lists.openwall.net   lists  /  announce  owl-users  owl-dev  john-users  john-dev  passwdqc-users  yescrypt  popa3d-users  /  oss-security  kernel-hardening  musl  sabotage  tlsify  passwords  /  crypt-dev  xvendor  /  Bugtraq  Full-Disclosure  linux-kernel  linux-netdev  linux-ext4  linux-hardening  linux-cve-announce  PHC 
Open Source and information security mailing list archives
 
Hash Suite: Windows password security audit tool. GUI, reports in PDF.
[<prev] [next>] [<thread-prev] [thread-next>] [day] [month] [year] [list]
Message-Id: <20240304183525.3222581-10-irogers@google.com>
Date: Mon,  4 Mar 2024 10:35:20 -0800
From: Ian Rogers <irogers@...gle.com>
To: Peter Zijlstra <peterz@...radead.org>, Ingo Molnar <mingo@...hat.com>, 
	Arnaldo Carvalho de Melo <acme@...nel.org>, Namhyung Kim <namhyung@...nel.org>, 
	Mark Rutland <mark.rutland@....com>, 
	Alexander Shishkin <alexander.shishkin@...ux.intel.com>, Jiri Olsa <jolsa@...nel.org>, 
	Ian Rogers <irogers@...gle.com>, Adrian Hunter <adrian.hunter@...el.com>, 
	James Clark <james.clark@....com>, Athira Rajeev <atrajeev@...ux.vnet.ibm.com>, 
	Colin Ian King <colin.i.king@...il.com>, 
	"Ahelenia ZiemiaƄska" <nabijaczleweli@...ijaczleweli.xyz>, Leo Yan <leo.yan@...aro.org>, 
	Song Liu <song@...nel.org>, Miguel Ojeda <ojeda@...nel.org>, 
	Liam Howlett <liam.howlett@...cle.com>, Ilkka Koskinen <ilkka@...amperecomputing.com>, 
	Ben Gainey <ben.gainey@....com>, K Prateek Nayak <kprateek.nayak@....com>, 
	Kan Liang <kan.liang@...ux.intel.com>, German Gomez <german.gomez@....com>, 
	Sun Haiyong <sunhaiyong@...ngson.cn>, Changbin Du <changbin.du@...wei.com>, 
	Masami Hiramatsu <mhiramat@...nel.org>, zhaimingbing <zhaimingbing@...s.chinamobile.com>, 
	Paran Lee <p4ranlee@...il.com>, Li Dong <lidong@...o.com>, linux-perf-users@...r.kernel.org, 
	linux-kernel@...r.kernel.org
Subject: [PATCH v1 09/13] perf dsos: Remove __dsos__findnew_link_by_longname_id

Function was only called in dsos.c with the dso parameter as
NULL. Remove the function and specialize for the dso being NULL case
removing other unused functions along the way.

Signed-off-by: Ian Rogers <irogers@...gle.com>
---
 tools/perf/util/dsos.c | 51 +++++++++---------------------------------
 tools/perf/util/dsos.h |  6 -----
 2 files changed, 10 insertions(+), 47 deletions(-)

diff --git a/tools/perf/util/dsos.c b/tools/perf/util/dsos.c
index 1495ab1cd7a0..e4110438841b 100644
--- a/tools/perf/util/dsos.c
+++ b/tools/perf/util/dsos.c
@@ -119,11 +119,6 @@ static int __dso__cmp_short_name(const char *short_name, struct dso_id *id, stru
 	return rc ?: dso_id__cmp(id, &b->id);
 }
 
-static int dso__cmp_short_name(struct dso *a, struct dso *b)
-{
-	return __dso__cmp_short_name(a->short_name, &a->id, b);
-}
-
 static int dsos__cmp_long_name_id_short_name(const void *va, const void *vb)
 {
 	const struct dso *a = *((const struct dso **)va);
@@ -143,20 +138,21 @@ static int dsos__cmp_long_name_id_short_name(const void *va, const void *vb)
  * Either one of the dso or name parameter must be non-NULL or the
  * function will not work.
  */
-struct dso *__dsos__findnew_link_by_longname_id(struct dsos *dsos,
-						struct dso *dso,
-						const char *name,
-						struct dso_id *id,
-						bool write_locked)
+static struct dso *__dsos__find_by_longname_id(struct dsos *dsos,
+					       const char *name,
+					       struct dso_id *id,
+					       bool write_locked)
 {
 	int low = 0, high = dsos->cnt - 1;
 
 	if (!dsos->sorted) {
 		if (!write_locked) {
+			struct dso *dso;
+
 			up_read(&dsos->lock);
 			down_write(&dsos->lock);
-			dso = __dsos__findnew_link_by_longname_id(dsos, dso, name, id,
-								  /*write_locked=*/true);
+			dso = __dsos__find_by_longname_id(dsos, name, id,
+							  /*write_locked=*/true);
 			up_write(&dsos->lock);
 			down_read(&dsos->lock);
 			return dso;
@@ -166,9 +162,6 @@ struct dso *__dsos__findnew_link_by_longname_id(struct dsos *dsos,
 		dsos->sorted = true;
 	}
 
-	if (!name)
-		name = dso->long_name;
-
 	/*
 	 * Find node with the matching name
 	 */
@@ -178,31 +171,13 @@ struct dso *__dsos__findnew_link_by_longname_id(struct dsos *dsos,
 		int rc = __dso__cmp_long_name(name, id, this);
 
 		if (rc == 0) {
-			/*
-			 * In case the new DSO is a duplicate of an existing
-			 * one, print a one-time warning & put the new entry
-			 * at the end of the list of duplicates.
-			 */
-			if (!dso || (dso == this))
-				return dso__get(this);	/* Find matching dso */
-			/*
-			 * The core kernel DSOs may have duplicated long name.
-			 * In this case, the short name should be different.
-			 * Comparing the short names to differentiate the DSOs.
-			 */
-			rc = dso__cmp_short_name(dso, this);
-			if (rc == 0) {
-				pr_err("Duplicated dso name: %s\n", name);
-				return NULL;
-			}
+			return dso__get(this);	/* Find matching dso */
 		}
 		if (rc < 0)
 			high = mid - 1;
 		else
 			low = mid + 1;
 	}
-	if (dso)
-		__dsos__add(dsos, dso);
 	return NULL;
 }
 
@@ -240,12 +215,6 @@ int dsos__add(struct dsos *dsos, struct dso *dso)
 	return ret;
 }
 
-static struct dso *__dsos__findnew_by_longname_id(struct dsos *dsos, const char *name,
-						struct dso_id *id, bool write_locked)
-{
-	return __dsos__findnew_link_by_longname_id(dsos, NULL, name, id, write_locked);
-}
-
 struct dsos__find_id_cb_args {
 	const char *name;
 	struct dso_id *id;
@@ -279,7 +248,7 @@ static struct dso *__dsos__find_id(struct dsos *dsos, const char *name, struct d
 		__dsos__for_each_dso(dsos, dsos__find_id_cb, &args);
 		return args.res;
 	}
-	res = __dsos__findnew_by_longname_id(dsos, name, id, write_locked);
+	res = __dsos__find_by_longname_id(dsos, name, id, write_locked);
 	return res;
 }
 
diff --git a/tools/perf/util/dsos.h b/tools/perf/util/dsos.h
index d1497b11d64c..6c13b65648bc 100644
--- a/tools/perf/util/dsos.h
+++ b/tools/perf/util/dsos.h
@@ -36,12 +36,6 @@ struct dso *dsos__findnew_id(struct dsos *dsos, const char *name, struct dso_id
  
 bool dsos__read_build_ids(struct dsos *dsos, bool with_hits);
 
-struct dso *__dsos__findnew_link_by_longname_id(struct dsos *dsos,
-						struct dso *dso,
-						const char *name,
-						struct dso_id *id,
-						bool write_locked);
-
 size_t dsos__fprintf_buildid(struct dsos *dsos, FILE *fp,
 			       bool (skip)(struct dso *dso, int parm), int parm);
 size_t dsos__fprintf(struct dsos *dsos, FILE *fp);
-- 
2.44.0.278.ge034bb2e1d-goog


Powered by blists - more mailing lists

Powered by Openwall GNU/*/Linux Powered by OpenVZ