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[98.183.112.25]) by smtp.gmail.com with ESMTPSA id 586e51a60fabf-29487772015sm600040fac.51.2024.10.31.09.49.30 (version=TLS1_3 cipher=TLS_AES_128_GCM_SHA256 bits=128/128); Thu, 31 Oct 2024 09:49:31 -0700 (PDT) Message-ID: <00b6f820-5a87-4e05-b079-281074be669c@baylibre.com> Date: Thu, 31 Oct 2024 11:49:29 -0500 Precedence: bulk X-Mailing-List: linux-trace-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 User-Agent: Mozilla Thunderbird Subject: Re: [PATCH] spi: axi-spi-engine: Emit trace events for spi transfers To: =?UTF-8?Q?Uwe_Kleine-K=C3=B6nig?= , Michael Hennerich , =?UTF-8?Q?Nuno_S=C3=A1?= , Mark Brown , Steven Rostedt , Masami Hiramatsu Cc: Mathieu Desnoyers , linux-trace-kernel@vger.kernel.org, linux-spi@vger.kernel.org References: <20241031111646.747692-2-u.kleine-koenig@baylibre.com> Content-Language: en-US From: David Lechner In-Reply-To: <20241031111646.747692-2-u.kleine-koenig@baylibre.com> Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit On 10/31/24 6:16 AM, Uwe Kleine-König wrote: > As this spi host controller driver implements the > .transfer_one_message() callback, it has to care about these traces > it-self. With the transfers being compiled it's difficult to determine > where handling of one transfer ends and the next begins, so just > generate the start events in batch before the hardware fifo is fed and > the end events when their completion triggered. > > Signed-off-by: Uwe Kleine-König > --- Reviewed-by: David Lechner