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Sat, 02 May 2026 14:13:20 +0000 (GMT) Received: from smtpav01.fra02v.mail.ibm.com (smtpav01.fra02v.mail.ibm.com [10.20.54.100]) by smtprelay06.fra02v.mail.ibm.com (8.14.9/8.14.9/NCO v10.0) with ESMTP id 642EDGGJ31785306 (version=TLSv1/SSLv3 cipher=DHE-RSA-AES256-GCM-SHA384 bits=256 verify=OK); Sat, 2 May 2026 14:13:16 GMT Received: from smtpav01.fra02v.mail.ibm.com (unknown [127.0.0.1]) by IMSVA (Postfix) with ESMTP id 155BA20043; Sat, 2 May 2026 14:13:16 +0000 (GMT) Received: from smtpav01.fra02v.mail.ibm.com (unknown [127.0.0.1]) by IMSVA (Postfix) with ESMTP id CEB7320040; Sat, 2 May 2026 14:13:10 +0000 (GMT) Received: from localhost.localdomain (unknown [9.124.223.37]) by smtpav01.fra02v.mail.ibm.com (Postfix) with ESMTP; Sat, 2 May 2026 14:13:10 +0000 (GMT) From: Athira Rajeev To: acme@kernel.org, jolsa@kernel.org, adrian.hunter@intel.com, mpetlan@redhat.com, tmricht@linux.ibm.com, maddy@linux.ibm.com, irogers@google.com, namhyung@kernel.org Cc: linux-perf-users@vger.kernel.org, linuxppc-dev@lists.ozlabs.org, atrajeev@linux.ibm.com, hbathini@linux.vnet.ibm.com, Tejas.Manhas1@ibm.com, Tanushree.Shah@ibm.com, shivani@linux.ibm.com Subject: [PATCH V3 1/2] tools/perf: Fix the check for parameterized field in event term Date: Sat, 2 May 2026 19:42:57 +0530 Message-Id: <20260502141258.17128-1-atrajeev@linux.ibm.com> X-Mailer: git-send-email 2.39.5 (Apple Git-154) X-Mailing-List: linuxppc-dev@lists.ozlabs.org List-Id: List-Help: List-Owner: List-Post: List-Archive: , List-Subscribe: , , List-Unsubscribe: Precedence: list MIME-Version: 1.0 Content-Transfer-Encoding: 8bit X-TM-AS-GCONF: 00 X-Proofpoint-Reinject: loops=2 maxloops=12 X-Proofpoint-ORIG-GUID: Dd5NJWAcZdTcg9JcDuyXVWXmel297htt X-Proofpoint-GUID: v3b8Wpc3F7E56A3wawAnh1eCXMBYpARW X-Proofpoint-Spam-Details-Enc: AW1haW4tMjYwNTAyMDE0MSBTYWx0ZWRfX9rLyTNIXt5pI YV6pYYakdONQ43gaObDL2T5QOBUJ90azDIIz0H7MYRzc78S7JNPgqFe5I7tEWK6Dgs8wgRMFdG8 hsSrj41O2rAfdYu2axgRQfnVn2W8oqSMxFmhvWIS1ZWjrrGbAX86Q3Nt0waXPQnQx/mnHYAbVj/ OV/ewH/Q7cR0uoDY2ODZp1yblya0VGLWPDxjqvPcDrzkStFQ048uNORMLnsm1TqoXvXKMEH8dv4 LK5K4a0EwhcXuW6lZEEvmvWoawciPA/CAqU5tKih3l8/aUCGVe8xt/f6hgVfMxCTe53Dc4+a+Of YdIEjDpo073gMmYqGd00iam4CVB/BpiP8axCkU44FmadWcR/v5yHroMX50ykd9mxFfdpkDUBHbx 7djav89PHIPMEUUPzI9vUUwYkC05/BgpOtBd3S1Qop4pjgFT2tXdHf+h58OsSNGQMYywmMFysEn EC2GHZc4Z9JrpcqU8Mg== X-Authority-Analysis: v=2.4 cv=UbFhjqSN c=1 sm=1 tr=0 ts=69f60681 cx=c_pps a=GFwsV6G8L6GxiO2Y/PsHdQ==:117 a=GFwsV6G8L6GxiO2Y/PsHdQ==:17 a=KlCRr-_lrQmZq1rU:21 a=NGcC8JguVDcA:10 a=VkNPw1HP01LnGYTKEx00:22 a=RnoormkPH1_aCDwRdu11:22 a=U7nrCbtTmkRpXpFmAIza:22 a=VnNF1IyMAAAA:8 a=g2m9RzfYH6J901Z4KtUA:9 X-Proofpoint-Virus-Version: vendor=baseguard engine=ICAP:2.0.293,Aquarius:18.0.1143,Hydra:6.1.51,FMLib:17.12.100.49 definitions=2026-05-02_03,2026-04-30_02,2025-10-01_01 X-Proofpoint-Spam-Details: rule=outbound_notspam policy=outbound score=0 clxscore=1015 spamscore=0 lowpriorityscore=0 malwarescore=0 suspectscore=0 adultscore=0 priorityscore=1501 bulkscore=0 phishscore=0 impostorscore=0 classifier=typeunknown authscore=0 authtc= authcc= route=outbound adjust=0 reason=mlx scancount=1 engine=8.22.0-2604200000 definitions=main-2605020141 The format_alias() function in util/pmu.c has a check to detect whether the event has parameterized field ( =? ). The string alias->terms contains the event and if the event has user configurable parameter, there will be presence of sub string "=?" in the alias->terms. Snippet of code: /* Paramemterized events have the parameters shown. */ if (strstr(alias->terms, "=?")) { /* No parameters. */ snprintf(buf, len, "%.*s/%s/", (int)pmu_name_len, pmu->name, alias->name); if "strstr" contains the substring, it returns a pointer and hence enters the above check which is not the expected check. And hence "perf list" doesn't have the parameterized fields in the result. Fix this check to use: if (!strstr(alias->terms, "=?")) { With this change, perf list shows the events correctly with the strings showing parameters. Signed-off-by: Athira Rajeev --- Changelog: v2 -> v3: Split the strstr correction in a single patch tools/perf/util/pmu.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/tools/perf/util/pmu.c b/tools/perf/util/pmu.c index 23337d2fa281..0b8d58543f17 100644 --- a/tools/perf/util/pmu.c +++ b/tools/perf/util/pmu.c @@ -2117,7 +2117,7 @@ static char *format_alias(char *buf, int len, const struct perf_pmu *pmu, skip_duplicate_pmus); /* Paramemterized events have the parameters shown. */ - if (strstr(alias->terms, "=?")) { + if (!strstr(alias->terms, "=?")) { /* No parameters. */ snprintf(buf, len, "%.*s/%s/", (int)pmu_name_len, pmu->name, alias->name); return buf; -- 2.47.3