MIPS: PCI: Remove unnecessary second application of align

Aligning res->start by align inside pcibios_align_resource() is unnecessary
because caller of pcibios_align_resource() is __find_resource_space() that
aligns res->start with align before calling pcibios_align_resource().

Aligning by align in case of IORESOURCE_IO && start & 0x300 cannot ever
result in changing start either because 0x300 bits would have not survived
the earlier alignment if align was large enough to have an impact.

Thus, remove the duplicated aligning from pcibios_align_resource().

Signed-off-by: Ilpo Järvinen <ilpo.jarvinen@linux.intel.com>
Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
Link: https://patch.msgid.link/20260324165633.4583-7-ilpo.jarvinen@linux.intel.com

diff --git a/arch/mips/pci/pci-generic.c b/arch/mips/pci/pci-generic.c
index f4957c26efc7e35da335ab4df08344d47f9fa0cd..aaa1d6de8bef698c27f0750820df8f28c1c21885 100644 (file)
--- a/arch/mips/pci/pci-generic.c
+++ b/arch/mips/pci/pci-generic.c
@@ -32,8 +32,6 @@ resource_size_t pcibios_align_resource(void *data, const struct resource *res,
        if (res->flags & IORESOURCE_IO && start & 0x300)
                start = (start + 0x3ff) & ~0x3ff;
 
-       start = (start + align - 1) & ~(align - 1);
-
        host_bridge = pci_find_host_bridge(dev->bus);
 
        if (host_bridge->align_resource)