# \[PATCH 1/1\] wireless: in \_rtl92c\_phy\_calculate\_bit\_shift remove comparing bitmask against 1

- Subsystems: NETWORKING DRIVERS (WIRELESS), THE REST
- Maintainers: Johannes Berg, Linus Torvalds
- List: netdev
- 2 messages, 2 authors
- Page: https://ratatoskr.run/netdev/2012/01/3815212/t

## \[PATCH 1/1\] wireless: in \_rtl92c\_phy\_calculate\_bit\_shift remove comparing bitmask against 1

- From: Devendra.Naga \<hidden\>
- Date: 2012-01-30 10:01:40 
- Message: https://ratatoskr.run/netdev/2012/01/3815212.md

```text
From: "Devendra.Naga" <redacted>

in _rtl92c_phy_calculate_bit_shift everytime the right shifted bitmask
is AND with 1 and compared against 1. i.e.
        if ((bitmask >> i) & 0x1 == 1)
                break;
which in the if condition is anyway becomes a 1 or 0.

Signed-off-by: Devendra.Naga <redacted>
---
 drivers/net/wireless/rtlwifi/rtl8192c/phy_common.c |    2 +-
 1 files changed, 1 insertions(+), 1 deletions(-)

diff --git a/drivers/net/wireless/rtlwifi/rtl8192c/phy_common.c b/drivers/net/wireless/rtlwifi/rtl8192c/phy_common.c
index 22e998d..a76b223 100644
--- a/drivers/net/wireless/rtlwifi/rtl8192c/phy_common.c
+++ b/drivers/net/wireless/rtlwifi/rtl8192c/phy_common.c
@@ -177,7 +177,7 @@ u32 _rtl92c_phy_calculate_bit_shift(u32 bitmask)
 	u32 i;
 
 	for (i = 0; i <= 31; i++) {
-		if (((bitmask >> i) & 0x1) == 1)
+		if ((bitmask >> i) & 0x1)
 			break;
 	}
 	return i;
-- 
1.7.5.4
```

## Re: \[PATCH 1/1\] wireless: in \_rtl92c\_phy\_calculate\_bit\_shift remove comparing bitmask against 1

- From: Larry Finger \<hidden\>
- Date: 2012-01-30 23:36:56 
- Message: https://ratatoskr.run/netdev/2012/01/3815632.md

```text
On 01/30/2012 04:00 AM, Devendra.Naga wrote:
> From: "Devendra.Naga"<redacted>
>
> in _rtl92c_phy_calculate_bit_shift everytime the right shifted bitmask
> is AND with 1 and compared against 1. i.e.
>          if ((bitmask>>  i)&  0x1 == 1)
>                  break;
> which in the if condition is anyway becomes a 1 or 0.
>
> Signed-off-by: Devendra.Naga<redacted>

Once again, the patch is OK, but the subject is not good.

Larry

> ---
>   drivers/net/wireless/rtlwifi/rtl8192c/phy_common.c |    2 +-
>   1 files changed, 1 insertions(+), 1 deletions(-)
>
> diff --git a/drivers/net/wireless/rtlwifi/rtl8192c/phy_common.c b/drivers/net/wireless/rtlwifi/rtl8192c/phy_common.c
> index 22e998d..a76b223 100644
> --- a/drivers/net/wireless/rtlwifi/rtl8192c/phy_common.c
> +++ b/drivers/net/wireless/rtlwifi/rtl8192c/phy_common.c
> @@ -177,7 +177,7 @@ u32 _rtl92c_phy_calculate_bit_shift(u32 bitmask)
>   	u32 i;
>
>   	for (i = 0; i<= 31; i++) {
> -		if (((bitmask>>  i)&  0x1) == 1)
> +		if ((bitmask>>  i)&  0x1)
>   			break;
>   	}
>   	return i;
```
