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LinuxKPI: Add devm_device_add_group to linux/device.h

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devm_device_add_group creates a managed attribute group for a device.

Sponsored by:	Serenity Cyber Security, LLC
MFC after:	1 week
Reviewed by:	manu
Differential Revision:	https://reviews.freebsd.org/D45845
This commit is contained in:
Vladimir Kondratyev 2024-07-21 16:09:12 +03:00
parent 80aa295a52
commit a1181662d3
2 changed files with 34 additions and 0 deletions
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4
sys/compat/linuxkpi/common/include/linux/device.h
View File

@ -701,4 +701,8 @@ int lkpi_devm_add_action_or_reset(struct device *dev, void (*action)(void *), vo
#define devm_add_action_or_reset(dev, action, data) \
lkpi_devm_add_action_or_reset(dev, action, data)
int lkpi_devm_device_add_group(struct device *dev, const struct attribute_group *group);
#define devm_device_add_group(dev, group) \
lkpi_devm_device_add_group(dev, group)
#endif /* _LINUXKPI_LINUX_DEVICE_H_ */

30
sys/compat/linuxkpi/common/src/linux_compat.c
View File

@ -2615,6 +2615,36 @@ device_can_wakeup(struct device *dev)
return (false);
}
static void
devm_device_group_remove(struct device *dev, void *p)
{
const struct attribute_group **dr = p;
const struct attribute_group *group = *dr;
sysfs_remove_group(&dev->kobj, group);
}
int
lkpi_devm_device_add_group(struct device *dev,
const struct attribute_group *group)
{
const struct attribute_group **dr;
int ret;
dr = devres_alloc(devm_device_group_remove, sizeof(*dr), GFP_KERNEL);
if (dr == NULL)
return (-ENOMEM);
ret = sysfs_create_group(&dev->kobj, group);
if (ret == 0) {
*dr = group;
devres_add(dev, dr);
} else
devres_free(dr);
return (ret);
}
#if defined(__i386__) || defined(__amd64__)
bool linux_cpu_has_clflush;
struct cpuinfo_x86 boot_cpu_data;