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 996D11A23AD; Fri, 13 Jun 2025 14:43:57 +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=1749825837; cv=none; b=D2L/CdDJouHNrMUHwiqDSa/CJgeh+ouoOSHO762A2BRYbwZOMd0cgr0lWfWVInJimwXFcD6r8nZGU213DGIWb2idWK2uIftz33DY7YPeGJfpTQtdsYGuzOxhGJPOVAnUPnDgdzvhpW0bfKuEmnoC1/UrSikxSpW4S6hBLImpsIg= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1749825837; c=relaxed/simple; bh=7gKLG5yJ6N0Gh2lnOGfwYmZeMz2q7/LyOeRBdAByCsI=; h=Date:From:To:Cc:Subject:Message-ID:In-Reply-To:References: MIME-Version:Content-Type; b=NjV4DL2zcgWlIfQVYDtU/mqT7bJOZFntVCB6BNudO9lktYYV+p6VQuBqVuDXfn74l3+rEI95rWnWO2KbyK2Q6yVN8rvoTr8XC5iT7LWMPd8Al5z4qDQMuwFyUoSoLUNmYRTJ740VYwIj+cdg5KIcfmwIXeuDr9i1cJfSxIgSXM4= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b=hlowxnT0; arc=none smtp.client-ip=10.30.226.201 Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b="hlowxnT0" Received: by smtp.kernel.org (Postfix) with ESMTPSA id C0CBAC4CEE3; Fri, 13 Jun 2025 14:43:56 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1749825837; bh=7gKLG5yJ6N0Gh2lnOGfwYmZeMz2q7/LyOeRBdAByCsI=; h=Date:From:To:Cc:Subject:In-Reply-To:References:From; b=hlowxnT0Gd8gvS9T2iQZtZZ++871uQLPvv2YY7SwYOlNJsNUqhnQuyd9KhZekSoDR J0qrkT5nfUKmMGcr6G3++LhmL3EjSQD2QFCjQ9yBHLqkJHVrk274eJ9ybzBQCYnfQI hRVZ+ClSO2QU+FGgQg7MwRInMJW5GfG9Jlfbm7IVqkoPZG1c9osXvq/7EPK5u5iDyF YWvQUy43M51wxCm0IsngWVUQS+4x0CdCwrTy3LjrHYRfL2OjziDa4xpbRTCWoMQDu8 THZrZD9nLcYonRH3r9y5TYNLOTHD2vTsG/WyzKHjJULYU+UEtU7zblGAYmh0dXULQg CFP9C18MGJkcQ== Date: Fri, 13 Jun 2025 07:43:56 -0700 From: Jakub Kicinski To: Thomas Fourier Cc: Chris Snook , Andrew Lunn , "David S. Miller" , Eric Dumazet , Paolo Abeni , Thomas Gleixner , Ingo Molnar , netdev@vger.kernel.org, linux-kernel@vger.kernel.org Subject: Re: [PATCH v2] (drivers/ethernet/atheros/atl1) test DMA mapping for error code Message-ID: <20250613074356.210332b1@kernel.org> In-Reply-To: <20250613095516.116486-1-fourier.thomas@gmail.com> References: <20250612183234.51a959e9@kernel.org> <20250613095516.116486-1-fourier.thomas@gmail.com> Precedence: bulk X-Mailing-List: netdev@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Type: text/plain; charset=US-ASCII Content-Transfer-Encoding: 7bit On Fri, 13 Jun 2025 11:54:08 +0200 Thomas Fourier wrote: > According to Shuah Khan[1], all `dma_map()` functions should be tested > before using the pointer. This patch checks for errors after all `dma_map()` > calls. Please read: https://www.kernel.org/doc/html/next/process/maintainer-netdev.html