summaryrefslogtreecommitdiff
path: root/arch/arc
diff options
context:
space:
mode:
authorVineet Gupta <vgupta@kernel.org>2020-05-15 02:26:45 +0300
committerVineet Gupta <vgupta@kernel.org>2023-08-18 06:31:59 +0300
commitd1d1569e89e9cc5c07a389ac859bd045b906923c (patch)
tree913967459468fc425a555af4286afa29a2a6a65a /arch/arc
parentcfca4b5abe0cc13f9d9f45f760efd8260e31200f (diff)
downloadlinux-d1d1569e89e9cc5c07a389ac859bd045b906923c.tar.xz
ARC: kernel stack: INIT_THREAD need not setup @init_stack in @ksp
There are 2 pointers to kernel mode stack of a task - task_struct.stack: base address of stack page (max possible stack top) - thread_info.ksp : runtime stack top in __switch_to INIT_THREAD was setting up ksp to stack base which was not really needed - it would get overwritten with dynamic value on first call to __switch_to when init is switched out for the very first time. - generic code already does init_task.stack = init_stack and ARC code uses that to retrieve task's stack base. Signed-off-by: Vineet Gupta <vgupta@kernel.org>
Diffstat (limited to 'arch/arc')
-rw-r--r--arch/arc/include/asm/processor.h4
1 files changed, 1 insertions, 3 deletions
diff --git a/arch/arc/include/asm/processor.h b/arch/arc/include/asm/processor.h
index fb844fce1ab6..82ddc929d6e7 100644
--- a/arch/arc/include/asm/processor.h
+++ b/arch/arc/include/asm/processor.h
@@ -33,9 +33,7 @@ struct thread_struct {
#endif
};
-#define INIT_THREAD { \
- .ksp = sizeof(init_stack) + (unsigned long) init_stack, \
-}
+#define INIT_THREAD { }
/* Forward declaration, a strange C thing */
struct task_struct;