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Wed, 9 Sep 2026 09:30:05 +0000 (GMT) Received: by tuxmaker.boeblingen.de.ibm.com (Postfix, from userid 55390) id 059DC160DFE; Wed, 09 Sep 2026 11:30:05 +0200 (CEST) From: Sven Schnelle To: Steven Rostedt , Masami Hiramatsu , Mathieu Desnoyers , Shuah Khan Cc: linux-kernel@vger.kernel.org, linux-trace-kernel@vger.kernel.org, linux-kselftest@vger.kernel.org Subject: [PATCH] selftests/ftrace: Fix unique symbol check in kprobe_non_uniq_symbol.tc Date: Wed, 9 Sep 2026 11:29:53 +0200 Message-ID: <20260909092954.2200558-1-svens@linux.ibm.com> X-Mailer: git-send-email 2.53.0 Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Transfer-Encoding: quoted-printable X-TM-AS-GCONF: 00 X-Proofpoint-GUID: 6pSV8Uo2XJFQeN7f1gTIe3kPkKM4nOwj X-Proofpoint-ORIG-GUID: 6pSV8Uo2XJFQeN7f1gTIe3kPkKM4nOwj X-Authority-Analysis: v=2.4 cv=RNCD2Yi+ c=1 sm=1 tr=0 ts=6aa12720 cx=c_pps a=5BHTudwdYE3Te8bg5FgnPg==:117 a=5BHTudwdYE3Te8bg5FgnPg==:17 a=VdqzKS8jKosA:10 a=VkNPw1HP01LnGYTKEx00:22 a=RnoormkPH1_aCDwRdu11:22 a=Y2IxJ9c9Rs8Kov3niI8_:22 a=VnNF1IyMAAAA:8 a=8iogyDQ46Larf4JUBJoA:9 X-Proofpoint-Spam-Info: AW1haW4tMjYwOTA5MDEwMCBTYWx0ZWRfX2JGVe8HRpP1I K/pDg858DJMLTsRUFKvRMLCudfChvnDdqgogP0MuE8xaNN5xUK87Mmw9/t/8g3BMQAP1bItL4Cm Filo4f7WHLhVzcorLvAcImoScIc/sFU= X-Proofpoint-Spam-Details-Enc: AW1haW4tMjYwOTA5MDEwMCBTYWx0ZWRfXyIvu1WNtEaJ5 gyVVCSbbWtFCXH9tC/rt0ynHRMQTnKwdY2V2W09dW1aHx06fQCaif5wWMbKwDKUJKYyRwKNypGt +7Nh/AlMmxXaY+WrjOiqNK7jJaF45TwAKnwdUTuAZ0mRIJdk0MIGXYbO9mUdBGPeNyFuviyZKzV qpHkGer9RPuWGjSuBixOmYmH0d/fHmTi75M8bMJdh0J/Qt9/zCA4tTaEdVmJMekKTmChjH7gF6N KMl3BoQw8Yavr9K+ktSOAr0bNnk/HwVXDrkY7zYH3CmSIk0y6ToqEh6GDQhBaObqoE2aK7pTibb QyFLNB+9uritXQIqUPvmGblYDI+zZf8LW6sgE8nF2nRK01ilmF9EsLlNf9yQY3MWNwxVCxYzYFY gF1iA40eU9erwUgTT7x1Irw2vTyok8DuJvUYqvz3PP/5b3cWRoJMWxNPj7d4R1MLd/j5ZwIdXZ2 NZE1UXy/MaXAcSSBrng== X-Proofpoint-Virus-Version: vendor=baseguard engine=ICAP:2.0.293,Aquarius:18.0.1176,Hydra:6.1.134,FMLib:17.12.100.49 definitions=2026-09-08_03,2026-09-08_03,2025-10-01_01 X-Proofpoint-Spam-Details: rule=outbound_notspam policy=outbound score=0 priorityscore=1501 lowpriorityscore=0 bulkscore=0 clxscore=1011 spamscore=0 impostorscore=0 adultscore=0 phishscore=0 suspectscore=0 malwarescore=0 classifier=typeunknown authscore=0 authtc= authcc= route=outbound adjust=0 reason=mlx scancount=1 engine=8.22.0-2606150000 definitions=main-2609090100 The current regex also matches symbols in modules, which makes the test fail on s390 where name_show is present only once in the kernel, but also multiple times in modules: 000001b1401cdc20 t name_show 000001b0c05e6c40 t name_show [mdev] 000001b0c0495f30 t name_show [i2c_core] Fix this by changing the regular expression to only match the function name. Signed-off-by: Sven Schnelle --- .../selftests/ftrace/test.d/kprobe/kprobe_non_uniq_symbol.tc | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/tools/testing/selftests/ftrace/test.d/kprobe/kprobe_non_uniq= _symbol.tc b/tools/testing/selftests/ftrace/test.d/kprobe/kprobe_non_uniq= _symbol.tc index bc9514428dba..07b1177c1634 100644 --- a/tools/testing/selftests/ftrace/test.d/kprobe/kprobe_non_uniq_symbol= .tc +++ b/tools/testing/selftests/ftrace/test.d/kprobe/kprobe_non_uniq_symbol= .tc @@ -6,7 +6,7 @@ SYMBOL=3D'name_show' =20 # We skip this test on kernel where SYMBOL is unique or does not exist. -if [ "$(grep -c -E "[[:alnum:]]+ t ${SYMBOL}" /proc/kallsyms)" -le '1' ]= ; then +if [ "$(grep -c -E "[[:alnum:]]+ t ${SYMBOL}$" /proc/kallsyms)" -le '1' = ]; then exit_unsupported fi =20 --=20 2.53.0