[PATCH] staging: sm750fb: rename macro roundedDiv to rounded_div in ddk750_chip.c

[PATCH] staging: sm750fb: rename macro roundedDiv to rounded_div in ddk750_chip.c

[Moshe Green]

Rename CamelCased macro roundedDiv to rounded_div.

This issue was found by checkpatch.pl

Signed-off-by: Moshe Green <mgmoshes@gmail.com>
---
 drivers/staging/sm750fb/ddk750_chip.c | 6 +++---
 1 file changed, 3 insertions(+), 3 deletions(-)

diff --git a/drivers/staging/sm750fb/ddk750_chip.c b/drivers/staging/sm750fb/ddk750_chip.c
index 3a0afe1..e4efe91 100644
--- a/drivers/staging/sm750fb/ddk750_chip.c
+++ b/drivers/staging/sm750fb/ddk750_chip.c
@@ -7,7 +7,7 @@
 #include "ddk750_power.h"
 
 /* n / d + 1 / 2 = (2n + d) / 2d */
-#define roundedDiv(num, denom)	((2 * (num) + (denom)) / (2 * (denom)))
+#define rounded_div(num, denom)	((2 * (num) + (denom)) / (2 * (denom)))
 #define MHz(x) ((x) * 1000000)
 
 logical_chip_type_t sm750_get_chip_type(void)
@@ -102,7 +102,7 @@ static void setMemoryClock(unsigned int frequency)
 			frequency = MHz(336);
 
 		/* Calculate the divisor */
-		divisor = roundedDiv(get_mxclk_freq(), frequency);
+		divisor = rounded_div(get_mxclk_freq(), frequency);
 
 		/* Set the corresponding divisor in the register. */
 		reg = PEEK32(CURRENT_GATE) & ~CURRENT_GATE_M2XCLK_MASK;
@@ -152,7 +152,7 @@ static void setMasterClock(unsigned int frequency)
 			frequency = MHz(190);
 
 		/* Calculate the divisor */
-		divisor = roundedDiv(get_mxclk_freq(), frequency);
+		divisor = rounded_div(get_mxclk_freq(), frequency);
 
 		/* Set the corresponding divisor in the register. */
 		reg = PEEK32(CURRENT_GATE) & ~CURRENT_GATE_MCLK_MASK;
-- 
2.7.4

Re: [PATCH] staging: sm750fb: rename macro roundedDiv to rounded_div in ddk750_chip.c

[Greg KH]

On Sun, Oct 02, 2016 at 08:48:32AM +0300, Moshe Green wrote:
> Rename CamelCased macro roundedDiv to rounded_div.
> 
> This issue was found by checkpatch.pl
> 
> Signed-off-by: Moshe Green <mgmoshes@gmail.com>
> ---
>  drivers/staging/sm750fb/ddk750_chip.c | 6 +++---
>  1 file changed, 3 insertions(+), 3 deletions(-)
> 
> diff --git a/drivers/staging/sm750fb/ddk750_chip.c b/drivers/staging/sm750fb/ddk750_chip.c
> index 3a0afe1..e4efe91 100644
> --- a/drivers/staging/sm750fb/ddk750_chip.c
> +++ b/drivers/staging/sm750fb/ddk750_chip.c
> @@ -7,7 +7,7 @@
>  #include "ddk750_power.h"
>  
>  /* n / d + 1 / 2 = (2n + d) / 2d */
> -#define roundedDiv(num, denom)	((2 * (num) + (denom)) / (2 * (denom)))
> +#define rounded_div(num, denom)	((2 * (num) + (denom)) / (2 * (denom)))

Shouldn't you use the in-kernel function for this instead?

Re: [PATCH] staging: sm750fb: rename macro roundedDiv to rounded_div in ddk750_chip.c

[Moshe Green]

On Sun, Oct 02, 2016 at 11:47:47AM +0200, Greg KH wrote:
> On Sun, Oct 02, 2016 at 08:48:32AM +0300, Moshe Green wrote:
> > Rename CamelCased macro roundedDiv to rounded_div.
> > 
> > This issue was found by checkpatch.pl
> > 
> > Signed-off-by: Moshe Green <mgmoshes@gmail.com>
> > ---
> >  drivers/staging/sm750fb/ddk750_chip.c | 6 +++---
> >  1 file changed, 3 insertions(+), 3 deletions(-)
> > 
> > diff --git a/drivers/staging/sm750fb/ddk750_chip.c b/drivers/staging/sm750fb/ddk750_chip.c
> > index 3a0afe1..e4efe91 100644
> > --- a/drivers/staging/sm750fb/ddk750_chip.c
> > +++ b/drivers/staging/sm750fb/ddk750_chip.c
> > @@ -7,7 +7,7 @@
> >  #include "ddk750_power.h"
> >  
> >  /* n / d + 1 / 2 = (2n + d) / 2d */
> > -#define roundedDiv(num, denom)	((2 * (num) + (denom)) / (2 * (denom)))
> > +#define rounded_div(num, denom)	((2 * (num) + (denom)) / (2 * (denom)))
> 
> Shouldn't you use the in-kernel function for this instead?

(I thought briefly of looking for an existing implementation but
then chose not to since I wanted to minimize the functional changes in my patches
for the time being. Additionally I was wary of using a different implementation for a
division operation.)

I'll submit a patch that will replace the local implemetaion of rounded
division with the in-kernel implementation (I'm assuming you're
referring to the DIV_ROUND_CLOSEST macro from include/linux/kernel.h).

Thanks
Moshe Green