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Zhen Lei 555a70f7ff ARM: 9064/1: hw_breakpoint: Do not directly check the event's overflow_handler hook 
[ Upstream commit a506bd5756 ]

The commit 1879445dfa ("perf/core: Set event's default
::overflow_handler()") set a default event->overflow_handler in
perf_event_alloc(), and replace the check event->overflow_handler with
is_default_overflow_handler(), but one is missing.

Currently, the bp->overflow_handler can not be NULL. As a result,
enable_single_step() is always not invoked.

Comments from Zhen Lei:

 https://patchwork.kernel.org/project/linux-arm-kernel/patch/20210207105934.2001-1-thunder.leizhen@huawei.com/

Fixes: 1879445dfa ("perf/core: Set event's default ::overflow_handler()")
Signed-off-by: Zhen Lei <thunder.leizhen@huawei.com>
Cc: Wang Nan <wangnan0@huawei.com>
Acked-by: Will Deacon <will@kernel.org>
Signed-off-by: Russell King <rmk+kernel@armlinux.org.uk>
Signed-off-by: Sasha Levin <sashal@kernel.org>
2021-05-22 10:40:31 +02:00
..
.gitignore
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arch_timer.c
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armksyms.c
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asm-offsets.c
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atags_compat.c
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atags_parse.c
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atags_proc.c
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atags.h
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bios32.c
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bugs.c
ARM: clean up per-processor check_bugs method call
2019-02-20 10:18:27 +01:00
calls.S
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cpuidle.c
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crash_dump.c
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debug.S
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devtree.c
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dma-isa.c
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dma.c
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early_printk.c
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efi.c
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elf.c
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entry-armv.S
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entry-common.S
ARM: 8802/1: Call syscall_trace_exit even when system call skipped
2019-11-25 09:53:49 +01:00
entry-ftrace.S
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entry-header.S
ARM: spectre-v1: fix syscall entry
2018-11-23 08:20:39 +01:00
entry-v7m.S
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fiq.c
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fiqasm.S
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ftrace.c
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head-common.S
ARM: make lookup_processor_type() non-__init
2019-02-20 10:18:26 +01:00
head-nommu.S
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head.S
ARM: p2v: fix handling of LPAE translation in BE mode
2020-12-29 13:44:53 +01:00
hibernate.c
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hw_breakpoint.c
ARM: 9064/1: hw_breakpoint: Do not directly check the event's overflow_handler hook
2021-05-22 10:40:31 +02:00
hyp-stub.S
ARM: 8848/1: virt: Align GIC version check with arm64 counterpart
2020-01-29 10:24:18 +01:00
insn.c
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io.c
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irq.c
ARM: 8824/1: fix a migrating irq bug when hotplug cpu
2019-03-23 13:19:42 +01:00
isa.c
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iwmmxt.S
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jump_label.c
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kgdb.c
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machine_kexec.c
ARM: avoid Cortex-A9 livelock on tight dmb loops
2019-04-05 22:29:13 +02:00
Makefile
ARM: bugs: prepare processor bug infrastructure
2018-11-23 08:20:37 +01:00
module-plts.c
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module.c
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module.lds
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opcodes.c
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paravirt.c
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patch.c
ARM: 8839/1: kprobe: make patch_lock a raw_spinlock_t
2019-04-20 09:07:53 +02:00
perf_callchain.c
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perf_event_v6.c
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perf_event_v7.c
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perf_event_xscale.c
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perf_regs.c
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pj4-cp0.c
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process.c
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psci_smp.c
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ptrace.c
ARM: 8977/1: ptrace: Fix mask for thumb breakpoint hook
2020-06-20 10:24:08 +02:00
reboot.c
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reboot.h
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relocate_kernel.S
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return_address.c
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setup.c
ARM: spectre-v2: per-CPU vtables to work around big.Little systems
2019-02-20 10:18:27 +01:00
signal.c
ARM: 8793/1: signal: replace __put_user_error with __put_user
2019-02-20 10:18:25 +01:00
sigreturn_codes.S
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sleep.S
ARM: 8847/1: pm: fix HYP/SVC mode mismatch when MCPM is used
2020-01-29 10:24:18 +01:00
smccc-call.S
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smp_scu.c
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smp_tlb.c
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smp_twd.c
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smp.c
ARM: prevent tracing IPI_CPU_BACKTRACE
2019-06-22 08:17:12 +02:00
stacktrace.c
ARM: 8992/1: Fix unwind_frame for clang-built kernels
2020-08-21 11:02:06 +02:00
suspend.c
ARM: bugs: hook processor bug checking into SMP and suspend paths
2018-11-23 08:20:37 +01:00
swp_emulate.c
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sys_arm.c
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sys_oabi-compat.c
ARM: 8792/1: oabi-compat: copy oabi events using __copy_to_user()
2019-02-20 10:18:25 +01:00
tcm.c
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thumbee.c
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time.c
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topology.c
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traps.c
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unwind.c
ARM: 8840/1: use a raw_spinlock_t in unwind
2019-04-05 22:29:08 +02:00
v7m.c
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vdso.c
ARM: 8957/1: VDSO: Match ARMv8 timer in cntvct_functional()
2020-03-20 09:07:58 +01:00
vmlinux-xip.lds.S
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vmlinux.lds.S
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xscale-cp0.c
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