On Thu, Mar 30, 2017 at 08:38:35AM +1100, NeilBrown wrote:
> On Thu, Mar 30 2017, jes.sorensen@xxxxxxxxx wrote:
>
> > Gioh Kim <gi-oh.kim@xxxxxxxxxxxxxxxx> writes:
> >> Remove a boolean expression in switch condition
> >> to prevent compile error of some compilers.
> >
> > Please be specific, which compile is unable to handle this?
> >
> >> Signed-off-by: Gioh Kim <gi-oh.kim@xxxxxxxxxxxxxxxx>
> >> ---
> >> mdadm.c | 6 +++---
> >> 1 file changed, 3 insertions(+), 3 deletions(-)
> >>
> >> diff --git a/mdadm.c b/mdadm.c
> >> index 08ddcab..a98a051 100644
> >> --- a/mdadm.c
> >> +++ b/mdadm.c
> >> @@ -1905,11 +1905,11 @@ static int misc_list(struct mddev_dev *devlist,
> >> rv |= SetAction(dv->devname, c->action);
> >> continue;
> >> }
> >> - switch(dv->devname[0] == '/') {
> >> - case 0:
> >> + switch(dv->devname[0]) {
> >> + default:
> >> mdfd = open_dev(dv->devname);
> >> if (mdfd >= 0) break;
> >> - case 1:
> >> + case '/':
> >> mdfd = open_mddev(dv->devname, 1);
> >> }
> >> if (mdfd>=0) {
> >
> > While I agree the original code is ugly, I am not convinced your
> > replacement is a lot prettier.
> >
>
> Maybe
>
> if (dv->devname[0] == '/' ||
> (mdfd = open_dev(dv->devname)) < 0)
> mdfd = open_mddev(dv->devname, 1);
>
> ??
> NeilBrown
Yes, the initial version I thought was:
if (dev->devname[0] != '/')
mdfd = open_dev(dv->devname);
if (dev->devname[0] == '/' || mdfd < 0)
mdfd = open_mddev(dv->devname, 1);
But I thought you have a reason to use switch-case expression,
so I kept switch-case.
If you agree, I'll send v2 patch using if-expression.
--
Best regards,
Gi-Oh Kim
TEL: 0176 2697 8962
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