From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org Received: from bombadil.infradead.org (bombadil.infradead.org [198.137.202.133]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.lore.kernel.org (Postfix) with ESMTPS id C9BC5C77B7F for ; Mon, 17 Apr 2023 20:54:59 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=lists.infradead.org; s=bombadil.20210309; h=Sender: Content-Transfer-Encoding:Content-Type:List-Subscribe:List-Help:List-Post: List-Archive:List-Unsubscribe:List-Id:MIME-Version:Message-Id:Date:Subject:Cc :To:From:Reply-To:Content-ID:Content-Description:Resent-Date:Resent-From: Resent-Sender:Resent-To:Resent-Cc:Resent-Message-ID:In-Reply-To:References: List-Owner; bh=Ip9rls8pQAxj6OlVgFcmD/fkkXndJtoyRuSqJZSa1TI=; b=TrQ+mrbIWCFmwx tXzNSffzIysOj0OEsptBxBmoH6XTtXjZa8cvq3mQHJoeuBAehWkVKSpyPhWHiZsLZT1En1dpYu1hQ tygR/HU3Nx9FIgpXkHy8oIkvPih57M+44Tgi++7cssneqTwHoGWTKM2JNsxNHOg2/2oxMtCmpLJib 3s7mlKsQQ8sa8A0/ALB2TJDP83hpMPDbgtntClssj6+c1w1e5CBr6cV8HG5IqH0JfBes7/u+IH8wR VDhA+rSZfVX/nH9TdlgcSAy8+yZye1wOeVmm1IpaiQJK/JHbVvhLZy9+xpGSAGBy0WXlvDMWS+Acd 5TtZfmiLlYh+Ty05kYyw==; Received: from localhost ([::1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.96 #2 (Red Hat Linux)) id 1poVsJ-00HaUz-1Z for ath12k@archiver.kernel.org; Mon, 17 Apr 2023 20:54:59 +0000 Received: from dfw.source.kernel.org ([139.178.84.217]) by bombadil.infradead.org with esmtps (Exim 4.96 #2 (Red Hat Linux)) id 1poVsF-00HaTy-2U; Mon, 17 Apr 2023 20:54:57 +0000 Received: from smtp.kernel.org (relay.kernel.org [52.25.139.140]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by dfw.source.kernel.org (Postfix) with ESMTPS id 4C41562A5B; Mon, 17 Apr 2023 20:54:55 +0000 (UTC) Received: by smtp.kernel.org (Postfix) with ESMTPSA id 5FC1FC433EF; Mon, 17 Apr 2023 20:54:51 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1681764894; bh=moYYi4bJv8zGeQ0K0+Ne+l5Pi5iujfuXRILl1xpKhX4=; h=From:To:Cc:Subject:Date:From; b=U80ja+1SzcQ202GY/MR/HKPGvEWUeI+Xc2gUAU5uNT5lGU/HSaRvyE8BxOaMLO5tL xRIasBX5T/QwtzhQ+2rLuEKOV9HrGGBzOiYPEOxooWyM6UqZAi9oHAwYHb5ZHo/9t+ VavPigphAxfhdnYbUUn4LS17ceOwbrjNzAmhNzbP67u7QLV6PG9jI9BunFH9GieKBI Rf4w/fSR1d4GJfu2B8zueaVftAseqsHM73MTVSRDQlMQGrlNarbhp6ks3tR8epgFrn i4d56r8ZG895VfwH+ys+nUe4wioyJptqFqAChbslE+wIrTTtBaS4FJV5Vg+L1GmdSp TBCz7Lip00L9w== From: Arnd Bergmann To: Kalle Valo , "David S. Miller" , Eric Dumazet , Jakub Kicinski , Paolo Abeni Cc: Arnd Bergmann , Johannes Berg , Manikanta Pubbisetty , Wen Gong , Baochen Qiang , Sowmiya Sree Elavalagan , ath11k@lists.infradead.org, linux-wireless@vger.kernel.org, netdev@vger.kernel.org, linux-kernel@vger.kernel.org, ath12k@lists.infradead.org Subject: [PATCH] wireless: ath: work around false-positive stringop-overread warning Date: Mon, 17 Apr 2023 22:54:20 +0200 Message-Id: <20230417205447.1800912-1-arnd@kernel.org> X-Mailer: git-send-email 2.39.2 MIME-Version: 1.0 X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20230417_135455_892480_0D7E2007 X-CRM114-Status: GOOD ( 10.34 ) X-BeenThere: ath12k@lists.infradead.org X-Mailman-Version: 2.1.34 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Sender: "ath12k" Errors-To: ath12k-bounces+ath12k=archiver.kernel.org@lists.infradead.org From: Arnd Bergmann In a rare arm64 randconfig build, I got multiple warnings for ath11k and ath12k: In function 'ath11k_peer_assoc_h_ht', inlined from 'ath11k_peer_assoc_prepare' at drivers/net/wireless/ath/ath11k/mac.c:2665:2: drivers/net/wireless/ath/ath11k/mac.c:1709:13: error: 'ath11k_peer_assoc_h_ht_masked' reading 10 bytes from a region of size 0 [-Werror=stringop-overread] 1709 | if (ath11k_peer_assoc_h_ht_masked(ht_mcs_mask)) | ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ This happens whenever gcc-13 fails to inline one of the functions that take a fixed-length array argument but gets passed a pointer. Change these functions to all take a regular pointer argument instead. Signed-off-by: Arnd Bergmann --- drivers/net/wireless/ath/ath11k/mac.c | 12 ++++++------ drivers/net/wireless/ath/ath12k/mac.c | 8 ++++---- 2 files changed, 10 insertions(+), 10 deletions(-) diff --git a/drivers/net/wireless/ath/ath11k/mac.c b/drivers/net/wireless/ath/ath11k/mac.c index cad832e0e6b8..393669be7847 100644 --- a/drivers/net/wireless/ath/ath11k/mac.c +++ b/drivers/net/wireless/ath/ath11k/mac.c @@ -433,7 +433,7 @@ u8 ath11k_mac_bitrate_to_idx(const struct ieee80211_supported_band *sband, } static u32 -ath11k_mac_max_ht_nss(const u8 ht_mcs_mask[IEEE80211_HT_MCS_MASK_LEN]) +ath11k_mac_max_ht_nss(const u8 *ht_mcs_mask) { int nss; @@ -445,7 +445,7 @@ ath11k_mac_max_ht_nss(const u8 ht_mcs_mask[IEEE80211_HT_MCS_MASK_LEN]) } static u32 -ath11k_mac_max_vht_nss(const u16 vht_mcs_mask[NL80211_VHT_NSS_MAX]) +ath11k_mac_max_vht_nss(const u16 *vht_mcs_mask) { int nss; @@ -457,7 +457,7 @@ ath11k_mac_max_vht_nss(const u16 vht_mcs_mask[NL80211_VHT_NSS_MAX]) } static u32 -ath11k_mac_max_he_nss(const u16 he_mcs_mask[NL80211_HE_NSS_MAX]) +ath11k_mac_max_he_nss(const u16 *he_mcs_mask) { int nss; @@ -1658,7 +1658,7 @@ static void ath11k_peer_assoc_h_rates(struct ath11k *ar, } static bool -ath11k_peer_assoc_h_ht_masked(const u8 ht_mcs_mask[IEEE80211_HT_MCS_MASK_LEN]) +ath11k_peer_assoc_h_ht_masked(const u8 *ht_mcs_mask) { int nss; @@ -1670,7 +1670,7 @@ ath11k_peer_assoc_h_ht_masked(const u8 ht_mcs_mask[IEEE80211_HT_MCS_MASK_LEN]) } static bool -ath11k_peer_assoc_h_vht_masked(const u16 vht_mcs_mask[]) +ath11k_peer_assoc_h_vht_masked(const u16 *vht_mcs_mask) { int nss; @@ -2065,7 +2065,7 @@ static u16 ath11k_peer_assoc_h_he_limit(u16 tx_mcs_set, } static bool -ath11k_peer_assoc_h_he_masked(const u16 he_mcs_mask[NL80211_HE_NSS_MAX]) +ath11k_peer_assoc_h_he_masked(const u16 *he_mcs_mask) { int nss; diff --git a/drivers/net/wireless/ath/ath12k/mac.c b/drivers/net/wireless/ath/ath12k/mac.c index d683a0668989..ea2313b6b759 100644 --- a/drivers/net/wireless/ath/ath12k/mac.c +++ b/drivers/net/wireless/ath/ath12k/mac.c @@ -381,7 +381,7 @@ u8 ath12k_mac_bitrate_to_idx(const struct ieee80211_supported_band *sband, } static u32 -ath12k_mac_max_ht_nss(const u8 ht_mcs_mask[IEEE80211_HT_MCS_MASK_LEN]) +ath12k_mac_max_ht_nss(const u8 *ht_mcs_mask) { int nss; @@ -393,7 +393,7 @@ ath12k_mac_max_ht_nss(const u8 ht_mcs_mask[IEEE80211_HT_MCS_MASK_LEN]) } static u32 -ath12k_mac_max_vht_nss(const u16 vht_mcs_mask[NL80211_VHT_NSS_MAX]) +ath12k_mac_max_vht_nss(const u16 *vht_mcs_mask) { int nss; @@ -1303,7 +1303,7 @@ static void ath12k_peer_assoc_h_rates(struct ath12k *ar, } static bool -ath12k_peer_assoc_h_ht_masked(const u8 ht_mcs_mask[IEEE80211_HT_MCS_MASK_LEN]) +ath12k_peer_assoc_h_ht_masked(const u8 *ht_mcs_mask) { int nss; @@ -1315,7 +1315,7 @@ ath12k_peer_assoc_h_ht_masked(const u8 ht_mcs_mask[IEEE80211_HT_MCS_MASK_LEN]) } static bool -ath12k_peer_assoc_h_vht_masked(const u16 vht_mcs_mask[NL80211_VHT_NSS_MAX]) +ath12k_peer_assoc_h_vht_masked(const u16 *vht_mcs_mask) { int nss; -- 2.39.2 -- ath12k mailing list ath12k@lists.infradead.org https://lists.infradead.org/mailman/listinfo/ath12k