[tip: timers/nohz] arm: Remove TIF_NOHZ

[tip-bot2 for Frederic Weisbecker]

The following commit has been merged into the timers/nohz branch of tip:

Commit-ID:     1acb2249ee380f56ffb4200ac85bfe233d7a8ca3
Gitweb:        https://git.kernel.org/tip/1acb2249ee380f56ffb4200ac85bfe233d7a8ca3
Author:        Frederic Weisbecker <frederic@xxxxxxxxxx>
AuthorDate:    Tue, 28 Jan 2020 13:50:32 +01:00
Committer:     Frederic Weisbecker <frederic@xxxxxxxxxx>
CommitterDate: Fri, 14 Feb 2020 16:05:33 +01:00

arm: Remove TIF_NOHZ

Arm entry code calls context tracking from fast path. TIF_NOHZ is unused
and can be safely removed.

Signed-off-by: Frederic Weisbecker <frederic@xxxxxxxxxx>
Cc: Thomas Gleixner <tglx@xxxxxxxxxxxxx>
Cc: Ingo Molnar <mingo@xxxxxxxxxx>
Cc: Peter Zijlstra <peterz@xxxxxxxxxxxxx>
Cc: Russell King <linux@xxxxxxxxxxxxxxx>
---
 arch/arm/Kconfig                   | 1 -
 arch/arm/include/asm/thread_info.h | 1 -
 2 files changed, 2 deletions(-)

diff --git a/arch/arm/Kconfig b/arch/arm/Kconfig
index 38b764c..97864aa 100644
--- a/arch/arm/Kconfig
+++ b/arch/arm/Kconfig
@@ -72,7 +72,6 @@ config ARM
 	select HAVE_ARM_SMCCC if CPU_V7
 	select HAVE_EBPF_JIT if !CPU_ENDIAN_BE32
 	select HAVE_CONTEXT_TRACKING
-	select HAVE_TIF_NOHZ
 	select HAVE_COPY_THREAD_TLS
 	select HAVE_C_RECORDMCOUNT
 	select HAVE_DEBUG_KMEMLEAK if !XIP_KERNEL
diff --git a/arch/arm/include/asm/thread_info.h b/arch/arm/include/asm/thread_info.h
index 0d0d517..3609a69 100644
--- a/arch/arm/include/asm/thread_info.h
+++ b/arch/arm/include/asm/thread_info.h
@@ -141,7 +141,6 @@ extern int vfp_restore_user_hwstate(struct user_vfp *,
 #define TIF_SYSCALL_TRACEPOINT	6	/* syscall tracepoint instrumentation */
 #define TIF_SECCOMP		7	/* seccomp syscall filtering active */
 
-#define TIF_NOHZ		12	/* in adaptive nohz mode */
 #define TIF_USING_IWMMXT	17
 #define TIF_MEMDIE		18	/* is terminating due to OOM killer */
 #define TIF_RESTORE_SIGMASK	20