There is a error message within devm_ioremap_resource
already, so remove the dev_err call to avoid redundant
error message.
Reported-by: Hulk Robot
Signed-off-by: Wei Li
---
drivers/mtd/nand/raw/hisi504_nand.c | 4 +---
1 file changed, 1 insertion(+), 3 deletions(-)
diff --git a/drivers/mtd
There is a error message within devm_ioremap_resource
already, so remove the dev_err call to avoid redundant
error message.
Reported-by: Hulk Robot
Signed-off-by: Wei Li
---
drivers/gpu/drm/hisilicon/kirin/kirin_drm_ade.c | 4 +---
1 file changed, 1 insertion(+), 3 deletions(-)
diff --git
; On Mon, Dec 07, 2020 at 09:35:06AM +, Marc Zyngier wrote:
>>>>> On 2020-12-07 09:09, Ard Biesheuvel wrote:
>>>>>> (+ Marc)
>>>>>>
>>>>>> On Fri, 4 Dec 2020 at 12:14, Will Deacon wrote:
>>>>>>>
>&
For the memory hole, sparse memory model that define SPARSEMEM_VMEMMAP
do not free the reserved memory for the page map, decrease the section
size can reduce the waste of reserved memory.
Signed-off-by: Wei Li
Signed-off-by: Baopeng Feng
Signed-off-by: Xia Qing
---
arch/arm64/include/asm
. It is not possible to filter on vector length.
- Incomplete predicate and empty predicate fields in the Events packet,
and filtering on these events using PMSEVFR_EL1.
Update the check of pmsevfr for empty/partial predicated SVE and
alignment event in SPE driver.
Signed-off-by: Wei Li
---
v3 ->
it was not supported on all MIPS
platforms.
This patch add the support for irq migration on MIPS CPS platform, and
it's tested on the interAptiv processor.
Signed-off-by: Wei Li
---
arch/mips/Kconfig | 1 +
arch/mips/kernel/smp-cps.c | 2 ++
2 files changed, 3 insertions(+)
diff --git a/arch
'pmsver' as cap attribute to userspace.
Signed-off-by: Wei Li
---
v2 -> v3:
- Make the definition of 'pmsevfr_res0' progressive and easy to check.
(Suggested by Will.)
---
v1 -> v2:
- Rename 'pmuver' to 'pmsver', change it's type to 'u16' from 'int'.
(Suggested by Will and Leo.)
-
When it fails to call of_get_property(), it just jumps to 'fail1',
while the 'status' which will be returned is not updated.
Fixes: 2b571a066a2f ("pcmcia: CompactFlash driver for PA Semi Electra boards")
Signed-off-by: Wei Li
---
drivers/pcmcia/electra_cf.c | 1 +
1 file changed, 1
rheap functions to use ulongs instead of
pointers")
Signed-off-by: Wei Li
---
drivers/net/ethernet/freescale/fs_enet/mac-fcc.c | 2 +-
drivers/net/ethernet/freescale/fs_enet/mac-scc.c | 2 +-
2 files changed, 2 insertions(+), 2 deletions(-)
diff --git a/drivers/net/ethernet/freescale/
IS_ERR_VALUE macro should be used only with unsigned long type.
Especially it works incorrectly with unsigned shorter types on
64bit machines.
Fixes: 4c35630ccda5 ("[POWERPC] Change rheap functions to use ulongs instead of
pointers")
Signed-off-by: Wei Li
---
drivers/net/ethernet
dd SECCOMP_FILTER")
Fixes: bdcd93ef9afb ("csky: Add context tracking support")
Signed-off-by: Wei Li
---
.../features/locking/queued-rwlocks/arch-support.txt | 2 +-
.../features/locking/queued-spinlocks/arch-support.txt| 2 +-
.../features/seccomp/secc
When it fail to create crtc_event kthread, it just jump to err_msm_uninit,
while the 'ret' is not updated. So assign the return code before that.
Fixes: 25fdd5933e4c ("drm/msm: Add SDM845 DPU support")
Reported-by: Hulk Robot
Signed-off-by: Wei Li
---
drivers/gpu/drm/msm/msm_drv.
When it fail to request_region, it just jump to 'fail_disable',
while the 'ret' is not updated. So assign the return code before
that.
Fixes: 8674a8aa2c39 ("scsi: fdomain: Add PCMCIA support")
Reported-by: Hulk Robot
Signed-off-by: Wei Li
---
drivers/scsi/pcmcia/fdomain_cs.c | 4 ++
'pmsver' as cap attribute to userspace.
Signed-off-by: Wei Li
---
v1 -> v2:
- Rename 'pmuver' to 'pmsver', change it's type to 'u16' from 'int'.
(Suggested by Will and Leo.)
- Expose 'pmsver' as cap attribute through sysfs, instead of printing.
(Suggested by Will.)
---
arch/arm64/incl
Commit 442e14a2c55e ("MIPS: Add 1074K CPU support explicitly.") split
1074K from the 74K as an unique CPU type, while it missed to add the
'CPU_1074K' in __get_cpu_type(). So let's add it back.
Fixes: 442e14a2c55e ("MIPS: Add 1074K CPU support explicitly.")
Signed-off-by: We
As there is no known soc powered by mips 1074K in bcm47xx series,
the check with 1074K is needless. So just remove it.
Link: https://wireless.wiki.kernel.org/en/users/Drivers/b43/soc
Fixes: 442e14a2c55e ("MIPS: Add 1074K CPU support explicitly.")
Signed-off-by: Wei Li
---
arch/mi
iss_rd/
0.001416690 seconds time elapsed
0.001469000 seconds user
0.0 seconds sys
Wei Li (2):
perf stat: Fix segfault when counting armv8 PMU events
perf stat: Unbreak perf stat with armv8 PMU events
tools/lib/perf/include/in
to mark this situation and avoid using the
affinity technique when closing/enabling/disabling events.
Fixes: 7736627b865d ("perf stat: Use affinity for closing file descriptors")
Fixes: 704e2f5b700d ("perf stat: Use affinity for enabling/disabling events")
Signed-off-by: Wei Li
ation.
Fixes: 4804e0111662 ("perf stat: Use affinity for opening events")
Signed-off-by: Wei Li
---
tools/perf/builtin-stat.c | 36 +++-
1 file changed, 23 insertions(+), 13 deletions(-)
diff --git a/tools/perf/builtin-stat.c b/tools/perf/builtin-st
Rename the header guard of r4k-timer.h from __ASM_R4K_TYPES_H to
__ASM_R4K_TIMER_H what corresponding with the file name.
Signed-off-by: Wei Li
---
arch/mips/include/asm/r4k-timer.h | 6 +++---
1 file changed, 3 insertions(+), 3 deletions(-)
diff --git a/arch/mips/include/asm/r4k-timer.h
b
Since we have introduced map_for_each_event() to walk the 'pmu_events_map',
clean up metricgroup__print() and metricgroup__has_metric() with it.
Signed-off-by: Wei Li
Acked-by: Namhyung Kim
---
v1 -> v2:
- Move map_for_each_metric() after match_metric() to avoid potential
use-before-decl
In rx_request_irq(), it will just return what irq_set_affinity_hint()
returns. If it is failed, the napi and irq requested are not freed
properly. So add exits for failures to handle these.
Signed-off-by: Wei Li
---
v1 -> v2:
- Free irq as well when irq_set_affinity_hint() fails.
---
driv
user (e.g. missing -i for perf.data).
As we can use "--symbol-filter=" if we really want to filter a symbol,
it may be better to revert this misfeature.
Signed-off-by: Wei Li
---
tools/perf/builtin-report.c | 8 ++--
1 file changed, 2 insertions(+), 6 deletions(-)
diff --git
In rx_request_irq(), it will just return what irq_set_affinity_hint()
returns. If it is failed, the napi added is not deleted properly.
Add a common exit for failures to do this.
Signed-off-by: Wei Li
---
drivers/net/ethernet/huawei/hinic/hinic_rx.c | 19 ---
1 file changed, 12
Since we have introduced map_for_each_event() to walk the 'pmu_events_map',
clean up metricgroup__print() and metricgroup__has_metric() with it.
Signed-off-by: Wei Li
---
tools/perf/util/metricgroup.c | 33 +
1 file changed, 13 insertions(+), 20 deletions
The help info of option "--no-bpf-event" is wrongly described as
"record bpf events", correct it.
Fixes: 71184c6ab7e6 ("perf record: Replace option --bpf-event with
--no-bpf-event")
Signed-off-by: Wei Li
---
tools/perf/builtin-record.c | 2 +-
1 file chang
For the memory hole, sparse memory model that define SPARSEMEM_VMEMMAP
do not free the reserved memory for the page map, this patch do it.
Signed-off-by: Wei Li
Signed-off-by: Chen Feng
Signed-off-by: Xia Qing
v2: fix the patch v1 compile errors that are not based on the latest mainline
. It is not possible to filter on vector length.
- Incomplete predicate and empty predicate fields in the Events packet,
and filtering on these events using PMSEVFR_EL1.
Update the check of pmsevfr for empty/partial predicated SVE and
alignment event in kernel driver.
Signed-off-by: Wei Li
---
arch/arm64
packet and Operation Type
packet in perf tool.
Patch 3-4: Synthesize unaligned address access events and partial/empty
predicated SVE events, also add two itrace options for filtering.
Wei Li (4):
drivers/perf: Add support for ARMv8.3-SPE
perf: arm-spe: Add support for ARMv8.3-SPE
perf
. It is not possible to filter on vector length.
- Incomplete predicate and empty predicate fields in the Events packet,
and filtering on these events using PMSEVFR_EL1.
Add the corresponding decode process of Events packet and Operation Type
packet in perf tool.
Signed-off-by: Wei Li
---
.../arm-spe
Synthesize unaligned address access events and partial/empty
predicated SVE operation introduced by ARMv8.3-SPE.
They can be filtered by itrace options when reporting.
Signed-off-by: Wei Li
---
.../util/arm-spe-decoder/arm-spe-decoder.c| 11
.../util/arm-spe-decoder/arm-spe-decoder.h
This patch is to add two options to synthesize events which are
described as below:
'u': synthesize unaligned address access events
'v': synthesize partial/empty predicated SVE events
This two options will be used by ARM SPE as their first consumer.
Signed-off-by: Wei Li
---
tools/perf
In arm_spe_read_record(), when we are processing an events packet,
'decoder->packet.index' is the length of payload, which has been
transformed in payloadlen(). So correct the check of 'idx'.
Signed-off-by: Wei Li
---
tools/perf/util/arm-spe-decoder/arm-spe-decoder.c | 6 +++---
1 file chan
far it only supports "statistical-profiling-extension-v1" and
we have no chance to use multiple SPE's PMU events in Perf command.
So remove the useless check code to make it clear.
Signed-off-by: Wei Li
---
tools/perf/arch/arm/util/auxtrace.c | 9 -
1 file changed, 4 insertions(
v1 -> v2:
- Optimize code in patch 1 as Mathieu adviced.
- Fix memleak in patch 2.
- Detail the commit info to explain the reason.
This patch set fixes perf record failure when we mix arm_spe_x event
with other events in specific order.
Wei Li (2):
perf tools: Fix record failure when mi
ols: Add ARM Statistical Profiling Extensions
(SPE) support")
Signed-off-by: Wei Li
---
tools/perf/arch/arm/util/auxtrace.c | 8
1 file changed, 4 insertions(+), 4 deletions(-)
diff --git a/tools/perf/arch/arm/util/auxtrace.c
b/tools/perf/arch/arm/util/auxtrace.c
index 0a6e75b8777a.
For the memory hole, sparse memory model that define SPARSEMEM_VMEMMAP
do not free the reserved memory for the page map, this patch do it.
Signed-off-by: Wei Li
Signed-off-by: Chen Feng
Signed-off-by: Xia Qing
---
arch/arm64/mm/init.c | 81
: ffd3d18c20b8d ("perf tools: Add ARM Statistical Profiling Extensions
(SPE) support")
Signed-off-by: Wei Li
---
tools/perf/arch/arm/util/auxtrace.c | 10 +-
1 file changed, 9 insertions(+), 1 deletion(-)
diff --git a/tools/perf/arch/arm/util/auxtrace.c
b/tools/perf/arch/arm/util/auxtra
This patch set fixes perf record failure when we mix arm_spe_x event with
other events in specific order.
Wei Li (2):
perf tools: ARM SPE code cleanup
perf tools: Fix record failure when mixed with ARM SPE event
tools/perf/arch/arm/util/auxtrace.c | 16 +++-
1 file changed, 11
Remove the useless check code to make it clear.
Signed-off-by: Wei Li
---
tools/perf/arch/arm/util/auxtrace.c | 6 ++
1 file changed, 2 insertions(+), 4 deletions(-)
diff --git a/tools/perf/arch/arm/util/auxtrace.c
b/tools/perf/arch/arm/util/auxtrace.c
index 0a6e75b8777a..62b7b03d691a
blocks
Signed-off-by: Wei Li
---
tools/perf/util/parse-events.c | 7 ---
1 file changed, 4 insertions(+), 3 deletions(-)
diff --git a/tools/perf/util/parse-events.c b/tools/perf/util/parse-events.c
index 3decbb203846..b2acacd5646e 100644
--- a/tools/perf/util/parse-events.c
+++ b/tools/perf
->he_selection when
accessing it's member res_samples in perf_evsel__hists_browse().
These processes are meaningful for specified samples, so we can
skip these when nothing is selected.
Fixes: 4968ac8fb7c3 ("perf report: Implement browsing of individual samples")
Signed-off-by: Wei Li
---
Fix several memory errors in perf tool.
Hongbo Yao (1):
perf metrictroup: Fix memory leak of metric_events
Li Bin (2):
perf svghelper: Fix memory leak in svg_build_topology_map
perf util: Fix potential segment fault in put_tracepoints_path
Xie XiuQi (1):
perf util: Fix memory leak of
From: Li Bin
This patch fix potential segment fault triggerd in put_tracepoints_path
when the address of the local variable 'path' be freed in error path
of record_saved_cmdline.
Signed-off-by: Li Bin
---
tools/perf/util/trace-event-info.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
From: Hongbo Yao
Fix memory leak of metric_events in function metricgroup__setup_events()
Signed-off-by: Hongbo Yao
---
tools/perf/util/metricgroup.c | 3 +++
1 file changed, 3 insertions(+)
diff --git a/tools/perf/util/metricgroup.c b/tools/perf/util/metricgroup.c
index
From: Xie XiuQi
Need to free "str" before return when asprintf() failed
to avoid memory leak.
Signed-off-by: Xie XiuQi
---
tools/perf/util/sort.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/tools/perf/util/sort.c b/tools/perf/util/sort.c
index
From: Li Bin
Fix leak of memory pointed to by t.sib_thr and t.sib_core in
svg_build_topology_map.
Signed-off-by: Li Bin
---
tools/perf/util/svghelper.c | 10 +++---
1 file changed, 7 insertions(+), 3 deletions(-)
diff --git a/tools/perf/util/svghelper.c b/tools/perf/util/svghelper.c
that 'KDBFLAGS' is a misfeature.
So let's replace 'KDBFLAGS' with 'KDBDEBUG' to just show the value we
wrote into. After this modification, we can use `md4c1 kdb_flags` instead,
to observe the state flags.
Suggested-by: Daniel Thompson
Signed-off-by: Wei Li
---
v2 -> v3:
- Change to replace the internal
'KDBFLAGS' is an internal variable of kdb, it is combined by 'KDBDEBUG'
and state flags. But the user can define an environment variable named
'KDBFLAGS' too, so let's make it undefinable to avoid confusion.
Signed-off-by: Wei Li
Reviewed-by: Douglas Anderson
---
v1 -> v2:
- Fix lack of bra
Remove redundant assignment, no functional change.
Signed-off-by: Wei Li
---
tools/perf/builtin-timechart.c | 1 -
1 file changed, 1 deletion(-)
diff --git a/tools/perf/builtin-timechart.c b/tools/perf/builtin-timechart.c
index 9e84fae9b096..5e4f809d7e5d 100644
--- a/tools/perf/builtin
'KDBFLAGS' is an internal variable of kdb, it is combined by 'KDBDEBUG'
and state flags. But the user can define an environment variable named
'KDBFLAGS' too, so let's make it undefinable to avoid confusion.
Signed-off-by: Wei Li
---
kernel/debug/kdb/kdb_main.c | 3 ++-
1 file changed, 2
trap detection",
https://www.spinics.net/lists/arm-kernel/msg803741.html
Wei Li (4):
arm64: kgdb: Fix single-step exception handling oops
arm64: Extract kprobes_save_local_irqflag() and
kprobes_restore_local_irqflag()
arm64: kgdb: Fix single-stepping into the irq handler wrongly
arm64:
as
kernel_prepare_single_step() and kernel_cleanup_single_step() for
general use.
Signed-off-by: Wei Li
---
arch/arm64/include/asm/debug-monitors.h | 4
arch/arm64/kernel/debug-monitors.c | 26 +++
arch/arm64/kernel/probes/kprobes.c | 28 ++---
3 files changed, 32
iwei/main_code/linux/kernel/printk/printk.c:2076
2076{
(gdb) stepi
0xffff800010148750 2076{
(gdb)
Fixes: 44679a4f142b ("arm64: KGDB: Add step debugging support")
Signed-off-by: Wei Li
---
arch/arm64/kernel/kgdb.c | 13 +++--
1 file changed, 11 insertions(+), 2 de
2076{
(gdb) stepi
0x800010148750 2076{
(gdb) stepi
2080va_start(args, fmt);
(gdb) stepi
0x800010148758 2080va_start(args, fmt);
(gdb)
Fixes: 44679a4f142b ("arm64: KGDB: Add step debugging support")
Signed-off-by: Wei Li
---
arch/arm
on processor 0 due to SS
trap @ 0x800010082ab8
[0]kdb>
Fixes: 44679a4f142b ("arm64: KGDB: Add step debugging support")
Signed-off-by: Wei Li
---
arch/arm64/kernel/kgdb.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/arch/arm64/kernel/kgdb.c b/arch/arm64/kernel/kgd
[k] 0xc1f738a4
3.08% sleep[unknown] [k] 0xc21a1ef8
3.05% sleep[unknown] [k] 0xc1f7109c
3.02% sleep[unknown] [k] 0xc1f59520
2.99% sleep[unknown] [k] 0xc23f54d4
...
Signed-off-by: Wei Li
---
tools/perf/uti
arch_counter_get_cntvct+16
...
Fixes: 0ea415390cd3 ("clocksource/arm_arch_timer: Use arch_timer_read_counter
to access stable counters")
Signed-off-by: Wei Li
---
drivers/clocksource/arm_arch_timer.c | 10 +-
1 file changed, 5 insertions(+), 5 deletions(-)
diff --git a/drivers/c
eption ]---
Signed-off-by: Wei Li
---
kernel/trace/ftrace.c | 7 +--
1 file changed, 5 insertions(+), 2 deletions(-)
diff --git a/kernel/trace/ftrace.c b/kernel/trace/ftrace.c
index a12aff849c04..7e2488da69ac 100644
--- a/kernel/trace/ftrace.c
+++ b/kernel/trace/ftrace.c
@@ -4221,10 +4221,13 @
il all threads
have been deleted.
This can be reproduced by following steps:
ulimit -c unlimited
export MALLOC_MMAP_THRESHOLD_=0
perf sched record sleep 10
perf sched latency --sort max
Segmentation fault (core dumped)
Signed-off-by: Zhipeng Xie
Signed-off-b
the gic_enable_nmi_support() earlier to make the gic_supports_nmi()
check works in gic_cpu_init().
Signed-off-by: Wei Li
Cc: Julien Thierry
---
arch/arm64/include/asm/smp.h | 2 ++
arch/arm64/kernel/smp.c| 4 +++
drivers/irqchip/irq-gic-v3.c | 46
To support backtracing of other CPUs in the system on lockups, add the
implementation of arch_trigger_cpumask_backtrace() for arm64.
In this patch, we add an arm64 NMI-like IPI based backtracer, referring
to the implementation on arm by Russell King and Chris Metcalf.
Signed-off-by: Wei Li
]
[ 272.195600] kthread+0x100/0x130
[ 272.195638] ret_from_fork+0x10/0x18
Wei Li (3):
arm64: Add pseudo NMI support of GICv3 SGIs
arm64: Add support for on-demand backtrace of other CPUs
arm64: Avoid entering NMI context improperly
arch/arm64/include/asm/arch_gicv3.h| 8
arch
-off-by: Wei Li
---
arch/arm64/include/asm/arch_gicv3.h | 8
arch/arm64/kernel/smp.c | 14 --
drivers/irqchip/irq-gic-v3.c| 8 +---
3 files changed, 21 insertions(+), 9 deletions(-)
diff --git a/arch/arm64/include/asm/arch_gicv3.h
b/arch/arm64
il all threads
have been deleted.
This can be reproduced by following steps:
ulimit -c unlimited
export MALLOC_MMAP_THRESHOLD_=0
perf sched record sleep 10
perf sched latency --sort max
Segmentation fault (core dumped)
Signed-off-by: Zhipeng Xie
Signed-off-b
rq can never be processed and leading to hang.
In this patch, we do the save & restore exactly, and make sure the
arch_irqs_disabled_flags() returns correctly.
Fix: commit 4a503217ce37 ("arm64: irqflags: Use ICC_PMR_EL1 for interrupt
masking")
Signed-off-by: Wei Li
---
ar
Commit-ID: 977c7a6d1e263ff1d755f28595b99e4bc0c48a9f
Gitweb: https://git.kernel.org/tip/977c7a6d1e263ff1d755f28595b99e4bc0c48a9f
Author: Wei Li
AuthorDate: Thu, 28 Feb 2019 17:20:03 +0800
Committer: Arnaldo Carvalho de Melo
CommitDate: Thu, 28 Mar 2019 14:41:21 -0300
perf machine
Signed-off-by: Wei Li
---
drivers/irqchip/irq-gic.c | 22 +++---
1 file changed, 19 insertions(+), 3 deletions(-)
diff --git a/drivers/irqchip/irq-gic.c b/drivers/irqchip/irq-gic.c
index fd3110c171ba..5928c4338b28 100644
--- a/drivers/irqchip/irq-gic.c
+++ b/drivers/irqchip/irq-gic.c
id-list -i perf.data
28a6c690262896dbd1b5e1011ed81623e6db0610 [kernel.kallsyms]
106c14ce6e4acea3453e484dc604d6f08a2f [vdso]
[root@localhost tools]# ./perf/perf buildid-list -i perf.data -H
28a6c690262896dbd1b5e1011ed81623e6db0610 /proc/kcore
Signed-off-by: Wei Li
---
tools/perf/util/machine.c | 32
Commit-ID: 11db1ad4513d6205d2519e1a30ff4cef746e3243
Gitweb: https://git.kernel.org/tip/11db1ad4513d6205d2519e1a30ff4cef746e3243
Author: Wei Li
AuthorDate: Thu, 21 Feb 2019 17:57:16 +0800
Committer: Arnaldo Carvalho de Melo
CommitDate: Thu, 21 Feb 2019 17:00:35 -0300
perf annotate: Fix
ax
common_while_1.c:64.54 : 626: add$0x1,%eax
4.73 : 629: mov%eax,-0x4(%rbp)
common_while_1.c:6 19.54 : 62c: mov-0x4(%rbp),%eax
common_while_1.c:64.54 : 62f: cmp$0xfff,%eax
...
Fixes: 425859ff0de33 ("perf annotate: No need to calculate n
or some issues else:
do_sp_pc_abort <- el0_sp_pc
do_el0_ia_bp_hardening <- el0_ia
kgdb_roundup_cpus <- el1_dbg
Signed-off-by: Wei Li
---
arch/arm64/kernel/kgdb.c | 4
arch/arm64/mm/fault.c| 6 ++
2 files changed, 10 insertions(+)
diff --git a/a
During driver probe procedure, lock on the parent of
platform devices could be removed to make probe in
parallel.
Signed-off-by: Wei Li <we...@codeaurora.org>
---
drivers/base/dd.c | 6 --
1 file changed, 4 insertions(+), 2 deletions(-)
diff --git a/drivers/base/dd.c b/drivers/bas
During driver probe procedure, lock on the parent of
platform devices could be removed to make probe in
parallel.
Signed-off-by: Wei Li
---
drivers/base/dd.c | 6 --
1 file changed, 4 insertions(+), 2 deletions(-)
diff --git a/drivers/base/dd.c b/drivers/base/dd.c
index a1fbf55..e238fbc
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