diff --git a/sys/compat/linuxkpi/common/include/linux/device.h b/sys/compat/linuxkpi/common/include/linux/device.h --- a/sys/compat/linuxkpi/common/include/linux/device.h +++ b/sys/compat/linuxkpi/common/include/linux/device.h @@ -701,4 +701,8 @@ #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_ */ diff --git a/sys/compat/linuxkpi/common/src/linux_compat.c b/sys/compat/linuxkpi/common/src/linux_compat.c --- a/sys/compat/linuxkpi/common/src/linux_compat.c +++ b/sys/compat/linuxkpi/common/src/linux_compat.c @@ -2615,6 +2615,36 @@ 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;