Message ID | 20140509224508.27912.qmail@ns.horizon.com (mailing list archive) |
---|---|
State | New, archived |
Headers | show |
Tao's Oracle email address was obsolete. On 05/10/2014 06:45 AM, George Spelvin wrote: > There are two standard techniques for dereferencing structures pointed > to by void *: cast to the right type each time they're used, or assign > to local variables of the right type. > > But there's no need to do *both*. > > Signed-off-by: George Spelvin <linux@horizon.com> > --- > Obviously, this makes zero difference to the generated code, but > it's prettier. Indeed :), the patch looks good to me. Reviewed-by: Jie Liu <jeff.liu@oracle.com> Thanks, -Jeff
diff --git a/fs/ocfs2/refcounttree.c b/fs/ocfs2/refcounttree.c index 6ba4bcbc47..714e53b9cc 100644 --- a/fs/ocfs2/refcounttree.c +++ b/fs/ocfs2/refcounttree.c @@ -1408,10 +1408,9 @@ static void swap_refcount_rec(void *a, void *b, int size) { struct ocfs2_refcount_rec *l = a, *r = b, tmp; - tmp = *(struct ocfs2_refcount_rec *)l; - *(struct ocfs2_refcount_rec *)l = - *(struct ocfs2_refcount_rec *)r; - *(struct ocfs2_refcount_rec *)r = tmp; + tmp = *l; + *l = *r; + *r = tmp; } /*
There are two standard techniques for dereferencing structures pointed to by void *: cast to the right type each time they're used, or assign to local variables of the right type. But there's no need to do *both*. Signed-off-by: George Spelvin <linux@horizon.com> --- Obviously, this makes zero difference to the generated code, but it's prettier.