linuxkpi/sysfs.h: Cast arg2 through intptr_t to avoid GCC warning

The code compiles fine under Clang, but GCC on PPC is less permissive about
integer and pointer sizes.  (An intmax_t is clearly *large enough* to hold a
pointer value.)

Another follow-up to r290475.

Reported by:	jhibbits
Sponsored by:	EMC / Isilon Storage Division

diff --git a/sys/compat/linuxkpi/common/include/linux/sysfs.h b/sys/compat/linuxkpi/common/include/linux/sysfs.h
index a102d4391ff825a26819e556adc783f61d16fac4..68c6e9224d9f8d412be9e10a27cd135718f003bb 100644 (file)
--- a/sys/compat/linuxkpi/common/include/linux/sysfs.h
+++ b/sys/compat/linuxkpi/common/include/linux/sysfs.h
@@ -80,7 +80,7 @@ sysctl_handle_attr(SYSCTL_HANDLER_ARGS)
        ssize_t len;
 
        kobj = arg1;
-       attr = (struct attribute *)arg2;
+       attr = (struct attribute *)(intptr_t)arg2;
        if (kobj->ktype == NULL || kobj->ktype->sysfs_ops == NULL)
                return (ENODEV);
        buf = (char *)get_zeroed_page(GFP_KERNEL);