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 --- sound/firewire/iso-resources.h | 39 +++++++++++++++++++++++++++++++++++++++ 1 file changed, 39 insertions(+) create mode 100644 sound/firewire/iso-resources.h (limited to 'sound/firewire/iso-resources.h') diff --git a/sound/firewire/iso-resources.h b/sound/firewire/iso-resources.h new file mode 100644 index 000000000..34f85e9e8 --- /dev/null +++ b/sound/firewire/iso-resources.h @@ -0,0 +1,39 @@ +/* SPDX-License-Identifier: GPL-2.0 */ +#ifndef SOUND_FIREWIRE_ISO_RESOURCES_H_INCLUDED +#define SOUND_FIREWIRE_ISO_RESOURCES_H_INCLUDED + +#include +#include + +struct fw_unit; + +/** + * struct fw_iso_resources - manages channel/bandwidth allocation + * @channels_mask: if the device does not support all channel numbers, set this + * bit mask to something else than the default (all ones) + * + * This structure manages (de)allocation of isochronous resources (channel and + * bandwidth) for one isochronous stream. + */ +struct fw_iso_resources { + u64 channels_mask; + /* private: */ + struct fw_unit *unit; + struct mutex mutex; + unsigned int channel; + unsigned int bandwidth; /* in bandwidth units, without overhead */ + unsigned int bandwidth_overhead; + int generation; /* in which allocation is valid */ + bool allocated; +}; + +int fw_iso_resources_init(struct fw_iso_resources *r, + struct fw_unit *unit); +void fw_iso_resources_destroy(struct fw_iso_resources *r); + +int fw_iso_resources_allocate(struct fw_iso_resources *r, + unsigned int max_payload_bytes, int speed); +int fw_iso_resources_update(struct fw_iso_resources *r); +void fw_iso_resources_free(struct fw_iso_resources *r); + +#endif -- cgit v1.3.1