Messages in this thread Patch in this message |  | | From | Greg Kroah-Hartman <> | Subject | [PATCH 5.10 178/599] perf/x86/intel/pt: Fix address filter config for 32-bit kernel | Date | Tue, 5 Apr 2022 09:27:52 +0200 |
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From: Adrian Hunter <adrian.hunter@intel.com>
[ Upstream commit e5524bf1047eb3b3f3f33b5f59897ba67b3ade87 ]
Change from shifting 'unsigned long' to 'u64' to prevent the config bits being lost on a 32-bit kernel.
Fixes: eadf48cab4b6b0 ("perf/x86/intel/pt: Add support for address range filtering in PT") Signed-off-by: Adrian Hunter <adrian.hunter@intel.com> Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org> Link: https://lore.kernel.org/r/20220131072453.2839535-5-adrian.hunter@intel.com Signed-off-by: Sasha Levin <sashal@kernel.org> --- arch/x86/events/intel/pt.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/arch/x86/events/intel/pt.c b/arch/x86/events/intel/pt.c index c084899e9582..cc3b79c06685 100644 --- a/arch/x86/events/intel/pt.c +++ b/arch/x86/events/intel/pt.c @@ -472,7 +472,7 @@ static u64 pt_config_filters(struct perf_event *event) pt->filters.filter[range].msr_b = filter->msr_b; } - rtit_ctl |= filter->config << pt_address_ranges[range].reg_off; + rtit_ctl |= (u64)filter->config << pt_address_ranges[range].reg_off; } return rtit_ctl; -- 2.34.1
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