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| author | Will Deacon <will@kernel.org> | 2020-12-04 12:19:35 +0300 |
|---|---|---|
| committer | Will Deacon <will@kernel.org> | 2020-12-04 12:26:37 +0300 |
| commit | ce4b2c01781a24b0a04845f683feea44ade70503 (patch) | |
| tree | 45f15991a09350f99746fcb0156f0bacffe4e2f0 | |
| parent | 367c820ef08082e68df8a3bc12e62393af21e4b5 (diff) | |
| download | linux-ce4b2c01781a24b0a04845f683feea44ade70503.tar.xz | |
arm64: Fix build failure when HARDLOCKUP_DETECTOR_PERF is enabled
If HARDLOCKUP_DETECTOR_PERF is selected but HW_PERF_EVENTS is not, then
the associated watchdog driver will fail to link:
| aarch64-linux-ld: Unexpected GOT/PLT entries detected!
| aarch64-linux-ld: Unexpected run-time procedure linkages detected!
| aarch64-linux-ld: kernel/watchdog_hld.o: in function `hardlockup_detector_event_create':
| >> watchdog_hld.c:(.text+0x68): undefined reference to `hw_nmi_get_sample_period
Change the Kconfig dependencies so that HAVE_PERF_EVENTS_NMI requires
the hardware PMU driver to be enabled, ensuring that the required
symbols are present.
Cc: Sumit Garg <sumit.garg@linaro.org>
Reported-by: kernel test robot <lkp@intel.com>
Link: https://lore.kernel.org/r/202012031509.4O5ZoWNI-lkp@intel.com
Fixes: 367c820ef080 ("arm64: Enable perf events based hard lockup detector")
Signed-off-by: Will Deacon <will@kernel.org>
| -rw-r--r-- | arch/arm64/Kconfig | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/arch/arm64/Kconfig b/arch/arm64/Kconfig index 7d3440770b14..fe0d30a749b6 100644 --- a/arch/arm64/Kconfig +++ b/arch/arm64/Kconfig @@ -170,7 +170,7 @@ config ARM64 select HAVE_NMI select HAVE_PATA_PLATFORM select HAVE_PERF_EVENTS - select HAVE_PERF_EVENTS_NMI if ARM64_PSEUDO_NMI + select HAVE_PERF_EVENTS_NMI if ARM64_PSEUDO_NMI && HW_PERF_EVENTS select HAVE_HARDLOCKUP_DETECTOR_PERF if PERF_EVENTS && HAVE_PERF_EVENTS_NMI select HAVE_PERF_REGS select HAVE_PERF_USER_STACK_DUMP |