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([2600:8803:e7e4:500:14a9:db6c:e65a:4287]) by smtp.gmail.com with ESMTPSA id 006d021491bc7-67bc8efa80esm7383958eaf.2.2026.03.14.13.30.59 (version=TLS1_3 cipher=TLS_AES_128_GCM_SHA256 bits=128/128); Sat, 14 Mar 2026 13:31:01 -0700 (PDT) Message-ID: <8bb22b8b-7229-4942-80f1-6eccf9f26a8c@baylibre.com> Date: Sat, 14 Mar 2026 15:30:59 -0500 Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 User-Agent: Mozilla Thunderbird Subject: Re: [PATCH v3] iio: st_sensors: drop temporary kmalloc buffer and reuse buffer_data To: Sanjay Chitroda , jic23@kernel.org, nuno.sa@analog.com, andy@kernel.org Cc: kees@kernel.org, linux-iio@vger.kernel.org, linux-kernel@vger.kernel.org References: <20260312063424.3846945-1-sanjayembedded@gmail.com> Content-Language: en-US From: David Lechner In-Reply-To: <20260312063424.3846945-1-sanjayembedded@gmail.com> Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 7bit On 3/12/26 1:34 AM, Sanjay Chitroda wrote: > From: Sanjay Chitroda > > Replace the per-call kmalloc() scratch buffer with the statically allocated "statically allocated" is a bit misleading. It is just an existing buffer in the private driver data (dynamically allocated during probe). > buffer_data[] field present in struct st_sensor_data. The existing buffer > is DMA-aligned and sufficiently sized for all channel widths, so using it > avoids unnecessary dynamic memory allocation on each read. > > This simplifies the code, removes redundant allocation and cleanup. > No functional change intended. > > Signed-off-by: Sanjay Chitroda > --- Reviewed-by: David Lechner