[PATCH 03/22] m68k/mac: via - Modernize printing of kernel messages

[Geert Uytterhoeven]

  - Introduce helpers for printing debug messages, incl. dummies for
    validating format strings when debugging is disabled,
  - Convert from printk() to pr_*(),
  - Add missing continuations, to fix user-visible breakage,
  - Drop superfluous casts.

Fixes: 4bcc595ccd80decb ("printk: reinstate KERN_CONT for printing continuation lines")
Signed-off-by: Geert Uytterhoeven <geert@xxxxxxxxxxxxxx>
---
 arch/m68k/mac/via.c | 54 ++++++++++++++++++++++++++---------------------------
 1 file changed, 27 insertions(+), 27 deletions(-)

diff --git a/arch/m68k/mac/via.c b/arch/m68k/mac/via.c
index 920ff63d4a81d77a..7c53b10d93817d9c 100644
--- a/arch/m68k/mac/via.c
+++ b/arch/m68k/mac/via.c
@@ -36,6 +36,12 @@
 #include <asm/mac_psc.h>
 #include <asm/mac_oss.h>
 
+#ifdef DEBUG_IRQUSE
+#define pr_irq(fmt, ...) printk(KERN_DEBUG pr_fmt(fmt), ##__VA_ARGS__)
+#else
+#define pr_irq(fmt, ...) no_printk(KERN_DEBUG pr_fmt(fmt), ##__VA_ARGS__)
+#endif
+
 volatile __u8 *via1, *via2;
 int rbv_present;
 int via_alt_mapping;
@@ -168,15 +174,15 @@ void __init via_init(void)
 			panic("UNKNOWN VIA TYPE");
 	}
 
-	printk(KERN_INFO "VIA1 at %p is a 6522 or clone\n", via1);
+	pr_info("VIA1 at %p is a 6522 or clone\n", via1);
 
-	printk(KERN_INFO "VIA2 at %p is ", via2);
+	pr_info("VIA2 at %p is ", via2);
 	if (rbv_present) {
-		printk("an RBV\n");
+		pr_cont("an RBV\n");
 	} else if (oss_present) {
-		printk("an OSS\n");
+		pr_cont("an OSS\n");
 	} else {
-		printk("a 6522 or clone\n");
+		pr_cont("a 6522 or clone\n");
 	}
 
 #ifdef DEBUG_VIA
@@ -299,24 +305,22 @@ void __init via_init_clock(irq_handler_t func)
 
 void via_debug_dump(void)
 {
-	printk(KERN_DEBUG "VIA1: DDRA = 0x%02X DDRB = 0x%02X ACR = 0x%02X\n",
-		(uint) via1[vDirA], (uint) via1[vDirB], (uint) via1[vACR]);
-	printk(KERN_DEBUG "         PCR = 0x%02X  IFR = 0x%02X IER = 0x%02X\n",
-		(uint) via1[vPCR], (uint) via1[vIFR], (uint) via1[vIER]);
+	pr_debug("VIA1: DDRA = 0x%02X DDRB = 0x%02X ACR = 0x%02X\n",
+		 via1[vDirA], via1[vDirB], via1[vACR]);
+	pr_debug("       PCR = 0x%02X  IFR = 0x%02X IER = 0x%02X\n",
+		 via1[vPCR], via1[vIFR], via1[vIER]);
 	if (oss_present) {
-		printk(KERN_DEBUG "VIA2: <OSS>\n");
+		pr_debug("VIA2: <OSS>\n");
 	} else if (rbv_present) {
-		printk(KERN_DEBUG "VIA2:  IFR = 0x%02X  IER = 0x%02X\n",
-			(uint) via2[rIFR], (uint) via2[rIER]);
-		printk(KERN_DEBUG "      SIFR = 0x%02X SIER = 0x%02X\n",
-			(uint) via2[rSIFR], (uint) via2[rSIER]);
+		pr_debug("VIA2:  IFR = 0x%02X  IER = 0x%02X\n", via2[rIFR],
+			 via2[rIER]);
+		pr_debug("      SIFR = 0x%02X SIER = 0x%02X\n", via2[rSIFR],
+			 via2[rSIER]);
 	} else {
-		printk(KERN_DEBUG "VIA2: DDRA = 0x%02X DDRB = 0x%02X ACR = 0x%02X\n",
-			(uint) via2[vDirA], (uint) via2[vDirB],
-			(uint) via2[vACR]);
-		printk(KERN_DEBUG "         PCR = 0x%02X  IFR = 0x%02X IER = 0x%02X\n",
-			(uint) via2[vPCR],
-			(uint) via2[vIFR], (uint) via2[vIER]);
+		pr_debug("VIA2: DDRA = 0x%02X DDRB = 0x%02X ACR = 0x%02X\n",
+			 via2[vDirA], via2[vDirB], via2[vACR]);
+		pr_debug("       PCR = 0x%02X  IFR = 0x%02X IER = 0x%02X\n",
+			 via2[vPCR], via2[vIFR], via2[vIER]);
 	}
 }
 
@@ -362,7 +366,7 @@ int via_get_cache_disable(void)
 {
 	/* Safeguard against being called accidentally */
 	if (!via2) {
-		printk(KERN_ERR "via_get_cache_disable called on a non-VIA machine!\n");
+		pr_err("via_get_cache_disable called on a non-VIA machine!\n");
 		return 1;
 	}
 
@@ -550,9 +554,7 @@ void via_irq_enable(int irq) {
 	int irq_src	= IRQ_SRC(irq);
 	int irq_idx	= IRQ_IDX(irq);
 
-#ifdef DEBUG_IRQUSE
-	printk(KERN_DEBUG "via_irq_enable(%d)\n", irq);
-#endif
+	pr_irq("via_irq_enable(%d)\n", irq);
 
 	if (irq_src == 1) {
 		via1[vIER] = IER_SET_BIT(irq_idx);
@@ -582,9 +584,7 @@ void via_irq_disable(int irq) {
 	int irq_src	= IRQ_SRC(irq);
 	int irq_idx	= IRQ_IDX(irq);
 
-#ifdef DEBUG_IRQUSE
-	printk(KERN_DEBUG "via_irq_disable(%d)\n", irq);
-#endif
+	pr_irq("via_irq_disable(%d)\n", irq);
 
 	if (irq_src == 1) {
 		via1[vIER] = IER_CLR_BIT(irq_idx);
-- 
1.9.1