From mboxrd@z Thu Jan 1 00:00:00 1970 Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.remote-ip=91.218.175.99 ARC-Seal: i=1; d=subspace.kernel.org; s=arc20261015; a=rsa-sha256; cv=none; t=1794191705; b=H0DHEIeaqU+xPZ/Kx7E2DzI+CQtBCgyQRKaENTh4FyUrO6uKFewXWZUYg8N/VdkFpUgQ PYUnCgTjNDBz6InjSO3VF621LB+5gR5o0huxLLIvQdroBwLpNL0mijBkDV0U9JEiMbGdC V7sOKoDQxsP+so8K7O6y7SmbHZCetd0hskbe44iD5UiVj1MuA6ZUwvspz9yhM+PXqV+lA yeJSOnab0xHD4Eyu6f31SA7OjesrHAFvXIz0nsDJw6Kq8dw7Z0rGg6oKvWBo2+6DATuwX nLULTK+uENn7yBK2rsM9q5QsMNGUGb6KbYvUIc5oTWuDvDiASTI9l62jnKOtNUQ1DVg== ARC-Message-Signature: i=1; d=subspace.kernel.org; s=arc20261015; a=rsa-sha256; c=relaxed/relaxed; t=1794191705; h=DMARC-Filter:X-Envelope-To:DKIM-Signature:X-Envelope-To:Received: X-Mizu-Trace-ID:X-Migadu-Flow:From:To:Cc:Subject:Date:Message-Id: X-Mailer:In-Reply-To:References:MIME-Version: Content-Transfer-Encoding; bh=Pld/ypOEzvUZ1Xv2JYaevgXucwA7AzT9S4ayBCKuL5Y=; b=qadpgAc1hsN9ZagwG49Z2h3o6apPaHr+WRUrg3htZqvstzCwLJYlbxjseoOkLxypdxF3 XJnseukKmvGONsjiUXWtTRZPGyRKZoWRXX9t8dYg+4Xmho0FykPHb77TjnXSdM9S2zlfW 0nDGH0x7s/y/5NyZUMwUZ2QlNrtvL0txQAPOyKX/4t9MXg8F7VYkxkF3q34g3Ujid1190 vk5KRL7G7KUergETtQDB23U7sFyW1YoFt6WycW4m1qs0RvZHVR22Pj6upgiHIui7C4Sx7 50qU0tAuOLmXrJOxgc/kdpknqGvVNHXmddUhz7Mj58WP+w4E+JQNuifvGUz33HpDUPw== ARC-Authentication-Results: i=1; smtp.subspace.kernel.org; dmarc=pass header.from=linux.dev; spf=pass smtp.mailfrom=linux.dev; dkim=pass header.d=linux.dev header.i=@linux.dev header.a=rsa-sha256 header.s=key1 header.b=teqADy5g; arc=none smtp.remote-ip=91.218.175.99 Received: from mta0.migadu.com (out-99.mta0.migadu.com [91.218.175.99]) (using TLSv1.3 with cipher TLS_AES_128_GCM_SHA256 (128/128 bits) key-exchange X25519 server-signature ECDSA (prime256v1) server-digest SHA256) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id 6E014606A322 for ; Mon, 9 Nov 2026 02:35:04 +0000 (UTC) DMARC-Filter: OpenDMARC Filter v1.4.2 smtp.subspace.kernel.org 6E014606A322 Authentication-Results: smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=linux.dev Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=linux.dev Authentication-Results: smtp.subspace.kernel.org; dkim=pass (1024-bit key, unprotected) header.d=linux.dev header.i=@linux.dev header.a=rsa-sha256 header.s=key1 header.b=teqADy5g X-Envelope-To: stable@vger.kernel.org DKIM-Signature: a=rsa-sha256; bh=2lyP7MNsW9NOFL7Y9LVDi2zqIu+RzquUmDDPyYap5Rs=; c=simple/simple; d=linux.dev; h=from:to:subject:date:message-id:mime-version:content-type; s=key1; t=1794191702; v=1; x=1794796502; b=teqADy5gls3z69Ns7Kr74fMniykMQIWn/YKKXLPLdpQR7WOk+tuqgGCzKMeOxP9+KT6ujd7i 7AQ66/1S2b35G6K6ar77i+QecOEzbBEka2C6px+lHk4rFFPJ1QK0uH7ZQCH19TyU/lllD0gazNz FqREk8kOQZ9Arcq84w08PIcE= X-Envelope-To: stable@vger.kernel.org Received: by mta11.migadu.com with ESMTPS id 5df9f00c67852b27; Mon, 09 Nov 2026 02:35:02 +0000 X-Mizu-Trace-ID: 5df9f00c67852b27 X-Migadu-Flow: FLOW_OUT From: Yi Cong To: stable@vger.kernel.org Cc: Yi Cong , Felix Fietkau Subject: [PATCH 6.18.y] wifi: mt76: mt792x: fix negative errno truncation in offload capability Date: Mon, 9 Nov 2026 10:34:54 +0800 Message-Id: <20261109023454.52603-1-cong.yi@linux.dev> X-Mailer: git-send-email 2.25.1 In-Reply-To: <20261107050921-failed-6.18-d0115096429c@kernel.org> References: <20261107050921-failed-6.18-d0115096429c@kernel.org> 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 From: Yi Cong 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 (cherry picked from commit d0115096429ca090a592770c7645f9553a839954) --- 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 96c50a501c1a..d00807075c71 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; -- 2.25.1