Subject: [PATCH v2 07/10] powerpc: Do not call __kernel_text_address() in show_instructions()

From: Murilo Opsfelder Araujo <[email-masked]>
Date: Fri, 27 Jul 2018 11:58:08 -0300

Modify show_instructions() not to call __kernel_text_address(), allowing
userspace instruction dump.  probe_kernel_address(), which returns -EFAULT
if something goes wrong, is still being called.

Signed-off-by: Murilo Opsfelder Araujo <[email-masked]>
---
 arch/powerpc/kernel/process.c | 3 +--
 1 file changed, 1 insertion(+), 2 deletions(-)

diff --git a/arch/powerpc/kernel/process.c b/arch/powerpc/kernel/process.c
index 25b562c21b7b..04960796fcce 100644
--- a/arch/powerpc/kernel/process.c
+++ b/arch/powerpc/kernel/process.c
@@ -1283,8 +1283,7 @@ static void show_instructions(struct pt_regs *regs)
 			pc = (unsigned long)phys_to_virt(pc);
 #endif
 
-		if (!__kernel_text_address(pc) ||
-		     probe_kernel_address((unsigned int __user *)pc, instr)) {
+		if (probe_kernel_address((unsigned int __user *)pc, instr)) {
 			pr_cont("XXXXXXXX ");
 		} else {
 			if (regs->nip == pc)
-- 
2.17.1