e633d authored by Nathan Chancellor's avatar Nathan Chancellor Committed by Mathieu Poirier

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: fbca79e5 ("coresight: cti-sysfs: Re-use same functions for similar sysfs register accessors")
Signed-off-by: default avatarNathan Chancellor <nathan@kernel.org>
Reviewed-by: default avatarJames Clark <james.clark@arm.com>
Link: https://lore.kernel.org/r/20220901195055.1932340-1-nathan@kernel.orgSigned-off-by: default avatarMathieu Poirier <mathieu.poirier@linaro.org>
parent 0a98181f
...@@ -181,9 +181,9 @@ static ssize_t coresight_cti_reg_show(struct device *dev, ...@@ -181,9 +181,9 @@ static ssize_t coresight_cti_reg_show(struct device *dev,
} }
/* Write registers with power check only (no enable check). */ /* Write registers with power check only (no enable check). */
static ssize_t coresight_cti_reg_store(struct device *dev, static __maybe_unused ssize_t coresight_cti_reg_store(struct device *dev,
struct device_attribute *attr, struct device_attribute *attr,
const char *buf, size_t size) const char *buf, size_t size)
{ {
struct cti_drvdata *drvdata = dev_get_drvdata(dev->parent); struct cti_drvdata *drvdata = dev_get_drvdata(dev->parent);
struct cs_off_attribute *cti_attr = container_of(attr, struct cs_off_attribute, attr); struct cs_off_attribute *cti_attr = container_of(attr, struct cs_off_attribute, attr);
......
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