diff mbox series

[v2,8/8] powerpc: copy_thread don't set PPR in user interrupt frame regs

Message ID 20230325122904.2375060-9-npiggin@gmail.com (mailing list archive)
State Accepted
Commit 89fb39134ae3b1e1f207af44a037721d92b32f70
Headers show
Series powerpc: copy_thread cleanups | expand

Commit Message

Nicholas Piggin March 25, 2023, 12:29 p.m. UTC 
syscalls do not set the PPR field in their interrupt frame and
return from syscall always sets the default PPR for userspace,
so setting the value in the ret_from_fork frame is not necessary
and mildly inconsistent. Remove it.

Signed-off-by: Nicholas Piggin <npiggin@gmail.com>
---
 arch/powerpc/kernel/process.c | 5 -----
 1 file changed, 5 deletions(-)
diff mbox series

Patch

diff --git a/arch/powerpc/kernel/process.c b/arch/powerpc/kernel/process.c
index 4140b25f489f..52e18cec865b 100644
--- a/arch/powerpc/kernel/process.c
+++ b/arch/powerpc/kernel/process.c
@@ -1812,11 +1812,6 @@  int copy_thread(struct task_struct *p, const struct kernel_clone_args *args)
 				f = ret_from_fork;
 		}
 
-#ifdef CONFIG_PPC64
-		if (cpu_has_feature(CPU_FTR_HAS_PPR))
-			childregs->ppr = DEFAULT_PPR;
-#endif
-
 		childregs->msr &= ~(MSR_FP|MSR_VEC|MSR_VSX);
 		p->thread.regs = childregs;
 	}