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Subject[PATCH 01/10] char: Use get_unaligned_* helpers
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Date
Remove unnecessary temp variable from_buf in snsc_event.c

Signed-off-by: Harvey Harrison <harvey.harrison@gmail.com>
---
All ten patches depend on the introduction of the new unaligned access
helpers I sent out last week. This is a demonstration of the users of
the api.

drivers/char/rocket_int.h | 2 +-
drivers/char/snsc_event.c | 10 +++-------
2 files changed, 4 insertions(+), 8 deletions(-)

diff --git a/drivers/char/rocket_int.h b/drivers/char/rocket_int.h
index b01d381..143cc43 100644
--- a/drivers/char/rocket_int.h
+++ b/drivers/char/rocket_int.h
@@ -55,7 +55,7 @@ static inline void sOutW(unsigned short port, unsigned short value)

static inline void out32(unsigned short port, Byte_t *p)
{
- u32 value = le32_to_cpu(get_unaligned((__le32 *)p));
+ u32 value = get_unaligned_le32(p);
#ifdef ROCKET_DEBUG_IO
printk(KERN_DEBUG "out32(%x, %lx)...\n", port, value);
#endif
diff --git a/drivers/char/snsc_event.c b/drivers/char/snsc_event.c
index 1b75b0b..31a7765 100644
--- a/drivers/char/snsc_event.c
+++ b/drivers/char/snsc_event.c
@@ -63,16 +63,13 @@ static int
scdrv_parse_event(char *event, int *src, int *code, int *esp_code, char *desc)
{
char *desc_end;
- __be32 from_buf;

/* record event source address */
- from_buf = get_unaligned((__be32 *)event);
- *src = be32_to_cpup(&from_buf);
+ *src = get_unaligned_be32(event);
event += 4; /* move on to event code */

/* record the system controller's event code */
- from_buf = get_unaligned((__be32 *)event);
- *code = be32_to_cpup(&from_buf);
+ *code = get_unaligned_be32(event);
event += 4; /* move on to event arguments */

/* how many arguments are in the packet? */
@@ -86,8 +83,7 @@ scdrv_parse_event(char *event, int *src, int *code, int *esp_code, char *desc)
/* not an integer argument, so give up */
return -1;
}
- from_buf = get_unaligned((__be32 *)event);
- *esp_code = be32_to_cpup(&from_buf);
+ *esp_code = get_unaligned_be32(event);
event += 4;

/* parse out the event description */
--
1.5.5.144.g3e42



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