From: Tejun Heo Date: Fri, 7 Feb 2014 18:32:07 +0000 (-0500) Subject: sysfs, kobject: add sysfs wrapper for kernfs_enable_ns() X-Git-Tag: v3.15-rc1~140^2~22 X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=fa4cd451cceb77e97432b91fcf50a7e4a7361e29;p=pandora-kernel.git sysfs, kobject: add sysfs wrapper for kernfs_enable_ns() Currently, kobject is invoking kernfs_enable_ns() directly. This is fine now as sysfs and kernfs are enabled and disabled together. If sysfs is disabled, kernfs_enable_ns() is switched to dummy implementation too and everything is fine; however, kernfs will soon have its own config option CONFIG_KERNFS and !SYSFS && KERNFS will be possible, which can make kobject call into non-dummy kernfs_enable_ns() with NULL kernfs_node pointers leading to an oops. Introduce sysfs_enable_ns() which is a wrapper around kernfs_enable_ns() so that it can be made a noop depending only on CONFIG_SYSFS regardless of the planned CONFIG_KERNFS. Signed-off-by: Tejun Heo Reported-by: Fengguang Wu Signed-off-by: Greg Kroah-Hartman --- Reading git-diff-tree failed