This is a note to let you know that I've just added the patch titled
perf symbols: Fix dso__fprintf_symbols_by_name() to return the number of printed chars
to the 5.10-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:
perf-symbols-fix-dso__fprintf_symbols_by_name-to-ret.patch
and it can be found in the queue-5.10 subdirectory.
If you, or anyone else, feels it should not be added to the stable tree,
please let <stable@xxxxxxxxxxxxxxx> know about it.
commit fac1699d123dcdec0262239e6a8acd17aafef0f8
Author: Arnaldo Carvalho de Melo <acme@xxxxxxxxxx>
Date: Mon Mar 8 11:17:51 2021 -0300
perf symbols: Fix dso__fprintf_symbols_by_name() to return the number of printed chars
[ Upstream commit 210e4c89ef61432040c6cd828fefa441f4887186 ]
The 'ret' variable was initialized to zero but then it was not updated
from the fprintf() return, fix it.
Reported-by: Yang Li <yang.lee@xxxxxxxxxxxxxxxxx>
cc: Alexander Shishkin <alexander.shishkin@xxxxxxxxxxxxxxx>
cc: Ingo Molnar <mingo@xxxxxxxxxx>
cc: Jiri Olsa <jolsa@xxxxxxxxxx>
cc: Mark Rutland <mark.rutland@xxxxxxx>
cc: Namhyung Kim <namhyung@xxxxxxxxxx>
Cc: Peter Zijlstra <peterz@xxxxxxxxxxxxx>
Cc: Srikar Dronamraju <srikar@xxxxxxxxxxxxxxxxxx>
Fixes: 90f18e63fbd00513 ("perf symbols: List symbols in a dso in ascending name order")
Signed-off-by: Arnaldo Carvalho de Melo <acme@xxxxxxxxxx>
Signed-off-by: Sasha Levin <sashal@xxxxxxxxxx>
diff --git a/tools/perf/util/symbol_fprintf.c b/tools/perf/util/symbol_fprintf.c
index 35c936ce33ef..2664fb65e47a 100644
--- a/tools/perf/util/symbol_fprintf.c
+++ b/tools/perf/util/symbol_fprintf.c
@@ -68,7 +68,7 @@ size_t dso__fprintf_symbols_by_name(struct dso *dso,
for (nd = rb_first_cached(&dso->symbol_names); nd; nd = rb_next(nd)) {
pos = rb_entry(nd, struct symbol_name_rb_node, rb_node);
- fprintf(fp, "%s\n", pos->sym.name);
+ ret += fprintf(fp, "%s\n", pos->sym.name);
}
return ret;
