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

[Cédric Augonnet]

2007/7/22, Cédric Augonnet <cedric.augonnet@xxxxxxxxx>:
> 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

(forgot to cc the maintainer, sorry ...)
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");