[MMC] Pass -DDEBUG on compiler command line if MMC_DEBUG selected

Rather than each driver test MMC_DEBUG itself, and define DEBUG,
pass it in via the makefile instead.

Fix drivers to use pr_debug() where appropriate, and avoid defining
a DEBUG() macro.
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>

drivers/mmc/Makefile

@@ -23,3 +23,7 @@ obj-$(CONFIG_MMC_AU1X)		+= au1xmmc.o
 obj-$(CONFIG_MMC_OMAP)		+= omap.o
 
 mmc_core-y := mmc.o mmc_queue.o mmc_sysfs.o
+
+ifeq ($(CONFIG_MMC_DEBUG),y)
+EXTRA_CFLAGS += -DDEBUG
+endif

drivers/mmc/au1xmmc.c

@@ -56,12 +56,11 @@
 #define DRIVER_NAME "au1xxx-mmc"
 
 /* Set this to enable special debugging macros */
-/* #define MMC_DEBUG */
 
-#ifdef MMC_DEBUG
-#define DEBUG(fmt, idx, args...) printk("au1xx(%d): DEBUG: " fmt, idx, ##args)
+#ifdef DEBUG
+#define DBG(fmt, idx, args...) printk("au1xx(%d): DEBUG: " fmt, idx, ##args)
 #else
-#define DEBUG(fmt, idx, args...)
+#define DBG(fmt, idx, args...)
 #endif
 
 const struct {
@@ -424,18 +423,18 @@ static void au1xmmc_receive_pio(struct au1xmmc_host *host)
 			break;
 
 		if (status & SD_STATUS_RC) {
-			DEBUG("RX CRC Error [%d + %d].\n", host->id,
+			DBG("RX CRC Error [%d + %d].\n", host->id,
 					host->pio.len, count);
 			break;
 		}
 
 		if (status & SD_STATUS_RO) {
-			DEBUG("RX Overrun [%d + %d]\n", host->id,
+			DBG("RX Overrun [%d + %d]\n", host->id,
 					host->pio.len, count);
 			break;
 		}
 		else if (status & SD_STATUS_RU) {
-			DEBUG("RX Underrun [%d + %d]\n", host->id,
+			DBG("RX Underrun [%d + %d]\n", host->id,
 					host->pio.len,	count);
 			break;
 		}
@@ -721,7 +720,7 @@ static void au1xmmc_set_ios(struct mmc_host* mmc, struct mmc_ios* ios)
 {
 	struct au1xmmc_host *host = mmc_priv(mmc);
 
-	DEBUG("set_ios (power=%u, clock=%uHz, vdd=%u, mode=%u)\n",
+	DBG("set_ios (power=%u, clock=%uHz, vdd=%u, mode=%u)\n",
 	      host->id, ios->power_mode, ios->clock, ios->vdd,
 	      ios->bus_mode);
 
@@ -810,7 +809,7 @@ static irqreturn_t au1xmmc_irq(int irq, void *dev_id, struct pt_regs *regs)
 				au1xmmc_receive_pio(host);
 		}
 		else if (status & 0x203FBC70) {
-			DEBUG("Unhandled status %8.8x\n", host->id, status);
+			DBG("Unhandled status %8.8x\n", host->id, status);
 			handled = 0;
 		}
 
@@ -839,7 +838,7 @@ static void au1xmmc_poll_event(unsigned long arg)
 
 	if (host->mrq != NULL) {
 		u32 status = au_readl(HOST_STATUS(host));
-		DEBUG("PENDING - %8.8x\n", host->id, status);
+		DBG("PENDING - %8.8x\n", host->id, status);
 	}
 
 	mod_timer(&host->timer, jiffies + AU1XMMC_DETECT_TIMEOUT);

drivers/mmc/mmc.c

@@ -27,12 +27,6 @@
 
 #include "mmc.h"
 
-#ifdef CONFIG_MMC_DEBUG
-#define DBG(x...)	printk(KERN_DEBUG x)
-#else
-#define DBG(x...)	do { } while (0)
-#endif
-
 #define CMD_RETRIES	3
 
 /*
@@ -77,8 +71,9 @@ void mmc_request_done(struct mmc_host *host, struct mmc_request *mrq)
 {
 	struct mmc_command *cmd = mrq->cmd;
 	int err = mrq->cmd->error;
-	DBG("MMC: req done (%02x): %d: %08x %08x %08x %08x\n", cmd->opcode,
-	    err, cmd->resp[0], cmd->resp[1], cmd->resp[2], cmd->resp[3]);
+	pr_debug("MMC: req done (%02x): %d: %08x %08x %08x %08x\n",
+		 cmd->opcode, err, cmd->resp[0], cmd->resp[1],
+		 cmd->resp[2], cmd->resp[3]);
 
 	if (err && cmd->retries) {
 		cmd->retries--;
@@ -102,8 +97,8 @@ EXPORT_SYMBOL(mmc_request_done);
 void
 mmc_start_request(struct mmc_host *host, struct mmc_request *mrq)
 {
-	DBG("MMC: starting cmd %02x arg %08x flags %08x\n",
-	    mrq->cmd->opcode, mrq->cmd->arg, mrq->cmd->flags);
+	pr_debug("MMC: starting cmd %02x arg %08x flags %08x\n",
+		 mrq->cmd->opcode, mrq->cmd->arg, mrq->cmd->flags);
 
 	WARN_ON(host->card_busy == NULL);
 
@@ -976,8 +971,8 @@ static unsigned int mmc_calculate_clock(struct mmc_host *host)
 		if (!mmc_card_dead(card) && max_dtr > card->csd.max_dtr)
 			max_dtr = card->csd.max_dtr;
 
-	DBG("MMC: selected %d.%03dMHz transfer rate\n",
-	    max_dtr / 1000000, (max_dtr / 1000) % 1000);
+	pr_debug("MMC: selected %d.%03dMHz transfer rate\n",
+		 max_dtr / 1000000, (max_dtr / 1000) % 1000);
 
 	return max_dtr;
 }

drivers/mmc/mmci.c

@@ -33,12 +33,8 @@
 
 #define DRIVER_NAME "mmci-pl18x"
 
-#ifdef CONFIG_MMC_DEBUG
 #define DBG(host,fmt,args...)	\
 	pr_debug("%s: %s: " fmt, mmc_hostname(host->mmc), __func__ , args)
-#else
-#define DBG(host,fmt,args...)	do { } while (0)
-#endif
 
 static unsigned int fmax = 515633;
 

drivers/mmc/omap.c

@@ -12,11 +12,6 @@
  */
 
 #include <linux/config.h>
-
-#ifdef CONFIG_MMC_DEBUG
-#define DEBUG	/* for dev_dbg(), pr_debug(), etc */
-#endif
-
 #include <linux/module.h>
 #include <linux/moduleparam.h>
 #include <linux/init.h>

drivers/mmc/pxamci.c

@@ -37,12 +37,6 @@
 
 #include "pxamci.h"
 
-#ifdef CONFIG_MMC_DEBUG
-#define DBG(x...)	printk(KERN_DEBUG x)
-#else
-#define DBG(x...)	do { } while (0)
-#endif
-
 #define DRIVER_NAME	"pxa2xx-mci"
 
 #define NR_SG	1
@@ -206,7 +200,7 @@ static void pxamci_start_cmd(struct pxamci_host *host, struct mmc_command *cmd,
 
 static void pxamci_finish_request(struct pxamci_host *host, struct mmc_request *mrq)
 {
-	DBG("PXAMCI: request done\n");
+	pr_debug("PXAMCI: request done\n");
 	host->mrq = NULL;
 	host->cmd = NULL;
 	host->data = NULL;
@@ -252,7 +246,7 @@ static int pxamci_cmd_done(struct pxamci_host *host, unsigned int stat)
 			if ((cmd->resp[0] & 0x80000000) == 0)
 				cmd->error = MMC_ERR_BADCRC;
 		} else {
-			DBG("ignoring CRC from command %d - *risky*\n",cmd->opcode);
+			pr_debug("ignoring CRC from command %d - *risky*\n",cmd->opcode);
 		}
 #else
 		cmd->error = MMC_ERR_BADCRC;
@@ -317,12 +311,12 @@ static irqreturn_t pxamci_irq(int irq, void *devid, struct pt_regs *regs)
 
 	ireg = readl(host->base + MMC_I_REG);
 
-	DBG("PXAMCI: irq %08x\n", ireg);
+	pr_debug("PXAMCI: irq %08x\n", ireg);
 
 	if (ireg) {
 		unsigned stat = readl(host->base + MMC_STAT);
 
-		DBG("PXAMCI: stat %08x\n", stat);
+		pr_debug("PXAMCI: stat %08x\n", stat);
 
 		if (ireg & END_CMD_RES)
 			handled |= pxamci_cmd_done(host, stat);
@@ -376,9 +370,9 @@ static void pxamci_set_ios(struct mmc_host *mmc, struct mmc_ios *ios)
 {
 	struct pxamci_host *host = mmc_priv(mmc);
 
-	DBG("pxamci_set_ios: clock %u power %u vdd %u.%02u\n",
-	    ios->clock, ios->power_mode, ios->vdd / 100,
-	    ios->vdd % 100);
+	pr_debug("pxamci_set_ios: clock %u power %u vdd %u.%02u\n",
+		 ios->clock, ios->power_mode, ios->vdd / 100,
+		 ios->vdd % 100);
 
 	if (ios->clock) {
 		unsigned int clk = CLOCKRATE / ios->clock;
@@ -405,8 +399,8 @@ static void pxamci_set_ios(struct mmc_host *mmc, struct mmc_ios *ios)
 			host->cmdat |= CMDAT_INIT;
 	}
 
-	DBG("pxamci_set_ios: clkrt = %x cmdat = %x\n",
-	    host->clkrt, host->cmdat);
+	pr_debug("pxamci_set_ios: clkrt = %x cmdat = %x\n",
+		 host->clkrt, host->cmdat);
 }
 
 static struct mmc_host_ops pxamci_ops = {

drivers/mmc/sdhci.c

@@ -31,12 +31,8 @@
 
 #define BUGMAIL "<sdhci-devel@list.drzeus.cx>"
 
-#ifdef CONFIG_MMC_DEBUG
 #define DBG(f, x...) \
-	printk(KERN_DEBUG DRIVER_NAME " [%s()]: " f, __func__,## x)
-#else
-#define DBG(f, x...) do { } while (0)
-#endif
+	pr_debug(DRIVER_NAME " [%s()]: " f, __func__,## x)
 
 static const struct pci_device_id pci_ids[] __devinitdata = {
 	/* handle any SD host controller */

drivers/mmc/wbsd.c

@@ -44,15 +44,10 @@
 #define DRIVER_NAME "wbsd"
 #define DRIVER_VERSION "1.5"
 
-#ifdef CONFIG_MMC_DEBUG
 #define DBG(x...) \
-	printk(KERN_DEBUG DRIVER_NAME ": " x)
+	pr_debug(DRIVER_NAME ": " x)
 #define DBGF(f, x...) \
-	printk(KERN_DEBUG DRIVER_NAME " [%s()]: " f, __func__ , ##x)
-#else
-#define DBG(x...)	do { } while (0)
-#define DBGF(x...)	do { } while (0)
-#endif
+	pr_debug(DRIVER_NAME " [%s()]: " f, __func__ , ##x)
 
 /*
  * Device resources