Patch "ALSA: hda: intel-sdw-acpi: Use u8 type for link index" has been added to the 6.5-stable tree

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This is a note to let you know that I've just added the patch titled

    ALSA: hda: intel-sdw-acpi: Use u8 type for link index

to the 6.5-stable tree which can be found at:
    http://www.kernel.org/git/?p=linux/kernel/git/stable/stable-queue.git;a=summary

The filename of the patch is:
     alsa-hda-intel-sdw-acpi-use-u8-type-for-link-index.patch
and it can be found in the queue-6.5 subdirectory.

If you, or anyone else, feels it should not be added to the stable tree,
please let <stable@xxxxxxxxxxxxxxx> know about it.



commit 6b7fc5d596f0773aee256a871cc062b0862ff849
Author: Peter Ujfalusi <peter.ujfalusi@xxxxxxxxxxxxxxx>
Date:   Tue Sep 12 19:26:17 2023 +0300

    ALSA: hda: intel-sdw-acpi: Use u8 type for link index
    
    [ Upstream commit 485ddd519fbd89a9d9ac4b02be489e03cbbeebba ]
    
    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@xxxxxxxxxxxxxxx>
    Reviewed-by: Pierre-Louis Bossart <pierre-louis.bossart@xxxxxxxxxxxxxxx>
    Link: https://lore.kernel.org/r/20230912162617.29178-1-peter.ujfalusi@xxxxxxxxxxxxxxx
    Signed-off-by: Takashi Iwai <tiwai@xxxxxxx>
    Signed-off-by: Sasha Levin <sashal@xxxxxxxxxx>

diff --git a/sound/hda/intel-sdw-acpi.c b/sound/hda/intel-sdw-acpi.c
index 5cb92f7ccbcac..b57d72ea4503f 100644
--- a/sound/hda/intel-sdw-acpi.c
+++ b/sound/hda/intel-sdw-acpi.c
@@ -23,7 +23,7 @@ static int ctrl_link_mask;
 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];
@@ -31,7 +31,7 @@ static bool is_link_enabled(struct fwnode_handle *fw_node, int i)
 
 	/* 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)
@@ -51,8 +51,8 @@ static int
 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;



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