On 07/13/2018 05:20 PM, Logan Gunthorpe wrote:
On 13/07/18 05:38 PM, Guenter Roeck wrote:
This patch causes a build failure in -next when building
ppc:corenet64_smp_defconfig.
Thanks for the report. This 64bit IO stuff is a bit of a mess. It looks
like your corner case arch and config was never covered by the kbuild
robot which has run extensively on this patchset.
Anyway, I think the fix is to put back the ioread64/write64 prototypes
(even though they are only used in this one corner).
Can you try it with the following patch to ensure it fixes things for you?
It does.
Guenter
Logan
--
diff --git a/include/asm-generic/iomap.h b/include/asm-generic/iomap.h
index 5a4af0199b32..9f11a79e0d7a 100644
--- a/include/asm-generic/iomap.h
+++ b/include/asm-generic/iomap.h
@@ -32,6 +32,11 @@ extern unsigned int ioread16be(void __iomem *);
extern unsigned int ioread32(void __iomem *);
extern unsigned int ioread32be(void __iomem *);
+#ifdef CONFIG_64BIT
+extern u64 ioread64(void __iomem *);
+extern u64 ioread64be(void __iomem *);
+#endif
+
#ifdef readq
#define ioread64_lo_hi ioread64_lo_hi
#define ioread64_hi_lo ioread64_hi_lo
@@ -49,6 +54,11 @@ extern void iowrite16be(u16, void __iomem *);
extern void iowrite32(u32, void __iomem *);
extern void iowrite32be(u32, void __iomem *);
+#ifdef CONFIG_64BIT
+extern void iowrite64(u64, void __iomem *);
+extern void iowrite64be(u64, void __iomem *);
+#endif
+
#ifdef writeq
#define iowrite64_lo_hi iowrite64_lo_hi
#define iowrite64_hi_lo iowrite64_hi_lo
