From: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
To: linux-kernel@vger.kernel.org
Cc: Greg Kroah-Hartman <gregkh@linuxfoundation.org>,
stable@vger.kernel.org, Arnd Bergmann <arnd@arndb.de>,
Anders Roxell <anders.roxell@linaro.org>,
Will Deacon <will.deacon@arm.com>,
Sasha Levin <sashal@kernel.org>
Subject: [PATCH 4.9 10/39] arm64: perf: set suppress_bind_attrs flag to true
Date: Thu, 24 Jan 2019 20:20:13 +0100 [thread overview]
Message-ID: <20190124190448.597139968@linuxfoundation.org> (raw)
In-Reply-To: <20190124190448.232316246@linuxfoundation.org>
4.9-stable review patch. If anyone has any objections, please let me know.
------------------
[ Upstream commit 81e9fa8bab381f8b6eb04df7cdf0f71994099bd4 ]
The armv8_pmuv3 driver doesn't have a remove function, and when the test
'CONFIG_DEBUG_TEST_DRIVER_REMOVE=y' is enabled, the following Call trace
can be seen.
[ 1.424287] Failed to register pmu: armv8_pmuv3, reason -17
[ 1.424870] WARNING: CPU: 0 PID: 1 at ../kernel/events/core.c:11771 perf_event_sysfs_init+0x98/0xdc
[ 1.425220] Modules linked in:
[ 1.425531] CPU: 0 PID: 1 Comm: swapper/0 Tainted: G W 4.19.0-rc7-next-20181012-00003-ge7a97b1ad77b-dirty #35
[ 1.425951] Hardware name: linux,dummy-virt (DT)
[ 1.426212] pstate: 80000005 (Nzcv daif -PAN -UAO)
[ 1.426458] pc : perf_event_sysfs_init+0x98/0xdc
[ 1.426720] lr : perf_event_sysfs_init+0x98/0xdc
[ 1.426908] sp : ffff00000804bd50
[ 1.427077] x29: ffff00000804bd50 x28: ffff00000934e078
[ 1.427429] x27: ffff000009546000 x26: 0000000000000007
[ 1.427757] x25: ffff000009280710 x24: 00000000ffffffef
[ 1.428086] x23: ffff000009408000 x22: 0000000000000000
[ 1.428415] x21: ffff000009136008 x20: ffff000009408730
[ 1.428744] x19: ffff80007b20b400 x18: 000000000000000a
[ 1.429075] x17: 0000000000000000 x16: 0000000000000000
[ 1.429418] x15: 0000000000000400 x14: 2e79726f74636572
[ 1.429748] x13: 696420656d617320 x12: 656874206e692065
[ 1.430060] x11: 6d616e20656d6173 x10: 2065687420687469
[ 1.430335] x9 : ffff00000804bd50 x8 : 206e6f7361657220
[ 1.430610] x7 : 2c3376756d705f38 x6 : ffff00000954d7ce
[ 1.430880] x5 : 0000000000000000 x4 : 0000000000000000
[ 1.431226] x3 : 0000000000000000 x2 : ffffffffffffffff
[ 1.431554] x1 : 4d151327adc50b00 x0 : 0000000000000000
[ 1.431868] Call trace:
[ 1.432102] perf_event_sysfs_init+0x98/0xdc
[ 1.432382] do_one_initcall+0x6c/0x1a8
[ 1.432637] kernel_init_freeable+0x1bc/0x280
[ 1.432905] kernel_init+0x18/0x160
[ 1.433115] ret_from_fork+0x10/0x18
[ 1.433297] ---[ end trace 27fd415390eb9883 ]---
Rework to set suppress_bind_attrs flag to avoid removing the device when
CONFIG_DEBUG_TEST_DRIVER_REMOVE=y, since there's no real reason to
remove the armv8_pmuv3 driver.
Cc: Arnd Bergmann <arnd@arndb.de>
Co-developed-by: Arnd Bergmann <arnd@arndb.de>
Signed-off-by: Anders Roxell <anders.roxell@linaro.org>
Signed-off-by: Will Deacon <will.deacon@arm.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
arch/arm64/kernel/perf_event.c | 1 +
1 file changed, 1 insertion(+)
diff --git a/arch/arm64/kernel/perf_event.c b/arch/arm64/kernel/perf_event.c
index 199a23f058d5..0770d6d1c37f 100644
--- a/arch/arm64/kernel/perf_event.c
+++ b/arch/arm64/kernel/perf_event.c
@@ -1114,6 +1114,7 @@ static struct platform_driver armv8_pmu_driver = {
.driver = {
.name = ARMV8_PMU_PDEV_NAME,
.of_match_table = armv8_pmu_of_device_ids,
+ .suppress_bind_attrs = true,
},
.probe = armv8_pmu_device_probe,
};
--
2.19.1
next prev parent reply other threads:[~2019-01-24 19:29 UTC|newest]
Thread overview: 44+ messages / expand[flat|nested] mbox.gz Atom feed top
2019-01-24 19:20 [PATCH 4.9 00/39] 4.9.153-stable review Greg Kroah-Hartman
2019-01-24 19:20 ` [PATCH 4.9 01/39] r8169: Add support for new Realtek Ethernet Greg Kroah-Hartman
2019-01-24 19:20 ` [PATCH 4.9 02/39] ipv6: Consider sk_bound_dev_if when binding a socket to a v4 mapped address Greg Kroah-Hartman
2019-01-24 19:20 ` [PATCH 4.9 03/39] ipv6: Take rcu_read_lock in __inet6_bind for mapped addresses Greg Kroah-Hartman
2019-01-24 19:20 ` [PATCH 4.9 04/39] platform/x86: asus-wmi: Tell the EC the OS will handle the display off hotkey Greg Kroah-Hartman
2019-01-24 19:20 ` [PATCH 4.9 05/39] e1000e: allow non-monotonic SYSTIM readings Greg Kroah-Hartman
2019-01-24 19:20 ` [PATCH 4.9 06/39] writeback: dont decrement wb->refcnt if !wb->bdi Greg Kroah-Hartman
2019-01-24 19:20 ` [PATCH 4.9 07/39] serial: set suppress_bind_attrs flag only if builtin Greg Kroah-Hartman
2019-01-24 19:20 ` [PATCH 4.9 08/39] ALSA: oxfw: add support for APOGEE duet FireWire Greg Kroah-Hartman
2019-01-24 19:20 ` [PATCH 4.9 09/39] MIPS: SiByte: Enable swiotlb for SWARM, LittleSur and BigSur Greg Kroah-Hartman
2019-01-24 19:20 ` Greg Kroah-Hartman [this message]
2019-01-24 19:20 ` [PATCH 4.9 11/39] selinux: always allow mounting submounts Greg Kroah-Hartman
2019-01-24 19:20 ` [PATCH 4.9 12/39] rxe: IB_WR_REG_MR does not capture MRs iova field Greg Kroah-Hartman
2019-01-24 19:20 ` [PATCH 4.9 13/39] jffs2: Fix use of uninitialized delayed_work, lockdep breakage Greg Kroah-Hartman
2019-01-24 19:20 ` [PATCH 4.9 14/39] pstore/ram: Do not treat empty buffers as valid Greg Kroah-Hartman
2019-01-24 19:20 ` [PATCH 4.9 15/39] powerpc/xmon: Fix invocation inside lock region Greg Kroah-Hartman
2019-01-24 19:20 ` [PATCH 4.9 16/39] powerpc/pseries/cpuidle: Fix preempt warning Greg Kroah-Hartman
2019-01-24 19:20 ` [PATCH 4.9 17/39] media: firewire: Fix app_info parameter type in avc_ca{,_app}_info Greg Kroah-Hartman
2019-01-24 19:20 ` [PATCH 4.9 18/39] net: call sk_dst_reset when set SO_DONTROUTE Greg Kroah-Hartman
2019-01-24 19:20 ` [PATCH 4.9 19/39] scsi: target: use consistent left-aligned ASCII INQUIRY data Greg Kroah-Hartman
2019-01-24 19:20 ` [PATCH 4.9 20/39] clk: imx6q: reset exclusive gates on init Greg Kroah-Hartman
2019-01-24 19:20 ` [PATCH 4.9 21/39] kconfig: fix file name and line number of warn_ignored_character() Greg Kroah-Hartman
2019-01-24 19:20 ` [PATCH 4.9 22/39] kconfig: fix memory leak when EOF is encountered in quotation Greg Kroah-Hartman
2019-01-24 19:20 ` [PATCH 4.9 23/39] mmc: atmel-mci: do not assume idle after atmci_request_end Greg Kroah-Hartman
2019-01-24 19:20 ` [PATCH 4.9 24/39] tty/serial: do not free trasnmit buffer page under port lock Greg Kroah-Hartman
2019-01-24 19:20 ` [PATCH 4.9 25/39] perf intel-pt: Fix error with config term "pt=0" Greg Kroah-Hartman
2019-01-24 19:20 ` [PATCH 4.9 26/39] perf svghelper: Fix unchecked usage of strncpy() Greg Kroah-Hartman
2019-01-24 19:20 ` [PATCH 4.9 27/39] perf parse-events: " Greg Kroah-Hartman
2019-01-24 19:20 ` [PATCH 4.9 28/39] dm kcopyd: Fix bug causing workqueue stalls Greg Kroah-Hartman
2019-01-24 19:20 ` [PATCH 4.9 29/39] tools lib subcmd: Dont add the kernel sources to the include path Greg Kroah-Hartman
2019-01-24 19:20 ` [PATCH 4.9 30/39] dm snapshot: Fix excessive memory usage and workqueue stalls Greg Kroah-Hartman
2019-01-24 19:20 ` [PATCH 4.9 31/39] ALSA: bebob: fix model-id of unit for Apogee Ensemble Greg Kroah-Hartman
2019-01-24 19:20 ` [PATCH 4.9 32/39] sysfs: Disable lockdep for driver bind/unbind files Greg Kroah-Hartman
2019-01-24 19:20 ` [PATCH 4.9 33/39] scsi: smartpqi: correct lun reset issues Greg Kroah-Hartman
2019-01-24 19:20 ` [PATCH 4.9 34/39] scsi: megaraid: fix out-of-bound array accesses Greg Kroah-Hartman
2019-01-24 19:20 ` [PATCH 4.9 35/39] ocfs2: fix panic due to unrecovered local alloc Greg Kroah-Hartman
2019-01-24 19:20 ` [PATCH 4.9 36/39] mm/page-writeback.c: dont break integrity writeback on ->writepage() error Greg Kroah-Hartman
2019-01-24 19:20 ` [PATCH 4.9 37/39] mm, proc: be more verbose about unstable VMA flags in /proc/<pid>/smaps Greg Kroah-Hartman
2019-01-24 19:20 ` [PATCH 4.9 38/39] ipmi:ssif: Fix handling of multi-part return messages Greg Kroah-Hartman
2019-01-24 19:20 ` [PATCH 4.9 39/39] locking/qspinlock: Pull in asm/byteorder.h to ensure correct endianness Greg Kroah-Hartman
2019-01-25 14:43 ` [PATCH 4.9 00/39] 4.9.153-stable review shuah
2019-01-25 16:28 ` Naresh Kamboju
2019-01-25 23:17 ` Guenter Roeck
2019-01-26 12:07 ` Jon Hunter
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