From: Thomas Gleixner <tglx@linutronix.de>
Date: Wed, 8 Sep 2021 15:29:12 +0200
Subject: x86/extable: Tidy up redundant handler functions
Git-commit: 326b567f82df0c4c8f50092b9af9a3014616fb3c
Patch-mainline: v5.15 or v5.15-rc8 (next release)
References: jsc#SLE-18931

No need to have the same code all over the place.

Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Signed-off-by: Borislav Petkov <bp@suse.de>
Link: https://lkml.kernel.org/r/20210908132524.963232825@linutronix.de
---
 arch/x86/mm/extable.c | 16 +++++-----------
 1 file changed, 5 insertions(+), 11 deletions(-)

diff --git a/arch/x86/mm/extable.c b/arch/x86/mm/extable.c
index e1664e9f969c..d9a1046f3a98 100644
--- a/arch/x86/mm/extable.c
+++ b/arch/x86/mm/extable.c
@@ -39,9 +39,8 @@ __visible bool ex_handler_fault(const struct exception_table_entry *fixup,
 				unsigned long error_code,
 				unsigned long fault_addr)
 {
-	regs->ip = ex_fixup_addr(fixup);
 	regs->ax = trapnr;
-	return true;
+	return ex_handler_default(fixup, regs, trapnr, error_code, fault_addr);
 }
 EXPORT_SYMBOL_GPL(ex_handler_fault);
 
@@ -76,8 +75,7 @@ __visible bool ex_handler_uaccess(const struct exception_table_entry *fixup,
 				  unsigned long fault_addr)
 {
 	WARN_ONCE(trapnr == X86_TRAP_GP, "General protection fault in user access. Non-canonical address?");
-	regs->ip = ex_fixup_addr(fixup);
-	return true;
+	return ex_handler_default(fixup, regs, trapnr, error_code, fault_addr);
 }
 EXPORT_SYMBOL(ex_handler_uaccess);
 
@@ -87,9 +85,7 @@ __visible bool ex_handler_copy(const struct exception_table_entry *fixup,
 			       unsigned long fault_addr)
 {
 	WARN_ONCE(trapnr == X86_TRAP_GP, "General protection fault in user access. Non-canonical address?");
-	regs->ip = ex_fixup_addr(fixup);
-	regs->ax = trapnr;
-	return true;
+	return ex_handler_fault(fixup, regs, trapnr, error_code, fault_addr);
 }
 EXPORT_SYMBOL(ex_handler_copy);
 
@@ -103,10 +99,9 @@ __visible bool ex_handler_rdmsr_unsafe(const struct exception_table_entry *fixup
 		show_stack_regs(regs);
 
 	/* Pretend that the read succeeded and returned 0. */
-	regs->ip = ex_fixup_addr(fixup);
 	regs->ax = 0;
 	regs->dx = 0;
-	return true;
+	return ex_handler_default(fixup, regs, trapnr, error_code, fault_addr);
 }
 EXPORT_SYMBOL(ex_handler_rdmsr_unsafe);
 
@@ -121,8 +116,7 @@ __visible bool ex_handler_wrmsr_unsafe(const struct exception_table_entry *fixup
 		show_stack_regs(regs);
 
 	/* Pretend that the write succeeded. */
-	regs->ip = ex_fixup_addr(fixup);
-	return true;
+	return ex_handler_default(fixup, regs, trapnr, error_code, fault_addr);
 }
 EXPORT_SYMBOL(ex_handler_wrmsr_unsafe);