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Date: Tue, 12 Feb 2013 23:40:59 +0100
From: Linus Walleij <linus.walleij@...aro.org>
To: Jens Axboe <axboe@...nel.dk>
Cc: linux-kernel@...r.kernel.org,
Linus Walleij <linus.walleij@...aro.org>
Subject: [PATCH 8/9] block: xd: remove custom DEBUG print system
The driver used a variant of debug levels, convert this over to
using the kernel pr_debug() macro for all instances. Instead
of hard-coding function names in debug messages, pass __func__.
Signed-off-by: Linus Walleij <linus.walleij@...aro.org>
---
drivers/block/xd.c | 46 +++++++++++++++-------------------------------
1 file changed, 15 insertions(+), 31 deletions(-)
diff --git a/drivers/block/xd.c b/drivers/block/xd.c
index 1875590..7ecebd4 100644
--- a/drivers/block/xd.c
+++ b/drivers/block/xd.c
@@ -113,16 +113,6 @@
#define XD_TIMEOUT (HZ * 30) /* 30 second timeout */
#define XD_RETRIES 4 /* maximum 4 retries */
-#undef DEBUG /* define for debugging output */
-
-#ifdef DEBUG
- #define DEBUG_STARTUP /* debug driver initialisation */
- #define DEBUG_OVERRIDE /* debug override geometry detection */
- #define DEBUG_READWRITE /* debug each read/write command */
- #define DEBUG_OTHER /* debug misc. interrupt/DMA stuff */
- #define DEBUG_COMMAND /* debug each controller command */
-#endif /* DEBUG */
-
/* this structure defines the XT drives and their types */
struct xd_info {
u_char heads;
@@ -270,9 +260,8 @@ static u_char xd_setup_dma(u_char mode, u_char *buffer, u_int count)
if (nodma)
return (PIO_MODE);
if (((unsigned long) buffer & 0xFFFF0000) != (((unsigned long) buffer + count) & 0xFFFF0000)) {
-#ifdef DEBUG_OTHER
- printk("xd_setup_dma: using PIO, transfer overlaps 64k boundary\n");
-#endif /* DEBUG_OTHER */
+ pr_debug("%s: using PIO, transfer overlaps 64k boundary\n",
+ __func__);
return (PIO_MODE);
}
@@ -357,10 +346,8 @@ static u_int xd_command(u_char *command, u_char mode, u_char *indata,
{
u_char cmdblk[6], csb, complete = 0;
-#ifdef DEBUG_COMMAND
- printk("xd_command: command = 0x%X, mode = 0x%X, indata = 0x%X, outdata = 0x%X, sense = 0x%X\n",command,mode,indata,outdata,sense);
-#endif /* DEBUG_COMMAND */
-
+ pr_debug("%s: command = 0x%p, mode = 0x%X, indata = 0x%p, outdata = 0x%p, sense = 0x%p\n",
+ __func__, command, mode, indata, outdata, sense);
outb(0,XD_SELECT);
udelay(OUTB_DELAY);
outb(mode,XD_CONTROL);
@@ -413,9 +400,7 @@ static u_int xd_command(u_char *command, u_char mode, u_char *indata,
printk("xd: warning! sense command failed!\n");
}
-#ifdef DEBUG_COMMAND
- printk("xd_command: completed with csb = 0x%X\n",csb);
-#endif /* DEBUG_COMMAND */
+ pr_debug("%s: completed with csb = 0x%X\n", __func__, csb);
return (csb & CSB_ERROR);
}
@@ -470,9 +455,9 @@ static int xd_readwrite(u_char operation, struct xd_info *p, char *buffer,
char **real_buffer;
register int i;
-#ifdef DEBUG_READWRITE
- printk("xd_readwrite: operation = %s, drive = %d, buffer = 0x%X, block = %d, count = %d\n",operation == READ ? "read" : "write",drive,buffer,block,count);
-#endif /* DEBUG_READWRITE */
+ pr_debug("%s: operation = %s, drive = %d, buffer = 0x%p, block = %d, count = %d\n",
+ __func__, operation == READ ? "read" : "write",
+ drive, buffer, block, count);
spin_unlock_irq(&xd_lock);
@@ -487,9 +472,8 @@ static int xd_readwrite(u_char operation, struct xd_info *p, char *buffer,
cylinder = track / p->heads;
sector = block % p->sectors;
-#ifdef DEBUG_READWRITE
- printk("xd_readwrite: drive = %d, head = %d, cylinder = %d, sector = %d, count = %d\n",drive,head,cylinder,sector,temp);
-#endif /* DEBUG_READWRITE */
+ pr_debug("%s: drive = %d, head = %d, cylinder = %d, sector = %d, count = %d\n",
+ __func__, drive, head, cylinder, sector, temp);
if (xd_dma_buffer) {
mode = xd_setup_dma(operation == READ ? DMA_MODE_READ : DMA_MODE_WRITE,(u_char *)(xd_dma_buffer),temp * 0x200);
@@ -588,12 +572,14 @@ static void do_xd_request(struct request_queue * q)
int retry;
if (req->cmd_type != REQ_TYPE_FS) {
- pr_err("unsupported request: %d\n", req->cmd_type);
+ pr_err("%s: unsupported request: %d\n",
+ __func__, req->cmd_type);
res = -EIO;
goto done;
}
if (block + count > get_capacity(req->rq_disk)) {
- pr_err("request beyond device capacity\n");
+ pr_err("%s: request beyond device capacity\n",
+ __func__);
res = -EIO;
goto done;
}
@@ -671,9 +657,7 @@ static const struct block_device_operations xd_fops = {
static irqreturn_t xd_interrupt_handler(int irq, void *dev_id)
{
if (inb(XD_STATUS) & STAT_INTERRUPT) { /* check if it was our device */
-#ifdef DEBUG_OTHER
- printk("xd_interrupt_handler: interrupt detected\n");
-#endif /* DEBUG_OTHER */
+ pr_debug("%s: interrupt detected\n", __func__);
outb(0,XD_CONTROL); /* acknowledge interrupt */
udelay(OUTB_DELAY);
wake_up(&xd_wait_int); /* and wake up sleeping processes */
--
1.8.1.2
--
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