- 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 <ge...@linux-m68k.org>
---
 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

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