Re: [patch V2 06/15] rcuwait: Add @state argument to rcuwait_wait_event()

[Davidlohr Bueso]

On Wed, 18 Mar 2020, Thomas Gleixner wrote:

--- a/include/linux/rcuwait.h
+++ b/include/linux/rcuwait.h
@@ -3,6 +3,7 @@
#define _LINUX_RCUWAIT_H_

#include <linux/rcupdate.h>
+#include <linux/sched/signal.h>

So this is causing build to fail for me:

 CC      arch/x86/boot/compressed/cmdline.o
arch/x86/boot/compressed/cmdline.c:5:20: error: conflicting types for 
‘set_fs’
static inline void set_fs(unsigned long seg)
                   ^~~~~~
In file included from ./include/linux/uaccess.h:11:0,
                from ./include/linux/sched/task.h:11,
                from ./include/linux/sched/signal.h:9,
                from ./include/linux/rcuwait.h:6,
                from ./include/linux/percpu-rwsem.h:8,
                from ./include/linux/fs.h:34,
                from ./include/linux/proc_fs.h:9,
                from ./include/acpi/acpi_bus.h:83,
                from ./include/linux/acpi.h:32,
                from arch/x86/boot/compressed/misc.h:28,
                from arch/x86/boot/compressed/cmdline.c:2:
./arch/x86/include/asm/uaccess.h:29:20: note: previous definition of 
‘set_fs’ was here
static inline void set_fs(mm_segment_t fs)
                   ^~~~~~
make[2]: *** [scripts/Makefile.build:268: arch/x86/boot/compressed/cmdline.o] 
Error 1
make[1]: *** [arch/x86/boot/Makefile:113: arch/x86/boot/compressed/vmlinux] 
Error 2
make: *** [arch/x86/Makefile:285: bzImage] Error 2

Right now I'm not sure what the proper fix should be.

Thanks,
Davidlohr