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Groups > linux.kernel > #1614097 > unrolled thread

[PATCH 2/3] staging: iio: frequency: Remove useless type conversion

Started bysimran singhal <singhalsimran0@gmail.com>
First post2017-03-31 17:20 +0200
Last post2017-04-02 10:50 +0200
Articles 2 — 2 participants

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  [PATCH 2/3] staging: iio: frequency: Remove useless type conversion simran singhal <singhalsimran0@gmail.com> - 2017-03-31 17:20 +0200
    Re: [PATCH 2/3] staging: iio: frequency: Remove useless type  conversion Jonathan Cameron <jic23@kernel.org> - 2017-04-02 10:50 +0200

#1614097 — [PATCH 2/3] staging: iio: frequency: Remove useless type conversion

Fromsimran singhal <singhalsimran0@gmail.com>
Date2017-03-31 17:20 +0200
Subject[PATCH 2/3] staging: iio: frequency: Remove useless type conversion
Message-ID<tr6vg-6i4-9@gated-at.bofh.it>
Some type conversions like casting a pointer to a pointer of same type,
casting to the original type using addressof(&) operator etc. are not
needed. Therefore, remove them. Done using coccinelle:

@@
type t;
t *p;
t a;
@@
(
- (t)(a)
+ a
|
- (t *)(p)
+ p
|
- (t *)(&a)
+ &a
)

Signed-off-by: simran singhal <singhalsimran0@gmail.com>
---
 drivers/staging/iio/frequency/ad9832.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/staging/iio/frequency/ad9832.c b/drivers/staging/iio/frequency/ad9832.c
index 425b8ab..01bdf8e 100644
--- a/drivers/staging/iio/frequency/ad9832.c
+++ b/drivers/staging/iio/frequency/ad9832.c
@@ -119,7 +119,7 @@ struct ad9832_state {
 static unsigned long ad9832_calc_freqreg(unsigned long mclk, unsigned long fout)
 {
 	unsigned long long freqreg = (u64)fout *
-				     (u64)((u64)1L << AD9832_FREQ_BITS);
+				     (u64)1L << AD9832_FREQ_BITS;
 	do_div(freqreg, mclk);
 	return freqreg;
 }
-- 
2.7.4

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#1614666 — Re: [PATCH 2/3] staging: iio: frequency: Remove useless type conversion

FromJonathan Cameron <jic23@kernel.org>
Date2017-04-02 10:50 +0200
SubjectRe: [PATCH 2/3] staging: iio: frequency: Remove useless type conversion
Message-ID<trJmV-6yC-9@gated-at.bofh.it>
In reply to#1614097
On 31/03/17 16:08, simran singhal wrote:
> Some type conversions like casting a pointer to a pointer of same type,
> casting to the original type using addressof(&) operator etc. are not
> needed. Therefore, remove them. Done using coccinelle:
> 
> @@
> type t;
> t *p;
> t a;
> @@
> (
> - (t)(a)
> + a
> |
> - (t *)(p)
> + p
> |
> - (t *)(&a)
> + &a
> )
> 
> Signed-off-by: simran singhal <singhalsimran0@gmail.com>
driver name in title please, plus a patch description rather more tailored
to the patch. 

> ---
>  drivers/staging/iio/frequency/ad9832.c | 2 +-
>  1 file changed, 1 insertion(+), 1 deletion(-)
> 
> diff --git a/drivers/staging/iio/frequency/ad9832.c b/drivers/staging/iio/frequency/ad9832.c
> index 425b8ab..01bdf8e 100644
> --- a/drivers/staging/iio/frequency/ad9832.c
> +++ b/drivers/staging/iio/frequency/ad9832.c
> @@ -119,7 +119,7 @@ struct ad9832_state {
>  static unsigned long ad9832_calc_freqreg(unsigned long mclk, unsigned long fout)
>  {
>  	unsigned long long freqreg = (u64)fout *
> -				     (u64)((u64)1L << AD9832_FREQ_BITS);
> +				     (u64)1L << AD9832_FREQ_BITS;
>  	do_div(freqreg, mclk);
>  	return freqreg;
>  }
> 

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