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wifi: cfg80211: Add debugfs support for multi-radio wiphy #90

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Merged
adrian-nicolau merged 1 commit into from
Jun 5, 2026
Merged

wifi: cfg80211: Add debugfs support for multi-radio wiphy #90

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4 changes: 4 additions & 0 deletions include/net/cfg80211.h
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Original file line number Diff line number Diff line change
Expand Up @@ -5683,9 +5683,13 @@ struct wiphy_iftype_akm_suites {
*
* @rts_threshold: RTS threshold (dot11RTSThreshold);
* -1 (default) = RTS/CTS disabled
* @radio_debugfsdir: Pointer to debugfs directory containing the radio-
* specific parameters.
* NULL (default) = Debugfs directory not created
*/
struct wiphy_radio_cfg {
u32 rts_threshold;
struct dentry *radio_debugfsdir;
};

/**
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15 changes: 15 additions & 0 deletions net/wireless/core.c
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Original file line number Diff line number Diff line change
Expand Up @@ -34,6 +34,9 @@
/* name for sysfs, %d is appended */
#define PHY_NAME "phy"

/* maximum length of radio debugfs directory name */
#define RADIO_DEBUGFSDIR_MAX_LEN 8

MODULE_AUTHOR("Johannes Berg");
MODULE_LICENSE("GPL");
MODULE_DESCRIPTION("wireless configuration support");
Expand Down Expand Up @@ -1042,6 +1045,18 @@ int wiphy_register(struct wiphy *wiphy)
/* add to debugfs */
rdev->wiphy.debugfsdir = debugfs_create_dir(wiphy_name(&rdev->wiphy),
ieee80211_debugfs_dir);
if (wiphy->n_radio > 0) {
int idx;
char radio_name[RADIO_DEBUGFSDIR_MAX_LEN];

for (idx = 0; idx < wiphy->n_radio; idx++) {
scnprintf(radio_name, sizeof(radio_name), "radio%d",
idx);
wiphy->radio_cfg[idx].radio_debugfsdir =
debugfs_create_dir(radio_name,
rdev->wiphy.debugfsdir);
}
}

cfg80211_debugfs_rdev_add(rdev);
nl80211_notify_wiphy(rdev, NL80211_CMD_NEW_WIPHY);
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