[Outreachy kernel] [PATCH v2] Staging: irda: Don't use assignment inside if statement

[Srishti Sharma]

On Sat, Sep 16, 2017 at 2:39 AM, Julia Lawall <julia.lawall at lip6.fr> wrote:
>
>
> On Sat, 16 Sep 2017, Srishti Sharma wrote:
>
>> On Sat, Sep 16, 2017 at 1:30 AM, Julia Lawall <julia.lawall at lip6.fr> wrote:
>> >
>> >
>> > On Sat, 16 Sep 2017, Srishti Sharma wrote:
>> >
>> >> Write assignment statement outside the if statement. Done using
>> >> the following semantic patch by coccinelle.
>> >>
>> >> @@
>> >> identifier E;
>> >> expression F;
>> >> statement S;
>> >> @@
>> >>
>> >> -if((E = F))
>> >> +E = F;
>> >> +if(E)
>> >>   S
>> >>
>> >> Signed-off-by: Srishti Sharma <srishtishar at gmail.com>
>> >
>> > Acked-by: Julia Lawall <julia.lawall at lip6.fr>
>>
>> Have sent a patchset for this instead .
>
> Thanks.  Actually, you should have copied the ack.

Oh.. Sorry didn't realise I could do that :)

Regards,
Srishti

>
> julia
>
>>
>> Regards,
>> Srishti
>> >
>> >> ---
>> >> Changes in v2:
>> >>  -Semicolon was missing in one of the statements of the
>> >>   semantic patch
>> >>
>> >>  drivers/staging/irda/drivers/irda-usb.c | 4 ++--
>> >>  drivers/staging/irda/drivers/mcs7780.c  | 9 ++++++---
>> >>  drivers/staging/irda/net/irqueue.c      | 3 ++-
>> >>  3 files changed, 10 insertions(+), 6 deletions(-)
>> >>
>> >> diff --git a/drivers/staging/irda/drivers/irda-usb.c b/drivers/staging/irda/drivers/irda-usb.c
>> >> index 723e49b..82bfc05 100644
>> >> --- a/drivers/staging/irda/drivers/irda-usb.c
>> >> +++ b/drivers/staging/irda/drivers/irda-usb.c
>> >> @@ -334,9 +334,9 @@ static void irda_usb_change_speed_xbofs(struct irda_usb_cb *self)
>> >>       urb->transfer_flags = 0;
>> >>
>> >>       /* Irq disabled -> GFP_ATOMIC */
>> >> -     if ((ret = usb_submit_urb(urb, GFP_ATOMIC))) {
>> >> +     ret = usb_submit_urb(urb, GFP_ATOMIC);
>> >> +     if (ret)
>> >>               net_warn_ratelimited("%s(), failed Speed URB\n", __func__);
>> >> -     }
>> >>  }
>> >>
>> >>  /*------------------------------------------------------------------*/
>> >> diff --git a/drivers/staging/irda/drivers/mcs7780.c b/drivers/staging/irda/drivers/mcs7780.c
>> >> index c3f0b25..2b674d5 100644
>> >> --- a/drivers/staging/irda/drivers/mcs7780.c
>> >> +++ b/drivers/staging/irda/drivers/mcs7780.c
>> >> @@ -605,19 +605,22 @@ static int mcs_speed_change(struct mcs_cb *mcs)
>> >>       if (mcs->new_speed <= 115200) {
>> >>               rval &= ~MCS_FIR;
>> >>
>> >> -             if ((rst = (mcs->speed > 115200)))
>> >> +             rst = (mcs->speed > 115200);
>> >> +             if (rst)
>> >>                       mcs_set_reg(mcs, MCS_MINRXPW_REG, 0);
>> >>
>> >>       } else if (mcs->new_speed <= 1152000) {
>> >>               rval &= ~MCS_FIR;
>> >>
>> >> -             if ((rst = !(mcs->speed == 576000 || mcs->speed == 1152000)))
>> >> +             rst = !(mcs->speed == 576000 || mcs->speed == 1152000);
>> >> +             if (rst)
>> >>                       mcs_set_reg(mcs, MCS_MINRXPW_REG, 5);
>> >>
>> >>       } else {
>> >>               rval |= MCS_FIR;
>> >>
>> >> -             if ((rst = (mcs->speed != 4000000)))
>> >> +             rst = (mcs->speed != 4000000);
>> >> +             if (rst)
>> >>                       mcs_set_reg(mcs, MCS_MINRXPW_REG, 5);
>> >>
>> >>       }
>> >> diff --git a/drivers/staging/irda/net/irqueue.c b/drivers/staging/irda/net/irqueue.c
>> >> index 160dc89..5aab072 100644
>> >> --- a/drivers/staging/irda/net/irqueue.c
>> >> +++ b/drivers/staging/irda/net/irqueue.c
>> >> @@ -217,7 +217,8 @@ static __u32 hash( const char* name)
>> >>
>> >>       while(*name) {
>> >>               h = (h<<4) + *name++;
>> >> -             if ((g = (h & 0xf0000000)))
>> >> +             g = (h & 0xf0000000);
>> >> +             if (g)
>> >>                       h ^=g>>24;
>> >>               h &=~g;
>> >>       }
>> >> --
>> >> 2.7.4
>> >>
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