From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from smtp.kernel.org (aws-us-west-2-korg-mail-1.web.codeaurora.org [10.30.226.201]) (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 6A4CE1A2389; Thu, 15 Jan 2026 17:39:06 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=10.30.226.201 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1768498746; cv=none; b=YZjEpe0YJUJoTIzOzpcfRz7fOLjDy+6nGSMqmDgW5YowUUZf/Z/Yb3TnIDLsHfGdlSQ4ULDxiZTYgv4QifLa3FC1yaZ7gaNye9ZcR57KP3v3QAADENgiv1TmxYIcPV2nkAU5UNxqkd99/uDWdXpA/m1sWjWmbOFXmJq/ZEglCg0= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1768498746; c=relaxed/simple; bh=buBYC2+7+HA6jTcwixgJau8zkk0OhnAYQhqg14JJL5o=; h=From:To:Cc:Subject:Date:Message-ID:In-Reply-To:References: MIME-Version; b=AXlKiJbP0kNstcEZhY+ls4ij39LMTyEEvNP9AZbGeOzQCFZ7gFIibktQ0f9f+CIRyHCBHpSEQZ2tF+FR4QcSqSQVDo3yngBEwxB2cPYSKkjajyCY+Kd/6vGlMPtPidKbG66Xid2CmKyj80qIs2O+B1gyi/bEN43UodNEu64MLcE= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dkim=pass (1024-bit key) header.d=linuxfoundation.org header.i=@linuxfoundation.org header.b=gWpbljip; arc=none smtp.client-ip=10.30.226.201 Authentication-Results: smtp.subspace.kernel.org; dkim=pass (1024-bit key) header.d=linuxfoundation.org header.i=@linuxfoundation.org header.b="gWpbljip" Received: by smtp.kernel.org (Postfix) with ESMTPSA id E998BC116D0; Thu, 15 Jan 2026 17:39:05 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=linuxfoundation.org; s=korg; t=1768498746; bh=buBYC2+7+HA6jTcwixgJau8zkk0OhnAYQhqg14JJL5o=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=gWpbljipVsMNTXXYOGQj+NuLJscZrBCe4gAQlaIKfEpBlhZaA9+SpgcVc1ZdXZI3F tPSWsTTYOqGiDKURy+kZFrX3aNmKzxHPzTwE4wQYA/MkQNyLNvEecCQvkF1oeClXlz 2m9gZgPP8gltj1gQwyac5KJd1Fm1yY2XTCqVDITs= From: Greg Kroah-Hartman To: stable@vger.kernel.org Cc: Greg Kroah-Hartman , patches@lists.linux.dev, kernel test robot , Wei Fang , Frank Li , Jakub Kicinski , Sasha Levin Subject: [PATCH 5.15 540/554] net: enetc: fix build warning when PAGE_SIZE is greater than 128K Date: Thu, 15 Jan 2026 17:50:06 +0100 Message-ID: <20260115164305.871631396@linuxfoundation.org> X-Mailer: git-send-email 2.52.0 In-Reply-To: <20260115164246.225995385@linuxfoundation.org> References: <20260115164246.225995385@linuxfoundation.org> User-Agent: quilt/0.69 X-stable: review X-Patchwork-Hint: ignore Precedence: bulk X-Mailing-List: stable@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Transfer-Encoding: 8bit 5.15-stable review patch. If anyone has any objections, please let me know. ------------------ From: Wei Fang [ Upstream commit 4b5bdabb5449b652122e43f507f73789041d4abe ] The max buffer size of ENETC RX BD is 0xFFFF bytes, so if the PAGE_SIZE is greater than 128K, ENETC_RXB_DMA_SIZE and ENETC_RXB_DMA_SIZE_XDP will be greater than 0xFFFF, thus causing a build warning. This will not cause any practical issues because ENETC is currently only used on the ARM64 platform, and the max PAGE_SIZE is 64K. So this patch is only for fixing the build warning that occurs when compiling ENETC drivers for other platforms. Reported-by: kernel test robot Closes: https://lore.kernel.org/oe-kbuild-all/202601050637.kHEKKOG7-lkp@intel.com/ Fixes: e59bc32df2e9 ("net: enetc: correct the value of ENETC_RXB_TRUESIZE") Signed-off-by: Wei Fang Reviewed-by: Frank Li Link: https://patch.msgid.link/20260107091204.1980222-1-wei.fang@nxp.com Signed-off-by: Jakub Kicinski Signed-off-by: Sasha Levin --- drivers/net/ethernet/freescale/enetc/enetc.h | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) diff --git a/drivers/net/ethernet/freescale/enetc/enetc.h b/drivers/net/ethernet/freescale/enetc/enetc.h index 40c8f0f026a5b..adcb53167d3f9 100644 --- a/drivers/net/ethernet/freescale/enetc/enetc.h +++ b/drivers/net/ethernet/freescale/enetc/enetc.h @@ -40,9 +40,9 @@ struct enetc_tx_swbd { #define ENETC_RXB_TRUESIZE (PAGE_SIZE >> 1) #define ENETC_RXB_PAD NET_SKB_PAD /* add extra space if needed */ #define ENETC_RXB_DMA_SIZE \ - (SKB_WITH_OVERHEAD(ENETC_RXB_TRUESIZE) - ENETC_RXB_PAD) + min(SKB_WITH_OVERHEAD(ENETC_RXB_TRUESIZE) - ENETC_RXB_PAD, 0xffff) #define ENETC_RXB_DMA_SIZE_XDP \ - (SKB_WITH_OVERHEAD(ENETC_RXB_TRUESIZE) - XDP_PACKET_HEADROOM) + min(SKB_WITH_OVERHEAD(ENETC_RXB_TRUESIZE) - XDP_PACKET_HEADROOM, 0xffff) struct enetc_rx_swbd { dma_addr_t dma; -- 2.51.0