From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from smtp.kernel.org (aws-us-west-2-korg-mail-alma10-1.taild15c8.ts.net [100.103.45.18]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id E473C3B7746; Thu, 17 Sep 2026 18:05:26 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=100.103.45.18 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1789668328; cv=none; b=ue+ey5FtmbSFRnGfqEP/BVrYA6D1bXBdm5Wmgn1Q3D8HNeREuy8JNl3ATbseIrI3TAYvvOm6I0ORR1GHfwCz32RR3ZaQAhaRYbUiB3Wm3otTOznjgoD7UX2R4qxkAHmgJp+U2rr32vTzvzdX+fo4wH/1ci/iiFm6NlnwTvt6XSc= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1789668328; c=relaxed/simple; bh=V4ENdcEkeQLmzyoQLu46lo4y7l1c6JATgwmZQopY0D4=; h=From:To:Cc:Subject:Date:Message-ID:In-Reply-To:References: MIME-Version; b=MHaNRF2O//+QHr48YNSkoNTbgX5chZAtNmuCPQeCa2c8fZAbjAHXHZcQv6gwIKG3FAWWUrLvPeoUORpyDWHyGkkDTpcXPRu477wUrp0j/rv34hqh9zPK9HTD02BttJ2iIyY3EbFaUq11j6uotx6cUHL7bGqg6bIi4d/dnZAMvmc= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dkim=pass (1024-bit key) header.d=linuxfoundation.org header.i=@linuxfoundation.org header.b=vcniiKhI; arc=none smtp.client-ip=100.103.45.18 Authentication-Results: smtp.subspace.kernel.org; dkim=pass (1024-bit key) header.d=linuxfoundation.org header.i=@linuxfoundation.org header.b="vcniiKhI" Received: by smtp.kernel.org (Postfix) with ESMTPSA id 461FA1F000FF; Thu, 17 Sep 2026 18:05:26 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=linuxfoundation.org; s=korg; t=1789668326; bh=/D1DEnbvwplLEYmntHEaDeyYUJ29ooWF4pxetCl5gsk=; h=From:To:Cc:Subject:Date:In-Reply-To:References; b=vcniiKhIeMwUInRDxmCjsdQ3CeSyVURhIsTrzLGuUjoDZls8LlB2y9lGWFDKs6phe dZyQuEmZuQRfdEm+J0gMZXtswqP6sRJQVRLErwRJ9vm93PIvlv7ACRYSy0ZlE++xWk HbiOqBnJ1lmgnKzt3e5Vjgbt3Y0+QJgRiS2dwBmE= From: Greg Kroah-Hartman To: stable@vger.kernel.org Cc: Greg Kroah-Hartman , patches@lists.linux.dev, Corentin Labbe , Stanislaw Gruszka , Johannes Berg , Sasha Levin Subject: [PATCH 6.12 0388/1102] wifi: ralink: RT2X00: init EEPROM properly Date: Thu, 17 Sep 2026 16:05:31 +0100 Message-ID: <20260917151549.397372271@linuxfoundation.org> X-Mailer: git-send-email 2.55.0 In-Reply-To: <20260917151539.408551884@linuxfoundation.org> References: <20260917151539.408551884@linuxfoundation.org> User-Agent: quilt/0.69 X-stable: review X-Patchwork-Hint: ignore Precedence: bulk X-Mailing-List: patches@lists.linux.dev List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Transfer-Encoding: 8bit 6.12-stable review patch. If anyone has any objections, please let me know. ------------------ From: Corentin Labbe [ Upstream commit 0a2581cbae9e442835f68d22044157db61cdf54d ] I have an hostapd setup with a 01:00.0 Network controller: Ralink corp. RT2790 Wireless 802.11n 1T/2R PCIe The setup work fine on 6.18.26-gentoo It breaks on 6.18.33-gentoo (and still broken on 6.18.37) I found an hint in dmesg: On 6.18.26-gentoo I see: May 31 15:48:45 trash01 kernel: ieee80211 phy0: rt2x00_set_rf: Info - RF chipset 0003 detected On 6.18.33-gentoo I see: May 31 15:22:57 trash01 kernel: ieee80211 phy0: rt2x00_set_rf: Info - RF chipset 0006 detected The RF chipset seems badly detected. The problem was the EEPROM which was badly initialized. Probably the origin was in some PCI change but unfortunately I couldn't play to bisect/reboot often the board with this card to do it. Signed-off-by: Corentin Labbe Acked-by: Stanislaw Gruszka Link: https://patch.msgid.link/20260703134932.3786771-1-clabbe@baylibre.com Signed-off-by: Johannes Berg Signed-off-by: Sasha Levin --- drivers/net/wireless/ralink/rt2x00/rt2400pci.c | 2 +- drivers/net/wireless/ralink/rt2x00/rt2500pci.c | 2 +- drivers/net/wireless/ralink/rt2x00/rt2800pci.c | 2 +- drivers/net/wireless/ralink/rt2x00/rt61pci.c | 2 +- 4 files changed, 4 insertions(+), 4 deletions(-) diff --git a/drivers/net/wireless/ralink/rt2x00/rt2400pci.c b/drivers/net/wireless/ralink/rt2x00/rt2400pci.c index 42e21e9f303b2..15073b856adf9 100644 --- a/drivers/net/wireless/ralink/rt2x00/rt2400pci.c +++ b/drivers/net/wireless/ralink/rt2x00/rt2400pci.c @@ -1429,7 +1429,7 @@ static irqreturn_t rt2400pci_interrupt(int irq, void *dev_instance) */ static int rt2400pci_validate_eeprom(struct rt2x00_dev *rt2x00dev) { - struct eeprom_93cx6 eeprom; + struct eeprom_93cx6 eeprom = {}; u32 reg; u16 word; u8 *mac; diff --git a/drivers/net/wireless/ralink/rt2x00/rt2500pci.c b/drivers/net/wireless/ralink/rt2x00/rt2500pci.c index 36ddc5a69fa40..3536a0f311171 100644 --- a/drivers/net/wireless/ralink/rt2x00/rt2500pci.c +++ b/drivers/net/wireless/ralink/rt2x00/rt2500pci.c @@ -1555,7 +1555,7 @@ static irqreturn_t rt2500pci_interrupt(int irq, void *dev_instance) */ static int rt2500pci_validate_eeprom(struct rt2x00_dev *rt2x00dev) { - struct eeprom_93cx6 eeprom; + struct eeprom_93cx6 eeprom = {}; u32 reg; u16 word; u8 *mac; diff --git a/drivers/net/wireless/ralink/rt2x00/rt2800pci.c b/drivers/net/wireless/ralink/rt2x00/rt2800pci.c index 14c45aba836f2..853fd31d13629 100644 --- a/drivers/net/wireless/ralink/rt2x00/rt2800pci.c +++ b/drivers/net/wireless/ralink/rt2x00/rt2800pci.c @@ -108,7 +108,7 @@ static void rt2800pci_eepromregister_write(struct eeprom_93cx6 *eeprom) static int rt2800pci_read_eeprom_pci(struct rt2x00_dev *rt2x00dev) { - struct eeprom_93cx6 eeprom; + struct eeprom_93cx6 eeprom = {}; u32 reg; reg = rt2x00mmio_register_read(rt2x00dev, E2PROM_CSR); diff --git a/drivers/net/wireless/ralink/rt2x00/rt61pci.c b/drivers/net/wireless/ralink/rt2x00/rt61pci.c index d1cd5694e3c73..5dca2afb4b96c 100644 --- a/drivers/net/wireless/ralink/rt2x00/rt61pci.c +++ b/drivers/net/wireless/ralink/rt2x00/rt61pci.c @@ -2298,7 +2298,7 @@ static irqreturn_t rt61pci_interrupt(int irq, void *dev_instance) */ static int rt61pci_validate_eeprom(struct rt2x00_dev *rt2x00dev) { - struct eeprom_93cx6 eeprom; + struct eeprom_93cx6 eeprom = {}; u32 reg; u16 word; u8 *mac; -- 2.53.0