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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 /include/sound/hwdep.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 'include/sound/hwdep.h')
-rw-r--r--include/sound/hwdep.h67
1 files changed, 67 insertions, 0 deletions
diff --git a/include/sound/hwdep.h b/include/sound/hwdep.h
new file mode 100644
index 000000000..b0da63318
--- /dev/null
+++ b/include/sound/hwdep.h
@@ -0,0 +1,67 @@
+/* SPDX-License-Identifier: GPL-2.0-or-later */
+#ifndef __SOUND_HWDEP_H
+#define __SOUND_HWDEP_H
+
+/*
+ * Hardware dependent layer
+ * Copyright (c) by Jaroslav Kysela <perex@perex.cz>
+ */
+
+#include <sound/asound.h>
+#include <linux/poll.h>
+
+struct snd_hwdep;
+
+/* hwdep file ops; all ops can be NULL */
+struct snd_hwdep_ops {
+ long long (*llseek)(struct snd_hwdep *hw, struct file *file,
+ long long offset, int orig);
+ long (*read)(struct snd_hwdep *hw, char __user *buf,
+ long count, loff_t *offset);
+ long (*write)(struct snd_hwdep *hw, const char __user *buf,
+ long count, loff_t *offset);
+ int (*open)(struct snd_hwdep *hw, struct file * file);
+ int (*release)(struct snd_hwdep *hw, struct file * file);
+ __poll_t (*poll)(struct snd_hwdep *hw, struct file *file,
+ poll_table *wait);
+ int (*ioctl)(struct snd_hwdep *hw, struct file *file,
+ unsigned int cmd, unsigned long arg);
+ int (*ioctl_compat)(struct snd_hwdep *hw, struct file *file,
+ unsigned int cmd, unsigned long arg);
+ int (*mmap)(struct snd_hwdep *hw, struct file *file,
+ struct vm_area_struct *vma);
+ int (*dsp_status)(struct snd_hwdep *hw,
+ struct snd_hwdep_dsp_status *status);
+ int (*dsp_load)(struct snd_hwdep *hw,
+ struct snd_hwdep_dsp_image *image);
+};
+
+struct snd_hwdep {
+ struct snd_card *card;
+ struct list_head list;
+ int device;
+ char id[32];
+ char name[80];
+ int iface;
+
+#ifdef CONFIG_SND_OSSEMUL
+ int oss_type;
+ int ossreg;
+#endif
+
+ struct snd_hwdep_ops ops;
+ wait_queue_head_t open_wait;
+ void *private_data;
+ void (*private_free) (struct snd_hwdep *hwdep);
+ struct device *dev;
+
+ struct mutex open_mutex;
+ int used; /* reference counter */
+ unsigned int dsp_loaded; /* bit fields of loaded dsp indices */
+ unsigned int exclusive:1; /* exclusive access mode */
+};
+
+extern int snd_hwdep_new(struct snd_card *card, char *id, int device,
+ struct snd_hwdep **rhwdep);
+
+#endif /* __SOUND_HWDEP_H */