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authorSebastian Andrzej Siewior <bigeasy@linutronix.de>2021-11-08 18:35:31 -0800
committerLinus Torvalds <torvalds@linux-foundation.org>2021-11-09 10:02:52 -0800
commit6f1d34bd491c1bd0ac23100347e81080a2ec209d (patch)
treea5fc0032f1f508b8df4e2e587dfd122b35cfdfa1 /Documentation
parentd687a9ccf2648c38a6a7097371d94cd1bb1414af (diff)
Documentation/kcov: define `ip' in the example
The example code uses the variable `ip' but never declares it. Declare `ip' as a 64bit variable which is the same type as the array from which it loads its value. Link: https://lkml.kernel.org/r/20210923164741.1859522-3-bigeasy@linutronix.de Link: https://lore.kernel.org/r/20210830172627.267989-3-bigeasy@linutronix.de Signed-off-by: Sebastian Andrzej Siewior <bigeasy@linutronix.de> Acked-by: Dmitry Vyukov <dvyukov@google.com> Acked-by: Marco Elver <elver@google.com> Tested-by: Marco Elver <elver@google.com> Reviewed-by: Andrey Konovalov <andreyknvl@gmail.com> Cc: Clark Williams <williams@redhat.com> Cc: Steven Rostedt <rostedt@goodmis.org> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Diffstat (limited to 'Documentation')
-rw-r--r--Documentation/dev-tools/kcov.rst2
1 files changed, 2 insertions, 0 deletions
diff --git a/Documentation/dev-tools/kcov.rst b/Documentation/dev-tools/kcov.rst
index 347f3b6de8d4..d83c9ab49427 100644
--- a/Documentation/dev-tools/kcov.rst
+++ b/Documentation/dev-tools/kcov.rst
@@ -178,6 +178,8 @@ Comparison operands collection is similar to coverage collection:
/* Read number of comparisons collected. */
n = __atomic_load_n(&cover[0], __ATOMIC_RELAXED);
for (i = 0; i < n; i++) {
+ uint64_t ip;
+
type = cover[i * KCOV_WORDS_PER_CMP + 1];
/* arg1 and arg2 - operands of the comparison. */
arg1 = cover[i * KCOV_WORDS_PER_CMP + 2];