Re: voyager_{thread,cat}.c compile warnings

[Cédric Augonnet]

Hi,

2007/7/21, Gabriel C <nix.or.die@xxxxxxxxxxxxxx>:
> Hi,
>
> I noticed this warnings on current git:
>
>
> ...
>
> arch/i386/mach-voyager/voyager_thread.c: In function 'thread':
> arch/i386/mach-voyager/voyager_thread.c:113: warning: no return statement in function returning non-void
>
> ...
>
> I think return 0; is missing on line 112 here.

I guess there is no use in always returning 0, simply not returning anything and
putting a void type might be cleaner, especially as this function
seems to never
return.

> arch/i386/mach-voyager/voyager_cat.c: In function 'voyager_cat_init':
> arch/i386/mach-voyager/voyager_cat.c:685: warning: comparison is always false due to limited range of data type
> arch/i386/mach-voyager/voyager_cat.c:755: warning: comparison is always false due to limited range of data type

Hum perhaps it does not like the comparision of a __u16 and an unsigned int ?

I enclose some dummy patch that should perhaps solve these issues,
could not test it as i don't have the hardware... just my 2 cents.
Don't know if casting is an
acceptable workaround though.

> Regards,
>
> Gabriel C

Cheers,
Cédric
Submitted by: Cedric Augonnet <cedric.augonnet@xxxxxxxxxxxx>
---
diff -urN a/arch/i386/mach-voyager/voyager_cat.c b/arch/i386/mach-voyager/voyager_cat.c
--- /home/gonnet/tmp/linux-2.6.22/arch/i386/mach-voyager/voyager_cat.c	2007-07-20 11:50:17.000000000 -0400
+++ linux-2.6.22/arch/i386/mach-voyager/voyager_cat.c	2007-07-22 11:24:34.000000000 -0400
@@ -682,7 +682,7 @@
 			outb(VOYAGER_CAT_END, CAT_CMD);
 			continue;
 		}
-		if(eprom_size > sizeof(eprom_buf)) {
+		if((unsigned)eprom_size > sizeof(eprom_buf)) {
 			printk("**WARNING**: Voyager insufficient size to read EPROM data, module 0x%x.  Need %d\n", i, eprom_size);
 			outb(VOYAGER_CAT_END, CAT_CMD);
 			continue;
@@ -752,7 +752,7 @@
 			outb(VOYAGER_CAT_END, CAT_CMD);
 			continue;
 		}
-		if(eprom_size > sizeof(eprom_buf)) {
+		if((unsigned)eprom_size > sizeof(eprom_buf)) {
 			printk("**WARNING**: Voyager insufficient size to read EPROM data, module 0x%x.  Need %d\n", i, eprom_size);
 			outb(VOYAGER_CAT_END, CAT_CMD);
 			continue;
diff -urN a/arch/i386/mach-voyager/voyager_thread.c b/arch/i386/mach-voyager/voyager_thread.c
--- /home/gonnet/tmp/linux-2.6.22/arch/i386/mach-voyager/voyager_thread.c	2007-07-20 11:50:17.000000000 -0400
+++ linux-2.6.22/arch/i386/mach-voyager/voyager_thread.c	2007-07-22 11:27:13.000000000 -0400
@@ -92,7 +92,7 @@
 	}
 }
 
-static int
+static void
 thread(void *unused)
 {
 	printk(KERN_NOTICE "Voyager starting monitor thread\n");