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authorOmar Sandoval <osandov@fb.com>2018-11-12 00:08:46 -0800
committerJens Axboe <axboe@kernel.dk>2018-11-12 08:28:37 -0700
commit18e962ac0781bcb70d433de3b2a325ff792b4288 (patch)
tree08a29ea40815efa2d7504cb12f89cec1ec77cf54 /include/trace/events/kyber.h
parentde7b75d82f70c5469675b99ad632983c50b6f7e7 (diff)
downloadlinux-18e962ac0781bcb70d433de3b2a325ff792b4288.tar.bz2
kyber: fix wrong strlcpy() size in trace_kyber_latency()
When copying to the latency type, we should be passing LATENCY_TYPE_LEN, not DOMAIN_LEN (this isn't a problem in practice because we only pass "total" or "I/O"). Fix it by changing all of the strlcpy() calls to use sizeof(). Fixes: 6c3b7af1c975 ("kyber: add tracepoints") Reported-by: Jordan Glover <Golden_Miller83@protonmail.ch> Tested-by: Jordan Glover <Golden_Miller83@protonmail.ch> Signed-off-by: Omar Sandoval <osandov@fb.com> Signed-off-by: Jens Axboe <axboe@kernel.dk>
Diffstat (limited to 'include/trace/events/kyber.h')
-rw-r--r--include/trace/events/kyber.h8
1 files changed, 4 insertions, 4 deletions
diff --git a/include/trace/events/kyber.h b/include/trace/events/kyber.h
index a9834c37ac40..c0e7d24ca256 100644
--- a/include/trace/events/kyber.h
+++ b/include/trace/events/kyber.h
@@ -31,8 +31,8 @@ TRACE_EVENT(kyber_latency,
TP_fast_assign(
__entry->dev = disk_devt(dev_to_disk(kobj_to_dev(q->kobj.parent)));
- strlcpy(__entry->domain, domain, DOMAIN_LEN);
- strlcpy(__entry->type, type, DOMAIN_LEN);
+ strlcpy(__entry->domain, domain, sizeof(__entry->domain));
+ strlcpy(__entry->type, type, sizeof(__entry->type));
__entry->percentile = percentile;
__entry->numerator = numerator;
__entry->denominator = denominator;
@@ -60,7 +60,7 @@ TRACE_EVENT(kyber_adjust,
TP_fast_assign(
__entry->dev = disk_devt(dev_to_disk(kobj_to_dev(q->kobj.parent)));
- strlcpy(__entry->domain, domain, DOMAIN_LEN);
+ strlcpy(__entry->domain, domain, sizeof(__entry->domain));
__entry->depth = depth;
),
@@ -82,7 +82,7 @@ TRACE_EVENT(kyber_throttled,
TP_fast_assign(
__entry->dev = disk_devt(dev_to_disk(kobj_to_dev(q->kobj.parent)));
- strlcpy(__entry->domain, domain, DOMAIN_LEN);
+ strlcpy(__entry->domain, domain, sizeof(__entry->domain));
),
TP_printk("%d,%d %s", MAJOR(__entry->dev), MINOR(__entry->dev),