linux-kernel - [PATCH v3 2/2] staging: slicoss: fix different address space warnings: 64 bits

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Date:   Thu, 17 Nov 2016 06:42:28 +0100
From:   Sergio Paracuellos <sergio.paracuellos@...il.com>
To:     gregkh@...uxfoundation.org
Cc:     devel@...verdev.osuosl.org, linux-kernel@...r.kernel.org,
        liodot@...il.com, charrer@...critech.com
Subject: [PATCH v3 2/2] staging: slicoss: fix different address space warnings: 64 bits

This patch fix the following sparse warnings in slicoss driver:
warning: incorrect type in assignment (different address spaces)

This changes are for 64 bits.

Signed-off-by: Sergio Paracuellos <sergio.paracuellos@...il.com>
---
 drivers/staging/slicoss/slic.h | 9 +++++++++
 1 file changed, 9 insertions(+)

diff --git a/drivers/staging/slicoss/slic.h b/drivers/staging/slicoss/slic.h
index d637ab1..63637ba 100644
--- a/drivers/staging/slicoss/slic.h
+++ b/drivers/staging/slicoss/slic.h
@@ -540,6 +540,7 @@ static inline void slic_flush_write(struct adapter *adapter)
 	ioread32(adapter->regs + SLIC_REG_HOSTID);
 }
 
+#if BITS_PER_LONG == 32
 static inline u64 slic_ioread64(void __iomem *mmio)
 {
 	u64 low, high;
@@ -548,6 +549,14 @@ static inline u64 slic_ioread64(void __iomem *mmio)
 	high = ioread32(mmio + sizeof(u32));
 	return low | (high << 32);
 }
+#elif BITS_PER_LONG == 64
+static inline u64 slic_ioread64(void __iomem *mmio)
+{
+	return readq(mmio);
+}
+#else
+#error BITS_PER_LONG must be 32 or 64
+#endif
 
 #define UPDATE_STATS(largestat, newstat, oldstat)                        \
 {                                                                        \
-- 
1.9.1