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authorKees Cook <kees+treewide@kernel.org>2026-09-02 15:31:14 -0700
committerKees Cook <kees@kernel.org>2026-09-04 21:37:00 -0700
commit3a2c4d55e32ad65efebdb6de44eef3bfa08bb49d (patch)
treec65086f9bdcd48c6360fb7cb4598bca084da1f32 /drivers/media/dvb-frontends/drxk.h
downloadlinux-stable-3a2c4d55e32ad65efebdb6de44eef3bfa08bb49d.tar.gz
linux-stable-3a2c4d55e32ad65efebdb6de44eef3bfa08bb49d.zip
treewide: refresh kmalloc_obj() conversionsgrafted
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 <kees+treewide@kernel.org>
Diffstat (limited to 'drivers/media/dvb-frontends/drxk.h')
-rw-r--r--drivers/media/dvb-frontends/drxk.h75
1 files changed, 75 insertions, 0 deletions
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 <linux/types.h>
+#include <linux/i2c.h>
+
+/**
+ * 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