From 6d97af487dee3176cb1342d4ab16637e495440ad Mon Sep 17 00:00:00 2001 From: Sven Schnelle Date: Wed, 4 May 2022 08:23:50 +0200 Subject: entry: Rename arch_check_user_regs() to arch_enter_from_user_mode() arch_check_user_regs() is used at the moment to verify that struct pt_regs contains valid values when entering the kernel from userspace. s390 needs a place in the generic entry code to modify a cpu data structure when switching from userspace to kernel mode. As arch_check_user_regs() is exactly this, rename it to arch_enter_from_user_mode(). When entering the kernel from userspace, arch_check_user_regs() is used to verify that struct pt_regs contains valid values. Note that the NMI codepath doesn't call this function. s390 needs a place in the generic entry code to modify a cpu data structure when switching from userspace to kernel mode. As arch_check_user_regs() is exactly this, rename it to arch_enter_from_user_mode(). Signed-off-by: Sven Schnelle Reviewed-by: Thomas Gleixner Acked-by: Peter Zijlstra (Intel) Cc: Andy Lutomirski Link: https://lore.kernel.org/r/20220504062351.2954280-2-tmricht@linux.ibm.com Signed-off-by: Heiko Carstens --- kernel/entry/common.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) (limited to 'kernel/entry') diff --git a/kernel/entry/common.c b/kernel/entry/common.c index 93c3b86e781c..9e63923c5a0f 100644 --- a/kernel/entry/common.c +++ b/kernel/entry/common.c @@ -17,7 +17,7 @@ /* See comment for enter_from_user_mode() in entry-common.h */ static __always_inline void __enter_from_user_mode(struct pt_regs *regs) { - arch_check_user_regs(regs); + arch_enter_from_user_mode(regs); lockdep_hardirqs_off(CALLER_ADDR0); CT_WARN_ON(ct_state() != CONTEXT_USER); -- cgit v1.2.3-70-g09d2