From 3a2c4d55e32ad65efebdb6de44eef3bfa08bb49d Mon Sep 17 00:00:00 2001 From: Kees Cook Date: Wed, 2 Sep 2026 15:31:14 -0700 Subject: treewide: refresh kmalloc_obj() conversions This is another run of the Coccinelle script for converting kmalloc() family of allocations to kmalloc_obj() via the existing rules in scripts/coccinelle/api/kmalloc_objs.cocci This catches both the set of kmalloc() uses added since the first kmalloc_obj() conversions in v7.0 and adds a large group missed in the first pass due to Coccinelle not interacting well with the cleanup.h scoped_...() family of macros[1]. I worked around this with spatch's "--macro-file" argument to a file with all the scoped_...() macros mapped to Coccinelle's YACFE_ITERATOR[2] as that was the closest viable control flow indicator I could find. Build tested allmodconfig on x86, arm64, arm, loongarch, mips, powerpc, riscv, and s390 with no new warnings. Link: https://lore.kernel.org/lkml/202609021314.8A9C0B8@keescook/ [1] Link: https://github.com/coccinelle/coccinelle/blob/master/standard.h [2] Signed-off-by: Kees Cook --- drivers/media/dvb-frontends/drxk.h | 75 ++++++++++++++++++++++++++++++++++++++ 1 file changed, 75 insertions(+) create mode 100644 drivers/media/dvb-frontends/drxk.h (limited to 'drivers/media/dvb-frontends/drxk.h') diff --git a/drivers/media/dvb-frontends/drxk.h b/drivers/media/dvb-frontends/drxk.h new file mode 100644 index 000000000..69fdca00f --- /dev/null +++ b/drivers/media/dvb-frontends/drxk.h @@ -0,0 +1,75 @@ +/* SPDX-License-Identifier: GPL-2.0 */ +#ifndef _DRXK_H_ +#define _DRXK_H_ + +#include +#include + +/** + * struct drxk_config - Configure the initial parameters for DRX-K + * + * @adr: I2C address of the DRX-K + * @parallel_ts: True means that the device uses parallel TS, + * Serial otherwise. + * @dynamic_clk: True means that the clock will be dynamically + * adjusted. Static clock otherwise. + * @enable_merr_cfg: Enable SIO_PDR_PERR_CFG/SIO_PDR_MVAL_CFG. + * @single_master: Device is on the single master mode + * @no_i2c_bridge: Don't switch the I2C bridge to talk with tuner + * @antenna_gpio: GPIO bit used to control the antenna + * @antenna_dvbt: GPIO bit for changing antenna to DVB-C. A value of 1 + * means that 1=DVBC, 0 = DVBT. Zero means the opposite. + * @mpeg_out_clk_strength: DRXK Mpeg output clock drive strength. + * @chunk_size: maximum size for I2C messages + * @microcode_name: Name of the firmware file with the microcode + * @qam_demod_parameter_count: The number of parameters used for the command + * to set the demodulator parameters. All + * firmwares are using the 2-parameter command. + * An exception is the ``drxk_a3.mc`` firmware, + * which uses the 4-parameter command. + * A value of 0 (default) or lower indicates that + * the correct number of parameters will be + * automatically detected. + * + * On the ``*_gpio`` vars, bit 0 is UIO-1, bit 1 is UIO-2 and bit 2 is + * UIO-3. + */ +struct drxk_config { + u8 adr; + bool single_master; + bool no_i2c_bridge; + bool parallel_ts; + bool dynamic_clk; + bool enable_merr_cfg; + + bool antenna_dvbt; + u16 antenna_gpio; + + u8 mpeg_out_clk_strength; + int chunk_size; + + const char *microcode_name; + int qam_demod_parameter_count; +}; + +#if IS_REACHABLE(CONFIG_DVB_DRXK) +/** + * drxk_attach - Attach a drxk demod + * + * @config: pointer to &struct drxk_config with demod configuration. + * @i2c: i2c adapter to use. + * + * return: FE pointer on success, NULL on failure. + */ +extern struct dvb_frontend *drxk_attach(const struct drxk_config *config, + struct i2c_adapter *i2c); +#else +static inline struct dvb_frontend *drxk_attach(const struct drxk_config *config, + struct i2c_adapter *i2c) +{ + printk(KERN_WARNING "%s: driver disabled by Kconfig\n", __func__); + return NULL; +} +#endif + +#endif -- cgit v1.3.1