James Bottomley wrote:
On Wed, 2007-05-23 at 14:41 -0700, [EMAIL PROTECTED] wrote:
From: Martin Bligh <[EMAIL PROTECTED]>

Fix up compiler warnings in megaraid driver

[EMAIL PROTECTED]: build fix]
Signed-off-by: Martin J. Bligh <[EMAIL PROTECTED]>
Cc: James Bottomley <[EMAIL PROTECTED]>
Signed-off-by: Andrew Morton <[EMAIL PROTECTED]>
---

 drivers/scsi/megaraid.c |   22 +++++++++++++---------
 1 files changed, 13 insertions(+), 9 deletions(-)

diff -puN 
drivers/scsi/megaraid.c~scsi-cover-up-bugs-fix-up-compiler-warnings-in-megaraid-driver
 drivers/scsi/megaraid.c
--- 
a/drivers/scsi/megaraid.c~scsi-cover-up-bugs-fix-up-compiler-warnings-in-megaraid-driver
+++ a/drivers/scsi/megaraid.c
@@ -73,10 +73,14 @@ static unsigned short int max_mbox_busy_
 module_param(max_mbox_busy_wait, ushort, 0);
 MODULE_PARM_DESC(max_mbox_busy_wait, "Maximum wait for mailbox in microseconds if 
busy (default=MBOX_BUSY_WAIT=10)");
-#define RDINDOOR(adapter) readl((adapter)->mmio_base + 0x20)
-#define RDOUTDOOR(adapter)     readl((adapter)->mmio_base + 0x2C)
-#define WRINDOOR(adapter,value)         writel(value, (adapter)->mmio_base + 
0x20)
-#define WROUTDOOR(adapter,value) writel(value, (adapter)->mmio_base + 0x2C)
+#define RDINDOOR(adapter)              readl((volatile void __iomem *) \
+                                                       (adapter)->base + 0x20)
+#define RDOUTDOOR(adapter)             readl((volatile void __iomem *) \
+                                                       (adapter)->base + 0x2C)
+#define WRINDOOR(adapter,value)                writel(value, (volatile void 
__iomem *)\
+                                                       (adapter)->base + 0x20)
+#define WROUTDOOR(adapter,value)       writel(value, (volatile void __iomem *)\
+                                                       (adapter)->base + 0x2C)

This is both unnecessary and wrong ... it coerces the iomem value and
would squelch the useful warnings gcc would issue if base ever lost its
iomem annotation.

Is there another, better, way to stop it spewing compile warnings like
something out of a horror movie?

M.
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