From: Julia Lawall <[email protected]>
The functions time_before, time_before_eq, time_after, and time_after_eq
are more robust for comparing jiffies against other values.
A simplified version of the semantic patch making this change is as follows:
(http://www.emn.fr/x-info/coccinelle/)
// <smpl>
@ change_compare_np @
expression E;
@@
(
- jiffies <= E
+ time_before_eq(jiffies,E)
|
- jiffies >= E
+ time_after_eq(jiffies,E)
|
- jiffies < E
+ time_before(jiffies,E)
|
- jiffies > E
+ time_after(jiffies,E)
)
@ include depends on change_compare_np @
@@
#include <linux/jiffies.h>
@ no_include depends on !include && change_compare_np @
@@
#include <linux/...>
+ #include <linux/jiffies.h>
// </smpl>
Signed-off-by: Julia Lawall <[email protected]>
---
diff -u -p linux-2.6/sound/oss/pss.c linuxcopy/sound/oss/pss.c
--- linux-2.6/sound/oss/pss.c 2006-11-30 19:05:48.000000000 +0100
+++ linuxcopy/sound/oss/pss.c 2007-12-26 15:59:55.000000000 +0100
@@ -60,6 +60,7 @@
#include <linux/init.h>
#include <linux/module.h>
#include <linux/spinlock.h>
+#include <linux/jiffies.h>
#include "sound_config.h"
#include "sound_firmware.h"
@@ -271,7 +272,7 @@ static int pss_reset_dsp(pss_confdata *
unsigned long i, limit = jiffies + HZ/10;
outw(0x2000, REG(PSS_CONTROL));
- for (i = 0; i < 32768 && (limit-jiffies >= 0); i++)
+ for (i = 0; i < 32768 && (time_before_eq(jiffies, limit)); i++)
inw(REG(PSS_CONTROL));
outw(0x0000, REG(PSS_CONTROL));
return 1;
@@ -371,11 +372,11 @@ static int pss_download_boot(pss_confdat
outw(0, REG(PSS_DATA));
limit = jiffies + HZ/10;
- for (i = 0; i < 32768 && (limit - jiffies >= 0); i++)
+ for (i = 0; i < 32768 && (time_before_eq(jiffies, limit)); i++)
val = inw(REG(PSS_STATUS));
limit = jiffies + HZ/10;
- for (i = 0; i < 32768 && (limit-jiffies >= 0); i++)
+ for (i = 0; i < 32768 && (time_before_eq(jiffies, limit)); i++)
{
val = inw(REG(PSS_STATUS));
if (val & 0x4000)
diff -u -p linux-2.6/sound/oss/sb_common.c linuxcopy/sound/oss/sb_common.c
--- linux-2.6/sound/oss/sb_common.c 2007-02-09 17:34:30.000000000 +0100
+++ linuxcopy/sound/oss/sb_common.c 2007-12-26 15:59:55.000000000 +0100
@@ -31,6 +31,7 @@
#include <linux/module.h>
#include <linux/delay.h>
#include <linux/spinlock.h>
+#include <linux/jiffies.h>
#include "sound_config.h"
#include "sound_firmware.h"
@@ -97,7 +98,7 @@ int sb_dsp_command(sb_devc * devc, unsig
* loops.
*/
- for (i = 0; i < 500000 && (limit-jiffies)>0; i++)
+ for (i = 0; i < 500000 && time_before(jiffies, limit); i++)
{
if ((inb(DSP_STATUS) & 0x80) == 0)
{
--
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