staging: xgifb: main: use readb()/readw() to access iomapped memory

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Use readb()/readw() instead of direct pointer access to read I/O mapped
memory and also add __iomem annotation.

The patch eliminates the following sparse warnings:

drivers/staging/xgifb/XGI_main_26.c:2125:35: warning: incorrect type in assignment (different address spaces)
drivers/staging/xgifb/XGI_main_26.c:2125:35:    expected char *[addressable] [toplevel] [assigned] mmio_vbase
drivers/staging/xgifb/XGI_main_26.c:2125:35:    got void [noderef] <asn:2>*
drivers/staging/xgifb/XGI_main_26.c:2439:31: warning: incorrect type in argument 1 (different address spaces)
drivers/staging/xgifb/XGI_main_26.c:2439:31:    expected void volatile [noderef] <asn:2>*addr
drivers/staging/xgifb/XGI_main_26.c:2439:31:    got char *[addressable] [toplevel] [assigned] mmio_vbase
drivers/staging/xgifb/XGI_main_26.c:2463:31: warning: incorrect type in argument 1 (different address spaces)
drivers/staging/xgifb/XGI_main_26.c:2463:31:    expected void volatile [noderef] <asn:2>*addr
drivers/staging/xgifb/XGI_main_26.c:2463:31:    got char *[addressable] [toplevel] [assigned] mmio_vbase

Signed-off-by: Aaro Koskinen <aaro.koskinen@iki.fi>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>

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This commit is contained in:

Aaro Koskinen 2011-09-13 22:49:31 +03:00 • committed by Greg Kroah-Hartman

parent d15cce5016

commit 863c02af58

2 changed files with 23 additions and 33 deletions

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54

drivers/staging/xgifb/XGI_main_26.c

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2

drivers/staging/xgifb/XGIfb.h

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