From: Daniel Axtens <dja@axtens.net>
To: Anshuman Khandual <khandual@linux.vnet.ibm.com>
Cc: linuxppc-dev@ozlabs.org, mpe@ellerman.id.au,
sukadev@linux.vnet.ibm.com, mikey@neuling.org
Subject: Re: [PATCH V9 04/13] powerpc, perf: Restore privilege level filter support for BHRB
Date: Thu, 25 Jun 2015 15:02:14 +1000 [thread overview]
Message-ID: <1435208534.4286.25.camel@axtens.net> (raw)
In-Reply-To: <1434370268-19056-5-git-send-email-khandual@linux.vnet.ibm.com>
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> diff --git a/arch/powerpc/perf/core-book3s.c b/arch/powerpc/perf/core-book3s.c
> index 7a03cce..892340e 100644
> --- a/arch/powerpc/perf/core-book3s.c
> +++ b/arch/powerpc/perf/core-book3s.c
> @@ -930,7 +930,7 @@ static int power_check_constraints(struct cpu_hw_events *cpuhw,
> * added events.
> */
> static int check_excludes(struct perf_event **ctrs, unsigned int cflags[],
> - int n_prev, int n_new)
> + int n_prev, int n_new, int bhrb_users)
Shouldn't this be an unsigned int too?
> - if (ppmu->flags & PPMU_ARCH_207S)
> + if ((ppmu->flags & PPMU_ARCH_207S) && !bhrb_users)
This is now different to the others. Now that bhrb_users is unsigned,
I'm happy if you want to revert all of them to be like this, I was just
concerned that if bhrb_users is an int, both 1 and -1 evaluate to true
and I wasn't sure that was the desired behaviour.
--
Regards,
Daniel
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next prev parent reply other threads:[~2015-06-25 5:03 UTC|newest]
Thread overview: 24+ messages / expand[flat|nested] mbox.gz Atom feed top
2015-06-15 12:10 [PATCH V9 00/13] powerpc, perf: Enable SW branch filters Anshuman Khandual
2015-06-15 12:10 ` [PATCH V9 01/13] powerpc, perf: Drop the branch sample when 'from' cannot be fetched Anshuman Khandual
2015-06-15 12:10 ` [PATCH V9 02/13] powerpc, perf: Change type of the bhrb_users variable Anshuman Khandual
2015-06-25 5:42 ` Daniel Axtens
2015-06-25 12:51 ` Anshuman Khandual
2015-06-15 12:10 ` [PATCH V9 03/13] powerpc, perf: Replace last usage of get_cpu_var with this_cpu_ptr Anshuman Khandual
2015-06-15 12:10 ` [PATCH V9 04/13] powerpc, perf: Restore privilege level filter support for BHRB Anshuman Khandual
2015-06-25 5:02 ` Daniel Axtens [this message]
2015-06-25 12:51 ` Anshuman Khandual
2015-06-15 12:11 ` [PATCH V9 05/13] powerpc, perf: Change name & type of 'pred' in power_pmu_bhrb_read Anshuman Khandual
2015-06-25 5:11 ` Daniel Axtens
2015-06-25 12:52 ` Anshuman Khandual
2015-06-15 12:11 ` [PATCH V9 06/13] powerpc, perf: Re organize BHRB processing Anshuman Khandual
2015-06-25 5:52 ` Daniel Axtens
2015-06-25 12:52 ` Anshuman Khandual
2015-06-15 12:11 ` [PATCH V9 07/13] powerpc, perf: Re organize PMU branch filter processing on POWER8 Anshuman Khandual
2015-06-15 12:11 ` [PATCH V9 08/13] powerpc, perf: Change the name of HW PMU branch filter tracking variable Anshuman Khandual
2015-06-15 12:11 ` [PATCH V9 09/13] powerpc, lib: Add new branch analysis support functions Anshuman Khandual
2015-06-15 12:11 ` [PATCH V9 10/13] powerpc, perf: Enable SW filtering in branch stack sampling framework Anshuman Khandual
2015-06-15 12:11 ` [PATCH V9 11/13] powerpc, perf: Change POWER8 PMU configuration to work with SW filters Anshuman Khandual
2015-06-15 12:11 ` [PATCH V9 12/13] powerpc, perf: Enable privilege mode SW branch filters Anshuman Khandual
2015-06-15 12:11 ` [PATCH V9 13/13] selftests, powerpc: Add test for BHRB branch filters (HW & SW) Anshuman Khandual
2015-06-25 6:18 ` [PATCH V9 00/13] powerpc, perf: Enable SW branch filters Daniel Axtens
2015-06-25 12:50 ` Anshuman Khandual
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