2020-03-20 18:15:10

by Oscar Carter

[permalink] [raw]
Subject: [PATCH] staging: vt6656: Use BIT() macro in vnt_mac_reg_bits_* functions

The last parameter in the functions vnt_mac_reg_bits_on and
vnt_mac_reg_bits_off defines the bits to set or unset. So, it's more
clear to use the BIT() macro instead of an hexadecimal value.

Signed-off-by: Oscar Carter <[email protected]>
---
drivers/staging/vt6656/baseband.c | 5 +++--
drivers/staging/vt6656/card.c | 4 +++-
drivers/staging/vt6656/main_usb.c | 3 ++-
3 files changed, 8 insertions(+), 4 deletions(-)

diff --git a/drivers/staging/vt6656/baseband.c b/drivers/staging/vt6656/baseband.c
index f18e059ce66b..a29d9f4f575e 100644
--- a/drivers/staging/vt6656/baseband.c
+++ b/drivers/staging/vt6656/baseband.c
@@ -22,6 +22,7 @@
*
*/

+#include <linux/bits.h>
#include "mac.h"
#include "baseband.h"
#include "rf.h"
@@ -468,7 +469,7 @@ int vnt_vt3184_init(struct vnt_private *priv)
if (ret)
goto end;

- ret = vnt_mac_reg_bits_on(priv, MAC_REG_PAPEDELAY, 0x01);
+ ret = vnt_mac_reg_bits_on(priv, MAC_REG_PAPEDELAY, BIT(0));
if (ret)
goto end;
} else if (priv->rf_type == RF_VT3226D0) {
@@ -477,7 +478,7 @@ int vnt_vt3184_init(struct vnt_private *priv)
if (ret)
goto end;

- ret = vnt_mac_reg_bits_on(priv, MAC_REG_PAPEDELAY, 0x01);
+ ret = vnt_mac_reg_bits_on(priv, MAC_REG_PAPEDELAY, BIT(0));
if (ret)
goto end;
}
diff --git a/drivers/staging/vt6656/card.c b/drivers/staging/vt6656/card.c
index 7958fc165462..dc3ab10eb630 100644
--- a/drivers/staging/vt6656/card.c
+++ b/drivers/staging/vt6656/card.c
@@ -26,6 +26,7 @@
*
*/

+#include <linux/bits.h>
#include "device.h"
#include "card.h"
#include "baseband.h"
@@ -63,7 +64,8 @@ void vnt_set_channel(struct vnt_private *priv, u32 connection_channel)
vnt_mac_reg_bits_on(priv, MAC_REG_MACCR, MACCR_CLRNAV);

/* Set Channel[7] = 0 to tell H/W channel is changing now. */
- vnt_mac_reg_bits_off(priv, MAC_REG_CHANNEL, 0xb0);
+ vnt_mac_reg_bits_off(priv, MAC_REG_CHANNEL,
+ (BIT(7) | BIT(5) | BIT(4)));

vnt_control_out(priv, MESSAGE_TYPE_SELECT_CHANNEL,
connection_channel, 0, 0, NULL);
diff --git a/drivers/staging/vt6656/main_usb.c b/drivers/staging/vt6656/main_usb.c
index 5e48b3ddb94c..1196b6e28c22 100644
--- a/drivers/staging/vt6656/main_usb.c
+++ b/drivers/staging/vt6656/main_usb.c
@@ -21,6 +21,7 @@
*/
#undef __NO_VERSION__

+#include <linux/bits.h>
#include <linux/etherdevice.h>
#include <linux/file.h>
#include "device.h"
@@ -370,7 +371,7 @@ static int vnt_init_registers(struct vnt_private *priv)
if (ret)
goto end;

- ret = vnt_mac_reg_bits_on(priv, MAC_REG_GPIOCTL0, 0x01);
+ ret = vnt_mac_reg_bits_on(priv, MAC_REG_GPIOCTL0, BIT(0));
if (ret)
goto end;

--
2.20.1


2020-03-23 07:33:52

by Dan Carpenter

[permalink] [raw]
Subject: Re: [PATCH] staging: vt6656: Use BIT() macro in vnt_mac_reg_bits_* functions

On Fri, Mar 20, 2020 at 07:13:26PM +0100, Oscar Carter wrote:
> +#include <linux/bits.h>
> #include "mac.h"
> #include "baseband.h"
> #include "rf.h"
> @@ -468,7 +469,7 @@ int vnt_vt3184_init(struct vnt_private *priv)
> if (ret)
> goto end;
>
> - ret = vnt_mac_reg_bits_on(priv, MAC_REG_PAPEDELAY, 0x01);
> + ret = vnt_mac_reg_bits_on(priv, MAC_REG_PAPEDELAY, BIT(0));

Everyone knows 0x01 is bit(0) already. This isn't more clear. It
should be a define instead of a magic number.

> @@ -63,7 +64,8 @@ void vnt_set_channel(struct vnt_private *priv, u32 connection_channel)
> vnt_mac_reg_bits_on(priv, MAC_REG_MACCR, MACCR_CLRNAV);
>
> /* Set Channel[7] = 0 to tell H/W channel is changing now. */
> - vnt_mac_reg_bits_off(priv, MAC_REG_CHANNEL, 0xb0);
> + vnt_mac_reg_bits_off(priv, MAC_REG_CHANNEL,
> + (BIT(7) | BIT(5) | BIT(4)));

This one especially is just a lot longer now but still not clear.

regards,
dan carpenter

2020-03-26 17:11:52

by Oscar Carter

[permalink] [raw]
Subject: Re: [PATCH] staging: vt6656: Use BIT() macro in vnt_mac_reg_bits_* functions

On Mon, Mar 23, 2020 at 10:32:14AM +0300, Dan Carpenter wrote:
> On Fri, Mar 20, 2020 at 07:13:26PM +0100, Oscar Carter wrote:
> > +#include <linux/bits.h>
> > #include "mac.h"
> > #include "baseband.h"
> > #include "rf.h"
> > @@ -468,7 +469,7 @@ int vnt_vt3184_init(struct vnt_private *priv)
> > if (ret)
> > goto end;
> >
> > - ret = vnt_mac_reg_bits_on(priv, MAC_REG_PAPEDELAY, 0x01);
> > + ret = vnt_mac_reg_bits_on(priv, MAC_REG_PAPEDELAY, BIT(0));
>
> Everyone knows 0x01 is bit(0) already. This isn't more clear. It
> should be a define instead of a magic number.
>
I agree. I create a new define for this case.

> > @@ -63,7 +64,8 @@ void vnt_set_channel(struct vnt_private *priv, u32 connection_channel)
> > vnt_mac_reg_bits_on(priv, MAC_REG_MACCR, MACCR_CLRNAV);
> >
> > /* Set Channel[7] = 0 to tell H/W channel is changing now. */
> > - vnt_mac_reg_bits_off(priv, MAC_REG_CHANNEL, 0xb0);
> > + vnt_mac_reg_bits_off(priv, MAC_REG_CHANNEL,
> > + (BIT(7) | BIT(5) | BIT(4)));
>
> This one especially is just a lot longer now but still not clear.
>
Like the previous one, i create a define. In this case to avoid the magic
number or the OR operation between BIT macros.

> regards,
> dan carpenter
>
I will make these changes and i will send and incremental patch with the
"Fixes:" tag due to the this patch has already been added to the staging-next
branch of the greg staging tree.

thanks,
oscar carter

2020-03-31 10:42:31

by Dan Carpenter

[permalink] [raw]
Subject: Re: [PATCH] staging: vt6656: Use BIT() macro in vnt_mac_reg_bits_* functions

On Thu, Mar 26, 2020 at 06:10:43PM +0100, Oscar Carter wrote:
> I will make these changes and i will send and incremental patch with the
> "Fixes:" tag due to the this patch has already been added to the staging-next
> branch of the greg staging tree.

Fixes is only for bug fixes, not style issues.

regards,
dan carpenter

2020-04-01 17:07:39

by Oscar Carter

[permalink] [raw]
Subject: Re: [PATCH] staging: vt6656: Use BIT() macro in vnt_mac_reg_bits_* functions

On Tue, Mar 31, 2020 at 01:41:30PM +0300, Dan Carpenter wrote:
> On Thu, Mar 26, 2020 at 06:10:43PM +0100, Oscar Carter wrote:
> > I will make these changes and i will send and incremental patch with the
> > "Fixes:" tag due to the this patch has already been added to the staging-next
> > branch of the greg staging tree.
>
> Fixes is only for bug fixes, not style issues.
>
Ok, thanks for the explanation.

> regards,
> dan carpenter
>
regards,
oscar carter