The ioreadX() helpers have inconsistent interface. On some architectures void *__iomem address argument is a pointer to const, on some not.
Implementations of ioreadX() do not modify the memory under the address so they can be converted to a "const" version for const-safety and consistency among architectures.
Signed-off-by: Krzysztof Kozlowski krzk@kernel.org Reviewed-by: Geert Uytterhoeven geert+renesas@glider.be
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Changes since v1: 1. Add Geert's review. --- drivers/virtio/virtio_pci_modern.c | 6 +++--- 1 file changed, 3 insertions(+), 3 deletions(-)
diff --git a/drivers/virtio/virtio_pci_modern.c b/drivers/virtio/virtio_pci_modern.c index 7abcc50838b8..fc58db4ab6c3 100644 --- a/drivers/virtio/virtio_pci_modern.c +++ b/drivers/virtio/virtio_pci_modern.c @@ -26,16 +26,16 @@ * method, i.e. 32-bit accesses for 32-bit fields, 16-bit accesses * for 16-bit fields and 8-bit accesses for 8-bit fields. */ -static inline u8 vp_ioread8(u8 __iomem *addr) +static inline u8 vp_ioread8(const u8 __iomem *addr) { return ioread8(addr); } -static inline u16 vp_ioread16 (__le16 __iomem *addr) +static inline u16 vp_ioread16 (const __le16 __iomem *addr) { return ioread16(addr); }
-static inline u32 vp_ioread32(__le32 __iomem *addr) +static inline u32 vp_ioread32(const __le32 __iomem *addr) { return ioread32(addr); }