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=1794590122; b=dmaD8EAUPn1FEsAZDt6HAcKBJy0nOpEDR+EIU177F2B9PqpOk4AELYqZ5yu1T2fFJC0x 6WvV2jVuR0PYupvNGebzAq/NKGF12eYaOdM5F+iHeH2ga0jlRGMGRVGWBPVKELEAgJE5P 0n2gLQONP2dFJMwV8dT3KVO14sKZr5T9zX4twenlIXfLPN0Rz/gSGvivSq+Tti8SH33a0 PvLnq4taw0tmTGmLVh8mszVU9MVp7SAERhPjkRtKKVk+akUyK23x/Vl3fIMQCMMYFspSB fdpIRJf+Uv6qRDpKhlANby7NQFfsopNZBA/ikfLvvX6UkL2GA4QfXsahtiZM1CHs84A== ARC-Message-Signature: i=1; d=subspace.kernel.org; s=arc20261015; a=rsa-sha256; c=relaxed/relaxed; t=1794590122; 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=wv+5rBgJNtAGxiz8okwskAsVd/vc1cVUNYdic792Ves=; b=IRviKaSeHW2g5xlAE9RYxiGX5CtNsqWq01suRvLRSeeNqxfzUP8jAPuolxUkQBjUdvsE P4CPMTYaiO0hzycqp+sLAMfyKWCL5NFV1+fMpQw5MRUHX3qTlLlrdwvu9yDxuhZdT80GN qqEPYFV/GLF6WA3nWgEuy2W6jtOqgNi6E7KrBlPpLZb2CrbAQnRLs22ZaIHlqY1C84VQM 5xRnF3I/Ik7UX/z68NqulLhZ2RP2tZ4JgYpxomYCgWqnTrKHoh9Ec7cF0db+KJ/RVhvA5 fqu5TD7VrZoqGACflln+eGMbVO5UD5kQ1jAtEpI9eyODidGz8FRTm3/f7thfpvC02FQ== 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=vE4JPDu7; 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 14CE1606B237; Fri, 13 Nov 2026 17:15:21 +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=vE4JPDu7 Received: by smtp.kernel.org (Postfix) with ESMTPSA id 77E6C1F000C6; Fri, 13 Nov 2026 17:15:21 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=linuxfoundation.org; s=korg; t=1794590121; bh=wv+5rBgJNtAGxiz8okwskAsVd/vc1cVUNYdic792Ves=; h=From:To:Cc:Subject:Date:In-Reply-To:References; b=vE4JPDu7q2akVut24SyYyo/a7BmTjTy41iK7KFR2ZSeeZ+cNPrDaYBsgED31OCp+x Z4w2LkTN53DmdHunpCXq99QRGQeRpPgwyOvFLaop1jmTXebpNqiHIOzSgdDjnhglW+ OA+1kFKxmkfs81sC+X4V+vYhO+IT6vC/QJuX1Q0c= 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 6.18 098/686] wifi: mt76: mt792x: fix negative errno truncation in offload capability Date: Fri, 13 Nov 2026 10:43:51 -0500 Message-ID: <20261113153824.183575355@linuxfoundation.org> X-Mailer: git-send-email 2.56.0 In-Reply-To: <20261113153820.902362109@linuxfoundation.org> References: <20261113153820.902362109@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 6.18-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 96c50a501c1a9..d00807075c71f 100644 --- a/drivers/net/wireless/mediatek/mt76/mt792x_core.c +++ b/drivers/net/wireless/mediatek/mt76/mt792x_core.c @@ -704,7 +704,7 @@ 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; @@ -766,13 +766,20 @@ 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 (!(*fw_features & MT792x_FW_CAP_CNM)) { ops->remain_on_channel = NULL; ops->cancel_remain_on_channel = NULL; -- 2.53.0