修改4g拨号为QMI,需要在系统里后台执行quectel-CM

hc

2024-10-22 8ac6c7a54ed1b98d142dce24b11c6de6a1e239a5

 kernel/drivers/net/wireless/ath/ath11k/debugfs.c
..
..
@@ -836,10 +836,6 @@
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 	if (test_bit(ATH11K_FLAG_REGISTERED, &ab->dev_flags))
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 		return 0;
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-	ab->debugfs_soc = debugfs_create_dir(ab->hw_params.name, ab->debugfs_ath11k);
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-	if (IS_ERR(ab->debugfs_soc))
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-		return PTR_ERR(ab->debugfs_soc);
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-
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 	debugfs_create_file("simulate_fw_crash", 0600, ab->debugfs_soc, ab,
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 			    &fops_simulate_fw_crash);
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..
..
@@ -857,15 +853,51 @@
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 int ath11k_debugfs_soc_create(struct ath11k_base *ab)
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 {
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-	ab->debugfs_ath11k = debugfs_create_dir("ath11k", NULL);
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+	struct dentry *root;
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+	bool dput_needed;
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+	char name[64];
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+	int ret;
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-	return PTR_ERR_OR_ZERO(ab->debugfs_ath11k);
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+	root = debugfs_lookup("ath11k", NULL);
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+	if (!root) {
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+		root = debugfs_create_dir("ath11k", NULL);
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+		if (IS_ERR_OR_NULL(root))
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+			return PTR_ERR(root);
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+
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+		dput_needed = false;
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+	} else {
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+		/* a dentry from lookup() needs dput() after we don't use it */
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+		dput_needed = true;
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+	}
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+
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+	scnprintf(name, sizeof(name), "%s-%s", ath11k_bus_str(ab->hif.bus),
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+		  dev_name(ab->dev));
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+
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+	ab->debugfs_soc = debugfs_create_dir(name, root);
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+	if (IS_ERR_OR_NULL(ab->debugfs_soc)) {
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+		ret = PTR_ERR(ab->debugfs_soc);
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+		goto out;
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+	}
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+
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+	ret = 0;
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+
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+out:
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+	if (dput_needed)
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+		dput(root);
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+
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+	return ret;
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 }
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 void ath11k_debugfs_soc_destroy(struct ath11k_base *ab)
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 {
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-	debugfs_remove_recursive(ab->debugfs_ath11k);
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-	ab->debugfs_ath11k = NULL;
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+	debugfs_remove_recursive(ab->debugfs_soc);
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+	ab->debugfs_soc = NULL;
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+
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+	/* We are not removing ath11k directory on purpose, even if it
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+	 * would be empty. This simplifies the directory handling and it's
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+	 * a minor cosmetic issue to leave an empty ath11k directory to
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+	 * debugfs.
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+	 */
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 }
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 void ath11k_debugfs_fw_stats_init(struct ath11k *ar)