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coresight-etm4: Fix for() loop drvdata->nr_addr_cmp range bug 

commit bf84937e88 upstream.

In etm4_enable_hw, fix for() loop range to represent address comparator pairs.

Fixes: 2e1cdfe184 ("coresight-etm4x: Adding CoreSight ETM4x driver")
Cc: stable@vger.kernel.org
Signed-off-by: Steve Clevenger <scclevenger@os.amperecomputing.com>
Reviewed-by: James Clark <james.clark@arm.com>
Signed-off-by: Suzuki K Poulose <suzuki.poulose@arm.com>
Link: https://lore.kernel.org/r/4a4ee61ce8ef402615a4528b21a051de3444fb7b.1677540079.git.scclevenger@os.amperecomputing.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This commit is contained in:
Steve Clevenger 2023-02-27 16:54:32 -07:00 committed by Greg Kroah-Hartman
parent 13ec3c238f
commit e3d2f71fbf
1 changed files with 1 additions and 1 deletions
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2
drivers/hwtracing/coresight/coresight-etm4x-core.c
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@ -451,7 +451,7 @@ static int etm4_enable_hw(struct etmv4_drvdata *drvdata)
if (etm4x_sspcicrn_present(drvdata, i))
etm4x_relaxed_write32(csa, config->ss_pe_cmp[i], TRCSSPCICRn(i));
}
for (i = 0; i < drvdata->nr_addr_cmp; i++) {
for (i = 0; i < drvdata->nr_addr_cmp * 2; i++) {
etm4x_relaxed_write64(csa, config->addr_val[i], TRCACVRn(i));
etm4x_relaxed_write64(csa, config->addr_acc[i], TRCACATRn(i));
}