ata: fix sparse warning in libata.h
Avoids lots of these, also is more readable.
include/linux/libata.h:1210:13: warning: potentially expensive pointer subtraction
Change the subtraction to addition on the other side of the comparison.
Thanks to Christer Weinigel for the suggestion.
Signed-off-by: Harvey Harrison <harvey.harrison@gmail.com>
Acked-by: Tejun Heo <htejun@gmail.com>
Signed-off-by: Jeff Garzik <jeff@garzik.org>
diff --git a/include/linux/libata.h b/include/linux/libata.h
index 2e098f9..ce7603a 100644
--- a/include/linux/libata.h
+++ b/include/linux/libata.h
@@ -1197,7 +1197,7 @@
return ap->pmp_link;
}
- if (++link - ap->pmp_link < ap->nr_pmp_links)
+ if (++link < ap->nr_pmp_links + ap->pmp_link)
return link;
return NULL;
}