Use consistently u8 for sdw link index. The id is limited to 4, u8 is
adequate in size to store it.
This change will also fixes the following compiler warning/error (W=1):
sound/hda/intel-sdw-acpi.c: In function ‘sdw_intel_acpi_scan’:
sound/hda/intel-sdw-acpi.c:34:35: error: ‘-subproperties’ directive output may be truncated writing 14 bytes into a region of size between 7 and 17 [-Werror=format-truncation=]
34 | "mipi-sdw-link-%d-subproperties", i);
| ^~~~~~~~~~~~~~
In function ‘is_link_enabled’,
inlined from ‘sdw_intel_scan_controller’ at sound/hda/intel-sdw-acpi.c:106:8,
inlined from ‘sdw_intel_acpi_scan’ at sound/hda/intel-sdw-acpi.c:180:9:
sound/hda/intel-sdw-acpi.c:33:9: note: ‘snprintf’ output between 30 and 40 bytes into a destination of size 32
33 | snprintf(name, sizeof(name),
| ^~~~~~~~~~~~~~~~~~~~~~~~~~~~
34 | "mipi-sdw-link-%d-subproperties", i);
| ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
cc1: all warnings being treated as errors
The warnings got brought to light by a recent patch upstream:
commit
6d4ab2e97dcf ("extrawarn: enable format and stringop overflow warnings in W=1")
Signed-off-by: Peter Ujfalusi <peter.ujfalusi@linux.intel.com>
Reviewed-by: Pierre-Louis Bossart <pierre-louis.bossart@linux.intel.com>
Link: https://lore.kernel.org/r/20230912162617.29178-1-peter.ujfalusi@linux.intel.com
Signed-off-by: Takashi Iwai <tiwai@suse.de>
module_param_named(sdw_link_mask, ctrl_link_mask, int, 0444);
MODULE_PARM_DESC(sdw_link_mask, "Intel link mask (one bit per link)");
-static bool is_link_enabled(struct fwnode_handle *fw_node, int i)
+static bool is_link_enabled(struct fwnode_handle *fw_node, u8 idx)
{
struct fwnode_handle *link;
char name[32];
/* Find master handle */
snprintf(name, sizeof(name),
- "mipi-sdw-link-%d-subproperties", i);
+ "mipi-sdw-link-%hhu-subproperties", idx);
link = fwnode_get_named_child_node(fw_node, name);
if (!link)
sdw_intel_scan_controller(struct sdw_intel_acpi_info *info)
{
struct acpi_device *adev = acpi_fetch_acpi_dev(info->handle);
- int ret, i;
- u8 count;
+ u8 count, i;
+ int ret;
if (!adev)
return -EINVAL;