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kernel-module-nxp-wlan: fix automatic regulatory configuration 

mwifiex driver is not able to automatically download the corresponding
rgpower binary after receiving CountryIE beacon information from country
XX, so we have to do it manually running "iw reg set XX".

However, the driver considers country XX is already configured and
ignores the rgpower download request.

Fix it by not processing the countryIE information in the driver by
adding a patch from NXP that will be integrated in their next
official release.

https://onedigi.atlassian.net/browse/DEL-8974

Signed-off-by: Gonzalo Ruiz <Gonzalo.Ruiz@digi.com>
This commit is contained in:
Gonzalo Ruiz 2025-07-02 18:35:28 +02:00
parent b55f64207a
commit e2916408c3
2 changed files with 48 additions and 0 deletions
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47
meta-digi-arm/dynamic-layers/freescale-layer/recipes-kernel/kernel-modules/kernel-module-nxp-wlan/0001-mxm_wifiex-do-not-process-countryIE-internally.patch Normal file
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@ -0,0 +1,47 @@
From: Gonzalo Ruiz <Gonzalo.Ruiz@digi.com>
Date: Fri, 25 Jul 2025 09:44:32 +0200
Subject: [PATCH 1/1] mxm_wifiex: do not process countryIE internally
Driver does not support processing countryIE, however when argument
'country_ie_ignore=0' was set, driver could receive and store the
country code but not apply the country power table.
If a regulatory change was issued afterwards by the user (i.e. iw reg
set) for the same country, change request was ignored and the power
table was still not applied.
Correct that by ignoring the countryIE when there is a self-managed
wiphy registered.
Patch provided by NXP.
Signed-off-by: Gonzalo Ruiz <Gonzalo.Ruiz@digi.com>
---
mlinux/moal_sta_cfg80211.c | 14 ++++++++++++++
1 file changed, 14 insertions(+)
diff --git a/mlinux/moal_sta_cfg80211.c b/mlinux/moal_sta_cfg80211.c
index f30134c..32822ac 100644
--- a/mlinux/moal_sta_cfg80211.c
+++ b/mlinux/moal_sta_cfg80211.c
@@ -1847,6 +1847,20 @@ static int woal_process_country_ie(moal_private *priv, struct cfg80211_bss *bss)
mlan_status status = MLAN_STATUS_SUCCESS;
ENTER();
+
+ if (!priv) {
+ PRINTM(MERROR, "%s(): priv is NULL!\n", __func__);
+ LEAVE();
+ return 0;
+ }
+#if CFG80211_VERSION_CODE >= KERNEL_VERSION(4, 0, 0)
+ if (priv->wdev && priv->wdev->wiphy &&
+ (priv->wdev->wiphy->regulatory_flags & REGULATORY_WIPHY_SELF_MANAGED)) {
+ LEAVE();
+ return 0;
+ }
+#endif
+
rcu_read_lock();
country_ie = (u8 *)ieee80211_bss_get_ie(bss, WLAN_EID_COUNTRY);
if (!country_ie) {

1
meta-digi-arm/dynamic-layers/freescale-layer/recipes-kernel/kernel-modules/kernel-module-nxp-wlan_git.bbappend
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@ -8,6 +8,7 @@ SRC_URI:append = " \
file://watch_regdomain.sh \
file://watch-regdomain.service \
file://watch-regdomain.timer \
file://0001-mxm_wifiex-do-not-process-countryIE-internally.patch \
"
do_install:append () {