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 90DAF311C15; Mon, 13 Apr 2026 16:35:56 +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=1776098156; cv=none; b=Rt8cF3uEpprb2nf9e8DEEMPDEe0eMQtKHR67caIjupZ3Epag0yNy2fLkwUZVDb5Xow/NrTJLwFJxADjj3fE6zjQCydmLWqecia7f2WBVoV8TxDGwuDZinU898Ix2No8mshL1QqOzWyzXMjZPsgmF2Z4iPqU2KPBkE3FSoGosX6I= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1776098156; c=relaxed/simple; bh=6AMNPIg4d5OQmcYs+G6TaHaB4+W/pUfuB52DRfhtWME=; h=From:To:Cc:Subject:Date:Message-ID:In-Reply-To:References: MIME-Version; b=E2AEBDp+PcXfSwGFz/vJlTWjRxIo/wnX+mOIFABzL+5pdjP5NgOrgjZnqoafUe8+w1jTXmvPkTGFN7qIKrk2Yp/eWco0x8wZs4J2duYnVGMjOlNLCPaE3aX4+2hYv6Fp2o1Nqrh0cjIDAQnt0FcIrdAfboWu83MtIrgsZ6iPwSY= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dkim=pass (1024-bit key) header.d=linuxfoundation.org header.i=@linuxfoundation.org header.b=qODbZrfp; 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="qODbZrfp" Received: by smtp.kernel.org (Postfix) with ESMTPSA id B2BD0C2BCB3; Mon, 13 Apr 2026 16:35:55 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=linuxfoundation.org; s=korg; t=1776098156; bh=6AMNPIg4d5OQmcYs+G6TaHaB4+W/pUfuB52DRfhtWME=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=qODbZrfpbzPbmMGT7iG5mc+lLiQTwApcMzCzb6dXBPcLV5TSNy+R9xU38AMK0D3Ui g9u3ZdOi4kaySwQfSzi2Ix1zqyHKmYXBk0lxYvUoYc/Hiai0KgA45k9e27DCEGimdZ xRxkOKPWfqIsUakozJTMk94CP2Wpwknv9YEzklgc= From: Greg Kroah-Hartman To: stable@vger.kernel.org Cc: Greg Kroah-Hartman , patches@lists.linux.dev, Suraj Gupta , Sean Anderson , Paolo Abeni , Sasha Levin Subject: [PATCH 5.15 416/570] net: xilinx: axienet: Correct BD length masks to match AXIDMA IP spec Date: Mon, 13 Apr 2026 17:59:07 +0200 Message-ID: <20260413155846.055884880@linuxfoundation.org> X-Mailer: git-send-email 2.53.0 In-Reply-To: <20260413155830.386096114@linuxfoundation.org> References: <20260413155830.386096114@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: Suraj Gupta [ Upstream commit 393e0b4f178ec7fce1141dacc3304e3607a92ee9 ] The XAXIDMA_BD_CTRL_LENGTH_MASK and XAXIDMA_BD_STS_ACTUAL_LEN_MASK macros were defined as 0x007FFFFF (23 bits), but the AXI DMA IP product guide (PG021) specifies the buffer length field as bits 25:0 (26 bits). Update both masks to match the IP documentation. In practice this had no functional impact, since Ethernet frames are far smaller than 2^23 bytes and the extra bits were always zero, but the masks should still reflect the hardware specification. Fixes: 8a3b7a252dca ("drivers/net/ethernet/xilinx: added Xilinx AXI Ethernet driver") Signed-off-by: Suraj Gupta Reviewed-by: Sean Anderson Link: https://patch.msgid.link/20260327073238.134948-2-suraj.gupta2@amd.com Signed-off-by: Paolo Abeni Signed-off-by: Sasha Levin --- drivers/net/ethernet/xilinx/xilinx_axienet.h | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) diff --git a/drivers/net/ethernet/xilinx/xilinx_axienet.h b/drivers/net/ethernet/xilinx/xilinx_axienet.h index 54087ce1c07cd..3b04867a1fcad 100644 --- a/drivers/net/ethernet/xilinx/xilinx_axienet.h +++ b/drivers/net/ethernet/xilinx/xilinx_axienet.h @@ -103,7 +103,7 @@ #define XAXIDMA_BD_HAS_DRE_MASK 0xF00 /* Whether has DRE mask */ #define XAXIDMA_BD_WORDLEN_MASK 0xFF /* Whether has DRE mask */ -#define XAXIDMA_BD_CTRL_LENGTH_MASK 0x007FFFFF /* Requested len */ +#define XAXIDMA_BD_CTRL_LENGTH_MASK GENMASK(25, 0) /* Requested len */ #define XAXIDMA_BD_CTRL_TXSOF_MASK 0x08000000 /* First tx packet */ #define XAXIDMA_BD_CTRL_TXEOF_MASK 0x04000000 /* Last tx packet */ #define XAXIDMA_BD_CTRL_ALL_MASK 0x0C000000 /* All control bits */ @@ -129,7 +129,7 @@ #define XAXIDMA_BD_CTRL_TXEOF_MASK 0x04000000 /* Last tx packet */ #define XAXIDMA_BD_CTRL_ALL_MASK 0x0C000000 /* All control bits */ -#define XAXIDMA_BD_STS_ACTUAL_LEN_MASK 0x007FFFFF /* Actual len */ +#define XAXIDMA_BD_STS_ACTUAL_LEN_MASK GENMASK(25, 0) /* Actual len */ #define XAXIDMA_BD_STS_COMPLETE_MASK 0x80000000 /* Completed */ #define XAXIDMA_BD_STS_DEC_ERR_MASK 0x40000000 /* Decode error */ #define XAXIDMA_BD_STS_SLV_ERR_MASK 0x20000000 /* Slave error */ -- 2.53.0