[UPDATE PATCH] net/sb1000: replace nicedelay() with ssleep()

Nishanth Aravamudan
2005-01-11T00:46:44Z

> msleep_interruptible-drivers_net_sb1000.patch

Please consider replacing with the following:

Description: Use ssleep() instead of nicedelay()
to guarantee the task delays as expected. Remove the prototype and
definition of nicedelay(). This is a very weird function, because it is
called to sleep in terms of usecs, but always sleeps for 1 second,
completely ignoring the parameter. I have gone ahead and followed suit,
just sleeping for a second in all cases, but maybe someone with the
hardware could tell me if perhaps the paramter *should* matter. Additionally,
nicedelay() is called in TASK_INTERRUPTIBLE state, but doesn't deal with signals
in case these longer delays do not complete, so I believe ssleep() is more
appropriate.

Signed-off-by: Nishanth Aravamudan <nacc@us.ibm.com>

--- 2.6.10-v/drivers/net/sb1000.c 2004-12-24 13:33:51.000000000 -0800
+++ 2.6.10/drivers/net/sb1000.c 2005-01-05 14:23:05.000000000 -0800
@@ -90,7 +90,6 @@ static int sb1000_close(struct net_devic

/* SB1000 hardware routines to be used during open/configuration phases */
-static inline void nicedelay(unsigned long usecs);
static inline int card_wait_for_busy_clear(const int ioaddr[],
const char* name);
static inline int card_wait_for_ready(const int ioaddr[], const char* name,
@@ -254,13 +253,6 @@ static struct pnp_driver sb1000_driver =

const int TimeOutJiffies = (875 * HZ) / 100;

-static inline void nicedelay(unsigned long usecs)
-{
- current->state = TASK_INTERRUPTIBLE;
- schedule_timeout(HZ);
- return;
-}
-
/* Card Wait For Busy Clear (cannot be used during an interrupt) */
static inline int
card_wait_for_busy_clear(const int ioaddr[], const char* name)
@@ -475,7 +467,7 @@ sb1000_reset(const int ioaddr[], const c
udelay(1000);
outb(0x0, port);
inb(port);
- nicedelay(60000);
+ ssleep(1);
outb(0x4, port);
inb(port);
udelay(1000);
@@ -537,7 +529,7 @@ sb1000_activate(const int ioaddr[], cons
const unsigned char Command0[6] = {0x80, 0x11, 0x00, 0x00, 0x00, 0x00};
const unsigned char Command1[6] = {0x80, 0x16, 0x00, 0x00, 0x00, 0x00};

- nicedelay(50000);
+ ssleep(1);
if ((status = card_send_command(ioaddr, name, Command0, st)))
return status;
if ((status = card_send_command(ioaddr, name, Command1, st)))
@@ -944,7 +936,7 @@ sb1000_open(struct net_device *dev)
/* initialize sb1000 */
if ((status = sb1000_reset(ioaddr, name)))
return status;
- nicedelay(200000);
+ ssleep(1);
if ((status = sb1000_check_CRC(ioaddr, name)))
return status;