#ifndef _UAPI_LINUX_WAIT_H #define _UAPI_LINUX_WAIT_H #define WNOHANG 0x00000001 #define WUNTRACED 0x00000002 #define WSTOPPED WUNTRACED #define WEXITED 0x00000004 #define WCONTINUED 0x00000008 #define WNOWAIT 0x01000000 /* Don't reap, just poll status. */ #define __WNOTHREAD 0x20000000 /* Don't wait on children of other threads in this group */ #define __WALL 0x40000000 /* Wait on all children, regardless of type */ #define __WCLONE 0x80000000 /* Wait only on non-SIGCHLD children */ /* First argument to waitid: */ #define P_ALL 0 #define P_PID 1 #define P_PGID 2 #endif /* _UAPI_LINUX_WAIT_H */ '>cgit logo index : net-next.git
net-next plumbingsTobias Klauser
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-05-05 19:00:40 +0100
commita41980f2a3eb33ed7a2636e83498b47e95ceb05b (patch)
tree7a85fde3ff00fe6964f0dbbe334736b4c36e82d1 /kernel/trace
parentf55532a0c0b8bb6148f4e07853b876ef73bc69ca (diff)
ARM: 8566/1: drivers: amba: properly handle devices with power domains
To read pid/cid registers, the probed device need to be properly turned on. When it is inside a power domain, the bus code should ensure that the given power domain is enabled before trying to access device's registers. However in some cases power domain (or clocks) might not be yet available. Returning -EPROBE_DEFER is not a solution in such case, because callers don't handle this special error code. Instead such devices are added to the special list and their registration is retried from periodic worker until all resources are available. Signed-off-by: Marek Szyprowski <m.szyprowski@samsung.com> Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
Diffstat (limited to 'kernel/trace')