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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 /sound/soc/codecs/rl6347a.c
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 'sound/soc/codecs/rl6347a.c')
-rw-r--r--sound/soc/codecs/rl6347a.c108
1 files changed, 108 insertions, 0 deletions
diff --git a/sound/soc/codecs/rl6347a.c b/sound/soc/codecs/rl6347a.c
new file mode 100644
index 000000000..fa8ac3454
--- /dev/null
+++ b/sound/soc/codecs/rl6347a.c
@@ -0,0 +1,108 @@
+// SPDX-License-Identifier: GPL-2.0-only
+/*
+ * rl6347a.c - RL6347A class device shared support
+ *
+ * Copyright 2015 Realtek Semiconductor Corp.
+ *
+ * Author: Oder Chiou <oder_chiou@realtek.com>
+ */
+
+#include <linux/module.h>
+#include <linux/i2c.h>
+#include <linux/regmap.h>
+
+#include "rl6347a.h"
+
+int rl6347a_hw_write(void *context, unsigned int reg, unsigned int value)
+{
+ struct i2c_client *client = context;
+ struct rl6347a_priv *rl6347a = i2c_get_clientdata(client);
+ u8 data[4];
+ int ret, i;
+
+ /* handle index registers */
+ if (reg <= 0xff) {
+ rl6347a_hw_write(client, RL6347A_COEF_INDEX, reg);
+ for (i = 0; i < rl6347a->index_cache_size; i++) {
+ if (reg == rl6347a->index_cache[i].reg) {
+ rl6347a->index_cache[i].def = value;
+ break;
+ }
+
+ }
+ reg = RL6347A_PROC_COEF;
+ }
+
+ data[0] = (reg >> 24) & 0xff;
+ data[1] = (reg >> 16) & 0xff;
+ /*
+ * 4 bit VID: reg should be 0
+ * 12 bit VID: value should be 0
+ * So we use an OR operator to handle it rather than use if condition.
+ */
+ data[2] = ((reg >> 8) & 0xff) | ((value >> 8) & 0xff);
+ data[3] = value & 0xff;
+
+ ret = i2c_master_send(client, data, 4);
+
+ if (ret == 4)
+ return 0;
+ else
+ dev_err(&client->dev, "I2C error %d\n", ret);
+ if (ret < 0)
+ return ret;
+ else
+ return -EIO;
+}
+EXPORT_SYMBOL_GPL(rl6347a_hw_write);
+
+int rl6347a_hw_read(void *context, unsigned int reg, unsigned int *value)
+{
+ struct i2c_client *client = context;
+ struct i2c_msg xfer[2];
+ int ret;
+ __be32 be_reg, buf = 0x0;
+ unsigned int index, vid;
+
+ /* handle index registers */
+ if (reg <= 0xff) {
+ rl6347a_hw_write(client, RL6347A_COEF_INDEX, reg);
+ reg = RL6347A_PROC_COEF;
+ }
+
+ reg = reg | 0x80000;
+ vid = (reg >> 8) & 0xfff;
+
+ if (AC_VERB_GET_AMP_GAIN_MUTE == (vid & 0xf00)) {
+ index = (reg >> 8) & 0xf;
+ reg = (reg & ~0xf0f) | index;
+ }
+ be_reg = cpu_to_be32(reg);
+
+ /* Write register */
+ xfer[0].addr = client->addr;
+ xfer[0].flags = 0;
+ xfer[0].len = 4;
+ xfer[0].buf = (u8 *)&be_reg;
+
+ /* Read data */
+ xfer[1].addr = client->addr;
+ xfer[1].flags = I2C_M_RD;
+ xfer[1].len = 4;
+ xfer[1].buf = (u8 *)&buf;
+
+ ret = i2c_transfer(client->adapter, xfer, 2);
+ if (ret < 0)
+ return ret;
+ else if (ret != 2)
+ return -EIO;
+
+ *value = be32_to_cpu(buf);
+
+ return 0;
+}
+EXPORT_SYMBOL_GPL(rl6347a_hw_read);
+
+MODULE_DESCRIPTION("RL6347A class device shared support");
+MODULE_AUTHOR("Oder Chiou <oder_chiou@realtek.com>");
+MODULE_LICENSE("GPL v2");