linux-kernel - [PATCH 2/9] iio: adc: ad_sigma_delta: use u8 instead of uint8

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives
Hash Suite: Windows password security audit tool. GUI, reports in PDF.
[<prev] [next>] [<thread-prev] [thread-next>] [day] [month] [year] [list]
Message-Id: <20250620-iio-adc-ad7173-add-spi-offload-support-v1-2-0766f6297430@baylibre.com>
Date: Fri, 20 Jun 2025 17:20:08 -0500
From: David Lechner <dlechner@...libre.com>
To: Michael Hennerich <Michael.Hennerich@...log.com>, 
 Jonathan Cameron <jic23@...nel.org>, 
 Nuno Sá <nuno.sa@...log.com>, 
 Andy Shevchenko <andy@...nel.org>, Rob Herring <robh@...nel.org>, 
 Krzysztof Kozlowski <krzk+dt@...nel.org>, 
 Conor Dooley <conor+dt@...nel.org>, Mark Brown <broonie@...nel.org>
Cc: linux-iio@...r.kernel.org, linux-kernel@...r.kernel.org, 
 devicetree@...r.kernel.org, linux-spi@...r.kernel.org, 
 David Lechner <dlechner@...libre.com>
Subject: [PATCH 2/9] iio: adc: ad_sigma_delta: use u8 instead of uint8_t

Replace uint8_t with u8 in the ad_sigma_delta driver.

Technically, uint8_t comes from the C standard library, while u8 is a
Linux kernel type. Since we don't use the C standard library in the
kernel, we should use the kernel types instead.

Signed-off-by: David Lechner <dlechner@...libre.com>
---
 drivers/iio/adc/ad_sigma_delta.c       | 15 ++++++++-------
 include/linux/iio/adc/ad_sigma_delta.h | 10 +++++-----
 2 files changed, 13 insertions(+), 12 deletions(-)

diff --git a/drivers/iio/adc/ad_sigma_delta.c b/drivers/iio/adc/ad_sigma_delta.c
index 6cd3645eaaf38a23d5b6479ac598b6d276cfd81a..1657f64f1c0465b249adcc8a70dda8faf4a90565 100644
--- a/drivers/iio/adc/ad_sigma_delta.c
+++ b/drivers/iio/adc/ad_sigma_delta.c
@@ -14,6 +14,7 @@
 #include <linux/module.h>
 #include <linux/slab.h>
 #include <linux/spi/spi.h>
+#include <linux/types.h>
 #include <linux/unaligned.h>
 
 #include <linux/iio/adc/ad_sigma_delta.h>
@@ -38,7 +39,7 @@
  * @sigma_delta: The sigma delta device
  * @comm: New value for the communications register
  */
-void ad_sd_set_comm(struct ad_sigma_delta *sigma_delta, uint8_t comm)
+void ad_sd_set_comm(struct ad_sigma_delta *sigma_delta, u8 comm)
 {
 	/* Some variants use the lower two bits of the communications register
 	 * to select the channel */
@@ -59,7 +60,7 @@ EXPORT_SYMBOL_NS_GPL(ad_sd_set_comm, "IIO_AD_SIGMA_DELTA");
 int ad_sd_write_reg(struct ad_sigma_delta *sigma_delta, unsigned int reg,
 	unsigned int size, unsigned int val)
 {
-	uint8_t *data = sigma_delta->tx_buf;
+	u8 *data = sigma_delta->tx_buf;
 	struct spi_transfer t = {
 		.tx_buf		= data,
 		.len		= size + 1,
@@ -99,9 +100,9 @@ int ad_sd_write_reg(struct ad_sigma_delta *sigma_delta, unsigned int reg,
 EXPORT_SYMBOL_NS_GPL(ad_sd_write_reg, "IIO_AD_SIGMA_DELTA");
 
 static int ad_sd_read_reg_raw(struct ad_sigma_delta *sigma_delta,
-	unsigned int reg, unsigned int size, uint8_t *val)
+			      unsigned int reg, unsigned int size, u8 *val)
 {
-	uint8_t *data = sigma_delta->tx_buf;
+	u8 *data = sigma_delta->tx_buf;
 	int ret;
 	struct spi_transfer t[] = {
 		{
@@ -185,7 +186,7 @@ EXPORT_SYMBOL_NS_GPL(ad_sd_read_reg, "IIO_AD_SIGMA_DELTA");
 int ad_sd_reset(struct ad_sigma_delta *sigma_delta)
 {
 	unsigned int reset_length = sigma_delta->info->num_resetclks;
-	uint8_t *buf;
+	u8 *buf;
 	unsigned int size;
 	int ret;
 
@@ -454,7 +455,7 @@ static int ad_sd_buffer_postenable(struct iio_dev *indio_dev)
 	struct ad_sigma_delta *sigma_delta = iio_device_get_drvdata(indio_dev);
 	unsigned int i, slot, samples_buf_size;
 	unsigned int channel;
-	uint8_t *samples_buf;
+	u8 *samples_buf;
 	int ret;
 
 	if (sigma_delta->num_slots == 1) {
@@ -543,7 +544,7 @@ static irqreturn_t ad_sd_trigger_handler(int irq, void *p)
 	struct iio_poll_func *pf = p;
 	struct iio_dev *indio_dev = pf->indio_dev;
 	struct ad_sigma_delta *sigma_delta = iio_device_get_drvdata(indio_dev);
-	uint8_t *data = sigma_delta->rx_buf;
+	u8 *data = sigma_delta->rx_buf;
 	unsigned int transfer_size;
 	unsigned int sample_size;
 	unsigned int sample_pos;
diff --git a/include/linux/iio/adc/ad_sigma_delta.h b/include/linux/iio/adc/ad_sigma_delta.h
index f242b285081b8d304ca25ae95337425e5842269a..5056677c9941afadc2383febbcafeb02e23a4f44 100644
--- a/include/linux/iio/adc/ad_sigma_delta.h
+++ b/include/linux/iio/adc/ad_sigma_delta.h
@@ -94,7 +94,7 @@ struct ad_sigma_delta {
 	bool			bus_locked;
 	bool			keep_cs_asserted;
 
-	uint8_t			comm;
+	u8			comm;
 
 	const struct ad_sigma_delta_info *info;
 	unsigned int		active_slots;
@@ -105,7 +105,7 @@ struct ad_sigma_delta {
 	bool			status_appended;
 	/* map slots to channels in order to know what to expect from devices */
 	unsigned int		*slots;
-	uint8_t			*samples_buf;
+	u8			*samples_buf;
 
 	/*
 	 * DMA (thus cache coherency maintenance) requires the
@@ -114,8 +114,8 @@ struct ad_sigma_delta {
 	 * 'rx_buf' is up to 32 bits per sample + 64 bit timestamp,
 	 * rounded to 16 bytes to take into account padding.
 	 */
-	uint8_t				tx_buf[4] __aligned(IIO_DMA_MINALIGN);
-	uint8_t				rx_buf[16] __aligned(8);
+	u8				tx_buf[4] __aligned(IIO_DMA_MINALIGN);
+	u8				rx_buf[16] __aligned(8);
 };
 
 static inline int ad_sigma_delta_set_channel(struct ad_sigma_delta *sd,
@@ -177,7 +177,7 @@ static inline int ad_sigma_delta_postprocess_sample(struct ad_sigma_delta *sd,
 	return 0;
 }
 
-void ad_sd_set_comm(struct ad_sigma_delta *sigma_delta, uint8_t comm);
+void ad_sd_set_comm(struct ad_sigma_delta *sigma_delta, u8 comm);
 int ad_sd_write_reg(struct ad_sigma_delta *sigma_delta, unsigned int reg,
 	unsigned int size, unsigned int val);
 int ad_sd_read_reg(struct ad_sigma_delta *sigma_delta, unsigned int reg,

-- 
2.43.0