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SubjectRe: [patch] sysfs: Fix build when sysfs is disabled
Date
On Friday, January 25, 2013 12:13:59 PM David Rientjes wrote:
> "sysfs: Functions for adding/removing symlinks to/from attribute groups"
> causes a build failure when CONFIG_SYSFS is disabled:
>
> drivers/acpi/power.c: In function 'acpi_power_hide_list':
> drivers/acpi/power.c:463: error: implicit declaration of function 'sysfs_remove_link_from_group'
> drivers/acpi/power.c: In function 'acpi_power_expose_list':
> drivers/acpi/power.c:486: error: implicit declaration of function 'sysfs_add_link_to_group'
>
> We need to define empty functions for this config to avoid ifdefs in the
> code.

Can you please send me the .config that triggered those errors? It will be
useful for future build testing.

Thanks,
Rafael


> Signed-off-by: David Rientjes <rientjes@google.com>
> ---
> include/linux/sysfs.h | 12 ++++++++++++
> 1 file changed, 12 insertions(+)
>
> diff --git a/include/linux/sysfs.h b/include/linux/sysfs.h
> --- a/include/linux/sysfs.h
> +++ b/include/linux/sysfs.h
> @@ -330,6 +330,18 @@ static inline void sysfs_unmerge_group(struct kobject *kobj,
> {
> }
>
> +static inline int sysfs_add_link_to_group(struct kobject *kobj,
> + const char *group_name, struct kobject *target,
> + const char *link_name)
> +{
> + return 0;
> +}
> +
> +static inline void sysfs_remove_link_from_group(struct kobject *kobj,
> + const char *group_name, const char *link_name)
> +{
> +}
> +
> static inline void sysfs_notify(struct kobject *kobj, const char *dir,
> const char *attr)
> {
--
I speak only for myself.
Rafael J. Wysocki, Intel Open Source Technology Center.


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