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13 Apr 2026 04:54:58 -0700 From: =?UTF-8?q?Ilpo=20J=C3=A4rvinen?= Date: Mon, 13 Apr 2026 14:54:55 +0300 (EEST) To: =?ISO-8859-2?Q?Krzysztof_Wilczy=F1ski?= cc: Bjorn Helgaas , Bjorn Helgaas , Manivannan Sadhasivam , Lorenzo Pieralisi , Magnus Lindholm , Matt Turner , Richard Henderson , Christophe Leroy , Madhavan Srinivasan , Michael Ellerman , Nicholas Piggin , Dexuan Cui , =?ISO-8859-2?Q?Krzysztof_Ha=B3asa?= , Lukas Wunner , Oliver O'Halloran , Saurabh Singh Sengar , Shuan He , Srivatsa Bhat , linux-pci@vger.kernel.org, linux-alpha@vger.kernel.org, linuxppc-dev@lists.ozlabs.org Subject: Re: [PATCH v4 14/24] alpha/PCI: Clean up pci_mmap_resource() In-Reply-To: <20260411080148.471335-15-kwilczynski@kernel.org> Message-ID: References: <20260411080148.471335-1-kwilczynski@kernel.org> <20260411080148.471335-15-kwilczynski@kernel.org> 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-Type: multipart/mixed; boundary="8323328-878657269-1776081295=:962" This message is in MIME format. The first part should be readable text, while the remaining parts are likely unreadable without MIME-aware tools. --8323328-878657269-1776081295=:962 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: QUOTED-PRINTABLE On Sat, 11 Apr 2026, Krzysztof Wilczy=C5=84ski wrote: > Replace open-coded res->flags type checks with new pci_resource_is_mem() > and pci_resource_start() helpers. Move the pci_resource_n() call into > pcibios_resource_to_bus() and drop the local struct resource pointer. >=20 > Signed-off-by: Krzysztof Wilczy=C5=84ski > --- > arch/alpha/kernel/pci-sysfs.c | 8 ++++---- > 1 file changed, 4 insertions(+), 4 deletions(-) >=20 > diff --git a/arch/alpha/kernel/pci-sysfs.c b/arch/alpha/kernel/pci-sysfs.= c > index 7aac5e76dcd6..6c011dab326d 100644 > --- a/arch/alpha/kernel/pci-sysfs.c > +++ b/arch/alpha/kernel/pci-sysfs.c > @@ -70,7 +70,6 @@ static int pci_mmap_resource(struct kobject *kobj, > { > =09struct pci_dev *pdev =3D to_pci_dev(kobj_to_dev(kobj)); > =09int barno =3D (unsigned long)attr->private; > -=09struct resource *res =3D pci_resource_n(pdev, barno); > =09enum pci_mmap_state mmap_type; > =09struct pci_bus_region bar; > =09int ret; > @@ -79,15 +78,16 @@ static int pci_mmap_resource(struct kobject *kobj, > =09if (ret) > =09=09return ret; > =20 > -=09if ((res->flags & IORESOURCE_MEM) && iomem_is_exclusive(res->start)) > +=09if (pci_resource_is_mem(pdev, barno) && > +=09 iomem_is_exclusive(pci_resource_start(pdev, barno))) > =09=09return -EINVAL; > =20 > =09if (!__pci_mmap_fits(pdev, barno, vma, sparse)) > =09=09return -EINVAL; > =20 > -=09pcibios_resource_to_bus(pdev->bus, &bar, res); > +=09pcibios_resource_to_bus(pdev->bus, &bar, pci_resource_n(pdev, barno))= ; > =09vma->vm_pgoff +=3D bar.start >> (PAGE_SHIFT - (sparse ? 5 : 0)); > -=09mmap_type =3D res->flags & IORESOURCE_MEM ? pci_mmap_mem : pci_mmap_i= o; > +=09mmap_type =3D pci_resource_is_mem(pdev, barno) ? pci_mmap_mem : pci_m= map_io; > =20 > =09return hose_mmap_page_range(pdev->sysdata, vma, mmap_type, sparse); > } >=20 Reviewed-by: Ilpo J=C3=A4rvinen --=20 i. --8323328-878657269-1776081295=:962--