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Wed, 01 Apr 2026 00:07:58 -0700 (PDT) Received: from work ([120.60.63.102]) by smtp.gmail.com with ESMTPSA id 98e67ed59e1d1-35dbe6e2fc9sm3956464a91.15.2026.04.01.00.07.54 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Wed, 01 Apr 2026 00:07:57 -0700 (PDT) From: Manivannan Sadhasivam To: brgl@kernel.org, robh@kernel.org Cc: linux-pci@vger.kernel.org, linux-pm@vger.kernel.org, linux-kernel@vger.kernel.org, linux-serial@vger.kernel.org, mani@kernel.org, Manivannan Sadhasivam , kernel test robot Subject: [PATCH 3/3] power: sequencing: pcie-m2: Guard the helper functions making use of PCI bus notifier Date: Wed, 1 Apr 2026 12:37:35 +0530 Message-ID: <20260401070735.107162-4-manivannan.sadhasivam@oss.qualcomm.com> X-Mailer: git-send-email 2.51.0 In-Reply-To: <20260401070735.107162-1-manivannan.sadhasivam@oss.qualcomm.com> References: <20260401070735.107162-1-manivannan.sadhasivam@oss.qualcomm.com> 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-Proofpoint-Spam-Details-Enc: AW1haW4tMjYwNDAxMDA2MSBTYWx0ZWRfXyaWUwKXlUEID nEhi8nmzEdUGjO8crdHteYYa08vJYkrMrWG/PJSdNDDE1N51YmREWlWriVwpzUOwDyVpzPvEYHu e2H7936JmZ7ibelJh1ll4PEz3AQ4C7ENyyLWdJF1gRtp8NgR/8YUQJcRUCwPPrvhQXuLCZxfPGC jm/nuGo3AgfwWBfcYhC0Vy4zMl1N1YoD3Sd2UzADSoQYvn23OXQURZBBFXp1nO5g1vgJlQne/zE +t4vQtISEFRP/MQNXpMFh9mna2JEb1nD7CM1undm7SnG8pg6aDdSkwNhWPs8OZ2x/AkH6uI2tE8 b3aS+wZ1sufptBVNsFuMoXRuMxNfGZJDS4fzB6aCcqPQ9jwN6a1Ci32k6TIBdIrsj7HnkmYeiM6 +zHVKL4eXltsS78cqUMfhnv8hnazFGLQxtRvYkXvit82YRQQyuMl4rThGmFk/kGl/2ZDXsgSpDb JmI4YiyyomBuImTMOcA== X-Authority-Analysis: v=2.4 cv=KNlXzVFo c=1 sm=1 tr=0 ts=69ccc44f cx=c_pps a=UNFcQwm+pnOIJct1K4W+Mw==:117 a=zTATW481NYPnotdwU90osA==:17 a=A5OVakUREuEA:10 a=s4-Qcg_JpJYA:10 a=VkNPw1HP01LnGYTKEx00:22 a=u7WPNUs3qKkmUXheDGA7:22 a=gowsoOTTUOVcmtlkKump:22 a=VwQbUJbxAAAA:8 a=QyXUC8HyAAAA:8 a=EUspDBNiAAAA:8 a=7-A4b6ptinYaPxXeEqIA:9 a=uKXjsCUrEbL0IQVhDsJ9:22 X-Proofpoint-ORIG-GUID: Hr3IiZO1DnZcHaVhg0ibfVm7dBE4Z4Er X-Proofpoint-GUID: Hr3IiZO1DnZcHaVhg0ibfVm7dBE4Z4Er 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=2026-04-01_02,2026-03-31_02,2025-10-01_01 X-Proofpoint-Spam-Details: rule=outbound_notspam policy=outbound score=0 spamscore=0 lowpriorityscore=0 priorityscore=1501 adultscore=0 malwarescore=0 suspectscore=0 clxscore=1015 phishscore=0 bulkscore=0 impostorscore=0 classifier=typeunknown authscore=0 authtc= authcc= route=outbound adjust=0 reason=mlx scancount=1 engine=8.22.0-2603050001 definitions=main-2604010061 Content-Type: text/plain; charset="utf-8" The PCI bus notifier is only visible if CONFIG_PCI symbol is selected in Kconfig. But this driver can be built without CONFIG_PCI due to CONFIG_COMPILE_TEST, leading to below build error: drivers/power/sequencing/pwrseq-pcie-m2.c: In function 'pwrseq_pcie_m2_f= ree_resources': >> drivers/power/sequencing/pwrseq-pcie-m2.c:185:34: error: 'pci_bus_type' = undeclared (first use in this function); did you mean 'pci_pcie_type'? 185 | bus_unregister_notifier(&pci_bus_type, &ctx->nb); | ^~~~~~~~~~~~ | pci_pcie_type drivers/power/sequencing/pwrseq-pcie-m2.c:185:34: note: each undeclared = identifier is reported only once for each function it appears in drivers/power/sequencing/pwrseq-pcie-m2.c: In function 'pwrseq_pcie_m2_r= egister_notifier': drivers/power/sequencing/pwrseq-pcie-m2.c:340:54: error: 'pci_bus_type' = undeclared (first use in this function); did you mean 'pci_pcie_type'? 340 | ret =3D bus_register_notifier(&pci_bus_t= ype, &ctx->nb); | ^~~~~~~~~~~~ | pci_pcie_ty= pe So add guards to make sure that all these helper functions making use of the PCI bus notifier are only compiled if CONFIG_PCI is selected. Reported-by: kernel test robot Closes: https://lore.kernel.org/oe-kbuild-all/202603180609.ucspJefN-lkp@int= el.com Fixes: 3f736aecbdc8 ("power: sequencing: pcie-m2: Create serdev device for = WCN7850 bluetooth") Signed-off-by: Manivannan Sadhasivam --- drivers/power/sequencing/pwrseq-pcie-m2.c | 9 +++++++++ 1 file changed, 9 insertions(+) diff --git a/drivers/power/sequencing/pwrseq-pcie-m2.c b/drivers/power/sequ= encing/pwrseq-pcie-m2.c index a75ca4fda2eb..d3102fea8d93 100644 --- a/drivers/power/sequencing/pwrseq-pcie-m2.c +++ b/drivers/power/sequencing/pwrseq-pcie-m2.c @@ -177,6 +177,7 @@ static int pwrseq_pcie_m2_match(struct pwrseq_device *p= wrseq, return PWRSEQ_NO_MATCH; } =20 +#if IS_ENABLED(CONFIG_PCI) static int pwrseq_m2_pcie_create_bt_node(struct pwrseq_pcie_m2_ctx *ctx, struct device_node *parent) { @@ -374,6 +375,12 @@ static int pwrseq_pcie_m2_register_notifier(struct pwr= seq_pcie_m2_ctx *ctx, stru =20 return 0; } +#else +static int pwrseq_pcie_m2_register_notifier(struct pwrseq_pcie_m2_ctx *ctx= , struct device *dev) +{ + return 0; +} +#endif /* CONFIG_PCI */ =20 static int pwrseq_pcie_m2_probe(struct platform_device *pdev) { @@ -452,8 +459,10 @@ static void pwrseq_pcie_m2_remove(struct platform_devi= ce *pdev) { struct pwrseq_pcie_m2_ctx *ctx =3D platform_get_drvdata(pdev); =20 +#if IS_ENABLED(CONFIG_PCI) bus_unregister_notifier(&pci_bus_type, &ctx->nb); pwrseq_pcie_m2_remove_serdev(ctx); +#endif =20 regulator_bulk_free(ctx->num_vregs, ctx->regs); } --=20 2.51.0