From mboxrd@z Thu Jan 1 00:00:00 1970 Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.remote-ip=100.103.45.18 ARC-Seal: i=1; d=subspace.kernel.org; s=arc20261015; a=rsa-sha256; cv=none; t=1794064546; b=b823Z/WqayNSci1Iw8ri3jRNdTVxFDsP/Gd/fQRVi2BZTV48aR2EXrPhn+KeoHPn5Hz0 yUIRr9crKQrmwUC62Xci8u1mR0ABhuD+C5IS7HdzqjEi/t3EmztOFfUesqL6qcvgg1b8T mcViA+ZK44LftKq6+VAOnClQdQ1CDL7u67Xklvv9oufffXJYlQqGJ2TJLGQebYGt7jjVt KmIloFIYqo7a6CNTwjhWGa31G+HK5/2elzQKL7pcL8g7HKA5ezPtteW/9cg5+vZZJtcBz sfLyGqXtSSYlm8GeGONOFWk7A+ibs88hBDvUBO+jhoNnLwjeqNNiYmvn0tQLcV6sbSg== ARC-Message-Signature: i=1; d=subspace.kernel.org; s=arc20261015; a=rsa-sha256; c=relaxed/relaxed; t=1794064546; h=Received:DKIM-Signature:From:To:Cc:Subject:Date:Message-ID:X-Mailer: In-Reply-To:References:User-Agent:X-stable:X-Patchwork-Hint: MIME-Version:Content-Transfer-Encoding; bh=nxomo+oUjoFhQ8rLWj4uWxhhyduruB7seHpIOrvBeNU=; b=Jpqr3p/EmqSQhX7+AXG31DajkghR4rGZkNeWubxhNYM9Go7Fi0GlYsiymWue25AP1Asz SJEVpZfutT1ic3NtxHcxl0wqqgHP9m8C0r+BGouhcKqmi6MXBJi9hY1paWneHZhzXqKUA xzooCe8UnBwxGvPdPtJ+PUR/2b+QumSmAWw/1UOMbNC7SknwScaE7yriHc1u1sdH0gWOr JyfbOwUHCgZefSJP92Xpb+1lcUzBhfoGlhRorPhoCsUwrXTpsWdu0RyUSzn5lA5sM7Bsw UvKwfhRPNiUZYg3UPqT5ajnmcMBNzhGIsARNaV/hXoowMrybLl8wawpVg9S7NsIqcVQ== ARC-Authentication-Results: i=1; smtp.subspace.kernel.org; dkim=pass header.d=linuxfoundation.org header.i=@linuxfoundation.org header.a=rsa-sha256 header.s=korg header.b=uJZAtdSj; arc=none smtp.remote-ip=100.103.45.18 Received: from smtp.kernel.org (quasi.space.kernel.org [100.103.45.18]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits) key-exchange X25519 server-signature ECDSA (prime256v1)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id 7BE9D606B8A6; Sat, 7 Nov 2026 15:15:46 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; dkim=pass (1024-bit key) header.d=linuxfoundation.org header.i=@linuxfoundation.org header.a=rsa-sha256 header.s=korg header.b=uJZAtdSj Received: by smtp.kernel.org (Postfix) with ESMTPSA id 2A7191F008AB; Sat, 7 Nov 2026 15:15:46 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=linuxfoundation.org; s=korg; t=1794064546; bh=nxomo+oUjoFhQ8rLWj4uWxhhyduruB7seHpIOrvBeNU=; h=From:To:Cc:Subject:Date:In-Reply-To:References; b=uJZAtdSjyXkEXsSGr+0O+0npTRfm061xvFlAIj73A31tcdMxVHrxRQ41mjSduQ3nh wcLGtkXomIyGadaVkgEmuliXZ1u+Kf+chHbtOlsr33No3oLGrzIlGD3sf0GuUe7VxL RSbu2dFXVQKNMD7RUPkbWLm5jtaroxxLIV0u/7ys= From: Greg Kroah-Hartman To: stable@vger.kernel.org Cc: Greg Kroah-Hartman , patches@lists.linux.dev, Yi Cong , Felix Fietkau , Sasha Levin Subject: [PATCH 7.3 0545/1257] wifi: mt76: mt792x: fix negative errno truncation in offload capability Date: Sat, 7 Nov 2026 08:47:21 -0500 Message-ID: <20261107134954.450571409@linuxfoundation.org> X-Mailer: git-send-email 2.56.0 In-Reply-To: <20261107134939.434104957@linuxfoundation.org> References: <20261107134939.434104957@linuxfoundation.org> User-Agent: quilt/0.69 X-stable: review X-Patchwork-Hint: ignore X-Mailing-List: stable@vger.kernel.org List-Id: List-Post: List-Help: List-Subscribe: List-Unsubscribe: List-Owner: Precedence: list MIME-Version: 1.0 Content-Transfer-Encoding: 8bit 7.3-stable review patch. If anyone has any objections, please let me know. ------------------ From: Yi Cong [ Upstream commit d0115096429ca090a592770c7645f9553a839954 ] Returning a negative errno as u8 turned -ENOENT into 0xfe, wrongly enabling CNM and NAN caps. Return int and default to no caps on error. Fixes: e8a264ccd2de ("wifi: mt76: mt7921: move init shared code in mt792x-lib module") Cc: stable@vger.kernel.org Signed-off-by: Yi Cong Link: https://patch.msgid.link/20260824021429.43761-1-cong.yi@linux.dev Signed-off-by: Felix Fietkau Signed-off-by: Sasha Levin --- drivers/net/wireless/mediatek/mt76/mt792x_core.c | 11 +++++++++-- 1 file changed, 9 insertions(+), 2 deletions(-) diff --git a/drivers/net/wireless/mediatek/mt76/mt792x_core.c b/drivers/net/wireless/mediatek/mt76/mt792x_core.c index f56f03bfe3874..3ce6c6ceac81c 100644 --- a/drivers/net/wireless/mediatek/mt76/mt792x_core.c +++ b/drivers/net/wireless/mediatek/mt76/mt792x_core.c @@ -858,7 +858,7 @@ int mt792x_init_wiphy(struct ieee80211_hw *hw) } EXPORT_SYMBOL_GPL(mt792x_init_wiphy); -static u8 +static int mt792x_get_offload_capability(struct device *dev, const char *fw_wm) { const struct mt76_connac2_fw_trailer *hdr; @@ -927,13 +927,20 @@ mt792x_get_mac80211_ops(struct device *dev, void *drv_data, u8 *fw_features) { struct ieee80211_ops *ops; + int ret; ops = devm_kmemdup(dev, mac80211_ops, sizeof(struct ieee80211_ops), GFP_KERNEL); if (!ops) return NULL; - *fw_features = mt792x_get_offload_capability(dev, drv_data); + ret = mt792x_get_offload_capability(dev, drv_data); + if (ret < 0) { + dev_warn(dev, "failed to read firmware offload caps: %d\n", ret); + *fw_features = 0; + } else { + *fw_features = ret; + } if (mt792x_needs_cnm_runtime(drv_data)) *fw_features |= MT792x_FW_CAP_CNM; -- 2.53.0