From c80ef9e0c021ff86771fdd72583c75d8f7b6a720 Mon Sep 17 00:00:00 2001 From: Arnd Bergmann Date: Fri, 29 May 2015 10:52:59 +0200 Subject: [PATCH] cgroup: add seq_file forward declaration for struct cftype Recent header file changes for cgroup caused lots of warnings about a missing struct seq_file form declaration for every inclusion of include/linux/cgroup-defs.h. As some files are built with -Werror, this leads to build failure like: from /git/arm-soc/drivers/gpu/drm/tilcdc/tilcdc_crtc.c:18: /git/arm-soc/include/linux/cgroup-defs.h:354:25: error: 'struct seq_file' declared inside parameter list [-Werror] cc1: all warnings being treated as errors make[6]: *** [drivers/gpu/drm/tilcdc/tilcdc_crtc.o] Error 1 This patch adds the declaration, which resolves both the warnings and the drm failure. tj: Moved it where other type declarations are. Signed-off-by: Arnd Bergmann Fixes: b4a04ab7a37b ("cgroup: separate out include/linux/cgroup-defs.h") Signed-off-by: Tejun Heo --- include/linux/cgroup-defs.h | 1 + 1 file changed, 1 insertion(+) diff --git a/include/linux/cgroup-defs.h b/include/linux/cgroup-defs.h index 7d83d7f73420..26d1cea7929f 100644 --- a/include/linux/cgroup-defs.h +++ b/include/linux/cgroup-defs.h @@ -26,6 +26,7 @@ struct cgroup_taskset; struct kernfs_node; struct kernfs_ops; struct kernfs_open_file; +struct seq_file; #define MAX_CGROUP_TYPE_NAMELEN 32 #define MAX_CGROUP_ROOT_NAMELEN 64