From: Jiaxun Yang Date: Tue, 14 Jan 2025 18:11:58 +0000 (+0000) Subject: MIPS: pci-legacy: Override pci_address_to_pio X-Git-Tag: for-6.15/block-20250322~114^2~1 X-Git-Url: https://git.kernel.dk/?a=commitdiff_plain;h=df1b8d6e89db0edd572a1e375f5d3dd5575b9a9b;p=linux-block.git MIPS: pci-legacy: Override pci_address_to_pio pci-legacy systems are not using logic_pio to managed PIO allocations, thus the generic pci_address_to_pio won't work when PCI_IOBASE is defined. Override the function to use architecture implementation to fix the problem. Cc: stable@vger.kernel.org Fixes: 4bfb53e7d317 ("mips: add including") Reported-by: Mateusz Jończyk Closes: https://lore.kernel.org/r/99f75c66-4c2d-45dc-a808-b5ba440c7551@app.fastmail.com/ Signed-off-by: Jiaxun Yang Signed-off-by: Thomas Bogendoerfer --- diff --git a/arch/mips/pci/pci-legacy.c b/arch/mips/pci/pci-legacy.c index ec2567f8efd8..66898fd182dc 100644 --- a/arch/mips/pci/pci-legacy.c +++ b/arch/mips/pci/pci-legacy.c @@ -29,6 +29,14 @@ static LIST_HEAD(controllers); static int pci_initialized; +unsigned long pci_address_to_pio(phys_addr_t address) +{ + if (address > IO_SPACE_LIMIT) + return (unsigned long)-1; + + return (unsigned long) address; +} + /* * We need to avoid collisions with `mirrored' VGA ports * and other strange ISA hardware, so we always want the