[tip: x86/cleanups] x86/oprofile: Avoid TIF_IA32 when checking 64bit mode

[tip-bot2 for Gabriel Krisman Bertazi]

The following commit has been merged into the x86/cleanups branch of tip:

Commit-ID:     47cd4dac1fb21759ffcfe0600827c87fa6acdfa7
Gitweb:        https://git.kernel.org/tip/47cd4dac1fb21759ffcfe0600827c87fa6acdfa7
Author:        Gabriel Krisman Bertazi <krisman@xxxxxxxxxxxxx>
AuthorDate:    Sat, 03 Oct 2020 23:25:29 -04:00
Committer:     Thomas Gleixner <tglx@xxxxxxxxxxxxx>
CommitterDate: Mon, 26 Oct 2020 13:46:46 +01:00

x86/oprofile: Avoid TIF_IA32 when checking 64bit mode

In preparation to remove TIF_IA32, stop using it in oprofile code. Use
user_64bit_mode() instead.

Signed-off-by: Gabriel Krisman Bertazi <krisman@xxxxxxxxxxxxx>
Signed-off-by: Thomas Gleixner <tglx@xxxxxxxxxxxxx>
Link: https://lore.kernel.org/r/20201004032536.1229030-4-krisman@xxxxxxxxxxxxx

---
 arch/x86/oprofile/backtrace.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/arch/x86/oprofile/backtrace.c b/arch/x86/oprofile/backtrace.c
index a2488b6..1d8391f 100644
--- a/arch/x86/oprofile/backtrace.c
+++ b/arch/x86/oprofile/backtrace.c
@@ -49,7 +49,7 @@ x86_backtrace_32(struct pt_regs * const regs, unsigned int depth)
 	struct stack_frame_ia32 *head;
 
 	/* User process is IA32 */
-	if (!current || !test_thread_flag(TIF_IA32))
+	if (!current || user_64bit_mode(regs))
 		return 0;
 
 	head = (struct stack_frame_ia32 *) regs->bp;