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[213.36.7.13]) by smtp.gmail.com with ESMTPSA id u10-20020a5d6aca000000b0033e9d9f891csm3825825wrw.58.2024.04.12.02.27.54 (version=TLS1_3 cipher=TLS_AES_128_GCM_SHA256 bits=128/128); Fri, 12 Apr 2024 02:27:54 -0700 (PDT) Mime-Version: 1.0 Content-Transfer-Encoding: quoted-printable Content-Type: text/plain; charset=UTF-8 Date: Fri, 12 Apr 2024 11:27:54 +0200 Message-Id: From: "Nicolas Escande" To: "Mingyen Hsieh" , , Cc: , , , , , , , , , , , , , , "Leon Yen" Subject: Re: [PATCH] wifi: mt76: mt7921: avoid undesired changes of the preset regulatory domain X-Mailer: aerc 0.17.0 References: <20240412085357.13756-1-mingyen.hsieh@mediatek.com> In-Reply-To: <20240412085357.13756-1-mingyen.hsieh@mediatek.com> X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20240412_022758_331117_789E2A92 X-CRM114-Status: GOOD ( 14.95 ) X-BeenThere: linux-mediatek@lists.infradead.org X-Mailman-Version: 2.1.34 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Sender: "Linux-mediatek" Errors-To: linux-mediatek-bounces+linux-mediatek=archiver.kernel.org@lists.infradead.org On Fri Apr 12, 2024 at 10:53 AM CEST, Mingyen Hsieh wrote: > From: Leon Yen > > Some countries have strict RF restrictions where changing the regulatory > domain dynamically based on the connected AP is not acceptable. > This patch disables Beacon country IE hinting when a valid country code > is set from usersland (e.g., by system using iw or CRDA). I always had trouble fully understanding the regulation but isn't the count= ry code IE sole purpose to adapt the regulatory of the client ?=20 > > Signed-off-by: Leon Yen > Signed-off-by: Ming Yen Hsieh > --- > drivers/net/wireless/mediatek/mt76/mt7921/init.c | 7 +++++++ > 1 file changed, 7 insertions(+) > > diff --git a/drivers/net/wireless/mediatek/mt76/mt7921/init.c b/drivers/n= et/wireless/mediatek/mt76/mt7921/init.c > index ef0c721d26e3..3c9a5fcd6924 100644 > --- a/drivers/net/wireless/mediatek/mt76/mt7921/init.c > +++ b/drivers/net/wireless/mediatek/mt76/mt7921/init.c > @@ -135,6 +135,13 @@ mt7921_regd_notifier(struct wiphy *wiphy, > dev->mt76.region =3D request->dfs_region; > dev->country_ie_env =3D request->country_ie_env; > =20 > + if (request->initiator =3D=3D NL80211_REGDOM_SET_BY_USER) { > + if (dev->mt76.alpha2[0] =3D=3D '0' && dev->mt76.alpha2[1] =3D=3D '0') > + wiphy->regulatory_flags &=3D ~REGULATORY_COUNTRY_IE_IGNORE; > + else > + wiphy->regulatory_flags |=3D REGULATORY_COUNTRY_IE_IGNORE; > + } > + > if (pm->suspended) > return; > =20