[PATCH] s390: warnings.

Remove some warnings.

arch/s390/kernel/smp.c

@@ -274,7 +274,7 @@ void machine_power_off_smp(void)
 
 void do_ext_call_interrupt(struct pt_regs *regs, __u16 code)
 {
-        int bits;
+        unsigned long bits;
 
         /*
          * handle bit signal external calls
@@ -282,9 +282,7 @@ void do_ext_call_interrupt(struct pt_regs *regs, __u16 code)
          * For the ec_schedule signal we have to do nothing. All the work
          * is done automatically when we return from the interrupt.
          */
-        do {
-                bits = atomic_read(&S390_lowcore.ext_call_fast);
-        } while (atomic_compare_and_swap(bits,0,&S390_lowcore.ext_call_fast));
+	bits = xchg(&S390_lowcore.ext_call_fast, 0);
 
 	if (test_bit(ec_call_function, &bits)) 
 		do_call_function();
@@ -296,13 +294,12 @@ void do_ext_call_interrupt(struct pt_regs *regs, __u16 code)
  */
 static sigp_ccode smp_ext_bitcall(int cpu, ec_bit_sig sig)
 {
-        struct _lowcore *lowcore = lowcore_ptr[cpu];
         sigp_ccode ccode;
 
         /*
          * Set signaling bit in lowcore of target cpu and kick it
          */
-        atomic_set_mask(1<<sig, &lowcore->ext_call_fast);
+	set_bit(sig, (unsigned long *) &lowcore_ptr[cpu]->ext_call_fast);
         ccode = signal_processor(cpu, sigp_external_call);
         return ccode;
 }
@@ -323,7 +320,7 @@ static void smp_ext_bitcall_others(ec_bit_sig sig)
                 /*
                  * Set signaling bit in lowcore of target cpu and kick it
                  */
-                atomic_set_mask(1<<sig, &lowcore->ext_call_fast);
+		set_bit(sig, (unsigned long *) &lowcore_ptr[i]->ext_call_fast);
                 while (signal_processor(i, sigp_external_call) == sigp_busy)
 			udelay(10);
         }

arch/s390/kernel/time.c

@@ -140,7 +140,6 @@ static inline __u32 div64_32(__u64 dividend, __u32 divisor)
  */
 static void do_comparator_interrupt(struct pt_regs *regs, __u16 error_code)
 {
-	int cpu = smp_processor_id();
 	__u64 tmp;
 	__u32 ticks;
 

arch/s390/mm/init.c

@@ -188,7 +188,7 @@ void free_initmem(void)
 		free_page(addr);
 		totalram_pages++;
         }
-        printk ("Freeing unused kernel memory: %dk freed\n",
+        printk ("Freeing unused kernel memory: %ldk freed\n",
 		((unsigned long)&__init_end - (unsigned long)&__init_begin) >> 10);
 }
 

arch/s390x/kernel/time.c

@@ -126,7 +126,6 @@ void do_settimeofday(struct timeval *tv)
  */
 static void do_comparator_interrupt(struct pt_regs *regs, __u16 error_code)
 {
-	int cpu = smp_processor_id();
 	__u64 tmp;
 	__u32 ticks;
 

include/asm-s390/lowcore.h

@@ -136,7 +136,7 @@ struct _lowcore
 
         /* SMP info area: defined by DJB */
         __u64        jiffy_timer;              /* 0xc80 */
-	atomic_t     ext_call_fast;            /* 0xc88 */
+	__u32        ext_call_fast;            /* 0xc88 */
         __u8         pad11[0xe00-0xc8c];       /* 0xc8c */
 
         /* 0xe00 is used as indicator for dump tools */