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    Subject[PATCH 5.15 252/913] perf/x86/intel/pt: Fix address filter config for 32-bit kernel
    Date
    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 2d33bba9a144..215aed65e978 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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