This is a note to let you know that I've just added the patch titled
coresight-etm4: Fix for() loop drvdata->nr_addr_cmp range bug
to the 5.15-stable tree which can be found at:
http://www.kernel.org/git/?p=linux/kernel/git/stable/stable-queue.git;a=summary
The filename of the patch is:
coresight-etm4-fix-for-loop-drvdata-nr_addr_cmp-range-bug.patch
and it can be found in the queue-5.15 subdirectory.
If you, or anyone else, feels it should not be added to the stable tree,
please let <stable@xxxxxxxxxxxxxxx> know about it.
>From bf84937e882009075f57fd213836256fc65d96bc Mon Sep 17 00:00:00 2001
From: Steve Clevenger <scclevenger@xxxxxxxxxxxxxxxxxxxxxx>
Date: Mon, 27 Feb 2023 16:54:32 -0700
Subject: coresight-etm4: Fix for() loop drvdata->nr_addr_cmp range bug
From: Steve Clevenger <scclevenger@xxxxxxxxxxxxxxxxxxxxxx>
commit bf84937e882009075f57fd213836256fc65d96bc upstream.
In etm4_enable_hw, fix for() loop range to represent address comparator pairs.
Fixes: 2e1cdfe184b5 ("coresight-etm4x: Adding CoreSight ETM4x driver")
Cc: stable@xxxxxxxxxxxxxxx
Signed-off-by: Steve Clevenger <scclevenger@xxxxxxxxxxxxxxxxxxxxxx>
Reviewed-by: James Clark <james.clark@xxxxxxx>
Signed-off-by: Suzuki K Poulose <suzuki.poulose@xxxxxxx>
Link: https://lore.kernel.org/r/4a4ee61ce8ef402615a4528b21a051de3444fb7b.1677540079.git.scclevenger@xxxxxxxxxxxxxxxxxxxxxx
Signed-off-by: Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx>
---
drivers/hwtracing/coresight/coresight-etm4x-core.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
--- a/drivers/hwtracing/coresight/coresight-etm4x-core.c
+++ b/drivers/hwtracing/coresight/coresight-etm4x-core.c
@@ -411,7 +411,7 @@ static int etm4_enable_hw(struct etmv4_d
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));
}
Patches currently in stable-queue which might be from scclevenger@xxxxxxxxxxxxxxxxxxxxxx are
queue-5.15/coresight-etm4-fix-for-loop-drvdata-nr_addr_cmp-range-bug.patch
queue-5.15/coresight-etm4x-do-not-access-trcidr1-for-identification.patch
