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 F1FDE15C82 for ; Mon, 5 Dec 2022 19:18:41 +0000 (UTC) Received: by smtp.kernel.org (Postfix) with ESMTPSA id 73621C433D6; Mon, 5 Dec 2022 19:18:41 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=linuxfoundation.org; s=korg; t=1670267921; bh=ZTQG2cMz9eYCYbxj9LaO9qdwyVntHj5UAA0+LULgqrE=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=qFTRf2c/DyQvS8Jw9gn9KAKM9Bzbeqf5cKLh8hEMGTpLhEJpeFzrloxdZV2N1wJ+W 2grm5pBbzxnYKcVGKvH0ueJJwmQwmyiQOfybtSs2nWAtIkdLl34TVMcVOglo8tHchS fSJw92qXu+s+PVZ6tfigmJn9zcvB90g68hhVj++w= From: Greg Kroah-Hartman To: stable@vger.kernel.org Cc: Greg Kroah-Hartman , patches@lists.linux.dev, Moshe Shemesh , Feras Daoud , Saeed Mahameed , Sasha Levin Subject: [PATCH 4.19 022/105] net/mlx5: Fix FW tracer timestamp calculation Date: Mon, 5 Dec 2022 20:08:54 +0100 Message-Id: <20221205190803.903039631@linuxfoundation.org> X-Mailer: git-send-email 2.38.1 In-Reply-To: <20221205190803.124472741@linuxfoundation.org> References: <20221205190803.124472741@linuxfoundation.org> User-Agent: quilt/0.67 Precedence: bulk X-Mailing-List: patches@lists.linux.dev List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit From: Moshe Shemesh [ Upstream commit 61db3d7b99a367416e489ccf764cc5f9b00d62a1 ] Fix a bug in calculation of FW tracer timestamp. Decreasing one in the calculation should effect only bits 52_7 and not effect bits 6_0 of the timestamp, otherwise bits 6_0 are always set in this calculation. Fixes: 70dd6fdb8987 ("net/mlx5: FW tracer, parse traces and kernel tracing support") Signed-off-by: Moshe Shemesh Reviewed-by: Feras Daoud Signed-off-by: Saeed Mahameed Signed-off-by: Sasha Levin --- drivers/net/ethernet/mellanox/mlx5/core/diag/fw_tracer.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/net/ethernet/mellanox/mlx5/core/diag/fw_tracer.c b/drivers/net/ethernet/mellanox/mlx5/core/diag/fw_tracer.c index a22e932a00b0..ef9f932f0226 100644 --- a/drivers/net/ethernet/mellanox/mlx5/core/diag/fw_tracer.c +++ b/drivers/net/ethernet/mellanox/mlx5/core/diag/fw_tracer.c @@ -600,7 +600,7 @@ static void mlx5_tracer_handle_timestamp_trace(struct mlx5_fw_tracer *tracer, trace_timestamp = (timestamp_event.timestamp & MASK_52_7) | (str_frmt->timestamp & MASK_6_0); else - trace_timestamp = ((timestamp_event.timestamp & MASK_52_7) - 1) | + trace_timestamp = ((timestamp_event.timestamp - 1) & MASK_52_7) | (str_frmt->timestamp & MASK_6_0); mlx5_tracer_print_trace(str_frmt, dev, trace_timestamp); -- 2.35.1