Re: [PATCH v7 15/24] alpha/PCI: Remove WARN from __pci_mmap_fits() and __legacy_mmap_fits()
Krzysztof WilczyĆski <[email protected]> Fri, 8 May 2026 14:04:57 +0900
| Newsgroups | dev.linux.lists.sashiko,org.kernel.vger.linux-pci |
|---|---|
| Message-ID | <20260508045824.GA3160093@rocinante> |
Hello,
> > static int __legacy_mmap_fits(struct pci_controller *hose,
> > struct vm_area_struct *vma,
> > - unsigned long res_size, int sparse)
> > + unsigned long res_size)
>
> This isn't a bug, but since the WARN() statement that used hose->index was
> removed below, is the hose parameter still needed? It appears to be completely
> unused in the function body now.
Ah, yes, darn. Forgot to remove this one, too. A quick fix:
diff --git i/arch/alpha/kernel/pci-sysfs.c w/arch/alpha/kernel/pci-sysfs.c
index 7dae4999c5e3..94dbc470cd6c 100644
--- i/arch/alpha/kernel/pci-sysfs.c
+++ w/arch/alpha/kernel/pci-sysfs.c
@@ -143,8 +143,7 @@ static int sparse_mem_mmap_fits(struct pci_dev *pdev, int num)
/* Legacy I/O bus mapping stuff. */
-static int __legacy_mmap_fits(struct pci_controller *hose,
- struct vm_area_struct *vma,
+static int __legacy_mmap_fits(struct vm_area_struct *vma,
unsigned long res_size)
{
unsigned long nr, start, size;
@@ -179,7 +178,7 @@ int pci_mmap_legacy_page_range(struct pci_bus *bus, struct vm_area_struct *vma,
if (sparse)
res_size <<= 5;
- if (!__legacy_mmap_fits(hose, vma, res_size))
+ if (!__legacy_mmap_fits(vma, res_size))
return -EINVAL;
return hose_mmap_page_range(hose, vma, mmap_type, sparse);
Which can be applied/squashed later.
Thank you!
Krzysztof