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Wed, 11 Jun 2025 15:42:14 -0700 (PDT) Received: from [127.0.1.1] ([2600:8803:e7e4:1d00:4753:719f:673f:547c]) by smtp.gmail.com with ESMTPSA id 5614622812f47-40a682fbf05sm24684b6e.32.2025.06.11.15.42.12 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Wed, 11 Jun 2025 15:42:12 -0700 (PDT) From: David Lechner Subject: [PATCH 00/28] iio: zero init stack with { } instead of memset() Date: Wed, 11 Jun 2025 17:38:52 -0500 Message-Id: <20250611-iio-zero-init-stack-with-instead-of-memset-v1-0-ebb2d0a24302@baylibre.com> Precedence: bulk X-Mailing-List: linux-iio@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: 7bit X-B4-Tracking: v=1; b=H4sIAHwFSmgC/x3NQQrCMBBG4auUWTuQCVXBq4iLmEztjzSRTFBp6 d0NLr/NexuZVqjRZdio6huGkjvkMFCcQ34oI3WTd/7oTiIMFF61FkZGY2shPvmDNndb05C4TLz oYtrYJfFplHDWeKcefFWd8P3Prrd9/wGWqNUmfAAAAA== X-Change-ID: 20250611-iio-zero-init-stack-with-instead-of-memset-0d12d41a7ecb To: Michael Hennerich , Lars-Peter Clausen , Jonathan Cameron , =?utf-8?q?Nuno_S=C3=A1?= , Andy Shevchenko , Matthias Brugger , AngeloGioacchino Del Regno , Heiko Stuebner , Maxime Coquelin , Alexandre Torgue , Francesco Dolcini , =?utf-8?q?Jo=C3=A3o_Paulo_Gon=C3=A7alves?= , =?utf-8?q?Leonard_G=C3=B6hrs?= , kernel@pengutronix.de, Oleksij Rempel , Roan van Dijk , Tomasz Duszynski , Jacopo Mondi , Jean-Baptiste Maneyrol , Mudit Sharma , Javier Carrasco , =?utf-8?q?Ond=C5=99ej_Jirman?= , Andreas Klinger , Petre Rodan Cc: linux-iio@vger.kernel.org, linux-kernel@vger.kernel.org, linux-arm-kernel@lists.infradead.org, linux-mediatek@lists.infradead.org, linux-rockchip@lists.infradead.org, linux-stm32@st-md-mailman.stormreply.com, David Lechner X-Mailer: b4 0.14.2 X-Developer-Signature: v=1; a=openpgp-sha256; l=4170; i=dlechner@baylibre.com; h=from:subject:message-id; bh=yr3KMlpdAIDpFQpkD3xC/enXTLilJ1AAF5YBAl5/CHI=; b=owEBbQGS/pANAwAKAcLMIAH/AY/AAcsmYgBoSgWAfjXY88M5ZYDZ+7DX9ossNW945JAucW1/v jGUtSZ5M1eJATMEAAEKAB0WIQTsGNmeYg6D1pzYaJjCzCAB/wGPwAUCaEoFgAAKCRDCzCAB/wGP wPuQB/9qvN9qaCT672/2gBbYyejlFF3k1/j6Gn/mB3Q9wXva2BfxWsvzY/aFxXDjRUixvEIYtHr Aa2OgjvXXp8xeKaF9+2tuO3eZMkPIlIsGMSh8RlslM5ziujYyK74q8EbozYwpwlW1iEN+nhz2d2 veKGy321c5RC4/6ArZl7vHAkwa+0YbhQgUQMiL/p0G7uDdnZaPAOsMjP3qOZAFm5g5e6xP3QeuZ NXEr3Fmbf7SKpE+P8cDfUrlyI0ktmNb2LmQCFLyFLxJcwfPz1+dMjbqnyCkB+OsBvSwWgo6eIed GyVNvi0jVIHbMRsHldgnXbcgyInHxugOhj5ZAno4ZKQqOxLc X-Developer-Key: i=dlechner@baylibre.com; a=openpgp; fpr=8A73D82A6A1F509907F373881F8AF88C82F77C03 Jonathan mentioned recently that he would like to get away from using memset() to zero-initialize stack memory in the IIO subsystem. And we have it on good authority that initializing a struct or array with = { } is the preferred way to do this in the kernel [1]. So here is a series to take care of that. [1]: https://lore.kernel.org/linux-iio/202505090942.48EBF01B@keescook/ --- David Lechner (28): iio: accel: adxl372: use = { } instead of memset() iio: accel: msa311: use = { } instead of memset() iio: adc: dln2-adc: use = { } instead of memset() iio: adc: mt6360-adc: use = { } instead of memset() iio: adc: rockchip_saradc: use = { } instead of memset() iio: adc: rtq6056: use = { } instead of memset() iio: adc: stm32-adc: use = { } instead of memset() iio: adc: ti-ads1015: use = { } instead of memset() iio: adc: ti-ads1119: use = { } instead of memset() iio: adc: ti-lmp92064: use = { } instead of memset() iio: adc: ti-tsc2046: use = { } instead of memset() iio: chemical: scd4x: use = { } instead of memset() iio: chemical: scd30: use = { } instead of memset() iio: chemical: sunrise_co2: use = { } instead of memset() iio: dac: ad3552r: use = { } instead of memset() iio: imu: inv_icm42600: use = { } instead of memset() iio: imu: inv_mpu6050: use = { } instead of memset() iio: light: bh1745: use = { } instead of memset() iio: light: ltr501: use = { } instead of memset() iio: light: opt4060: use = { } instead of memset() iio: light: veml6030: use = { } instead of memset() iio: magnetometer: af8133j: use = { } instead of memset() iio: pressure: bmp280: use = { } instead of memset() iio: pressure: mpl3115: use = { } instead of memset() iio: pressure: mprls0025pa: use = { } instead of memset() iio: pressure: zpa2326: use = { } instead of memset() iio: proximity: irsd200: use = { } instead of memset() iio: temperature: tmp006: use = { } instead of memset() drivers/iio/accel/adxl372.c | 3 +-- drivers/iio/accel/msa311.c | 4 +--- drivers/iio/adc/dln2-adc.c | 4 +--- drivers/iio/adc/mt6360-adc.c | 3 +-- drivers/iio/adc/rockchip_saradc.c | 4 +--- drivers/iio/adc/rtq6056.c | 4 +--- drivers/iio/adc/stm32-adc.c | 3 +-- drivers/iio/adc/ti-ads1015.c | 4 +--- drivers/iio/adc/ti-ads1119.c | 4 +--- drivers/iio/adc/ti-lmp92064.c | 4 +--- drivers/iio/adc/ti-tsc2046.c | 3 +-- drivers/iio/chemical/scd30_core.c | 3 +-- drivers/iio/chemical/scd4x.c | 3 +-- drivers/iio/chemical/sunrise_co2.c | 6 ++---- drivers/iio/dac/ad3552r.c | 3 +-- drivers/iio/imu/inv_icm42600/inv_icm42600_accel.c | 5 ++--- drivers/iio/imu/inv_icm42600/inv_icm42600_gyro.c | 5 ++--- drivers/iio/imu/inv_mpu6050/inv_mpu_acpi.c | 4 +--- drivers/iio/imu/inv_mpu6050/inv_mpu_ring.c | 6 ++---- drivers/iio/light/bh1745.c | 4 +--- drivers/iio/light/ltr501.c | 4 +--- drivers/iio/light/opt4060.c | 4 +--- drivers/iio/light/veml6030.c | 4 +--- drivers/iio/magnetometer/af8133j.c | 4 +--- drivers/iio/pressure/bmp280-core.c | 5 +---- drivers/iio/pressure/mpl3115.c | 3 +-- drivers/iio/pressure/mprls0025pa_i2c.c | 5 +---- drivers/iio/pressure/zpa2326.c | 4 +--- drivers/iio/proximity/irsd200.c | 3 +-- drivers/iio/temperature/tmp006.c | 4 +--- 30 files changed, 34 insertions(+), 85 deletions(-) --- base-commit: 4c6073fec2fee4827fa0dd8a4ab4e6f7bbc05ee6 change-id: 20250611-iio-zero-init-stack-with-instead-of-memset-0d12d41a7ecb Best regards, -- David Lechner