[PATCH 0/4] treewide: Fix likely misuses of | for &

[PATCH 0/4] treewide: Fix likely misuses of | for &

[Joe Perches]

| with a non-zero constant is always true.
Likely these should have been &.

Joe Perches (4):
  mac80211: Fix likely misuse of | for &
  can: cc770: Fix likely misuse of | for &
  brcmfmac: Fix likely misuse of | for &
  usb: gadget: pch_udc: Fix likely misuse of | for &

 drivers/net/can/cc770/cc770_platform.c           |    2 +-
 drivers/net/wireless/brcm80211/brcmfmac/bcmsdh.c |    4 ++--
 drivers/usb/gadget/pch_udc.c                     |    2 +-
 net/mac80211/cfg.c                               |    6 +++---
 4 files changed, 7 insertions(+), 7 deletions(-)

-- 
1.7.8.111.gad25c.dirty

[PATCH 1/4] mac80211: Fix likely misuse of | for &

[Joe Perches]

Using | with a constant is always true.
Likely this should have be &.

cc: Ben Greear <greearb@candelatech.com>
Signed-off-by: Joe Perches <joe@perches.com>
---
 net/mac80211/cfg.c |    6 +++---
 1 files changed, 3 insertions(+), 3 deletions(-)

diff --git a/net/mac80211/cfg.c b/net/mac80211/cfg.c
index 495831e..e9cecca 100644
--- a/net/mac80211/cfg.c
+++ b/net/mac80211/cfg.c
@@ -533,16 +533,16 @@ static void ieee80211_get_et_stats(struct wiphy *wiphy,
 		sinfo.filled = 0;
 		sta_set_sinfo(sta, &sinfo);
 
-		if (sinfo.filled | STATION_INFO_TX_BITRATE)
+		if (sinfo.filled & STATION_INFO_TX_BITRATE)
 			data[i] = 100000 *
 				cfg80211_calculate_bitrate(&sinfo.txrate);
 		i++;
-		if (sinfo.filled | STATION_INFO_RX_BITRATE)
+		if (sinfo.filled & STATION_INFO_RX_BITRATE)
 			data[i] = 100000 *
 				cfg80211_calculate_bitrate(&sinfo.rxrate);
 		i++;
 
-		if (sinfo.filled | STATION_INFO_SIGNAL_AVG)
+		if (sinfo.filled & STATION_INFO_SIGNAL_AVG)
 			data[i] = (u8)sinfo.signal_avg;
 		i++;
 	} else {
-- 
1.7.8.111.gad25c.dirty

Re: [PATCH 1/4] mac80211: Fix likely misuse of | for &

[Ben Greear]

On 05/30/2012 01:25 PM, Joe Perches wrote:
> Using | with a constant is always true.
> Likely this should have be&.

Yes, I think your change is correct.  Looks like something
a compiler or static analysis tool could catch and warn about...

Sorry for the bug!

Ben

>
> cc: Ben Greear<greearb@candelatech.com>
> Signed-off-by: Joe Perches<joe@perches.com>
> ---
>   net/mac80211/cfg.c |    6 +++---
>   1 files changed, 3 insertions(+), 3 deletions(-)
>
> diff --git a/net/mac80211/cfg.c b/net/mac80211/cfg.c
> index 495831e..e9cecca 100644
> --- a/net/mac80211/cfg.c
> +++ b/net/mac80211/cfg.c
> @@ -533,16 +533,16 @@ static void ieee80211_get_et_stats(struct wiphy *wiphy,
>   		sinfo.filled = 0;
>   		sta_set_sinfo(sta,&sinfo);
>
> -		if (sinfo.filled | STATION_INFO_TX_BITRATE)
> +		if (sinfo.filled&  STATION_INFO_TX_BITRATE)
>   			data[i] = 100000 *
>   				cfg80211_calculate_bitrate(&sinfo.txrate);
>   		i++;
> -		if (sinfo.filled | STATION_INFO_RX_BITRATE)
> +		if (sinfo.filled&  STATION_INFO_RX_BITRATE)
>   			data[i] = 100000 *
>   				cfg80211_calculate_bitrate(&sinfo.rxrate);
>   		i++;
>
> -		if (sinfo.filled | STATION_INFO_SIGNAL_AVG)
> +		if (sinfo.filled&  STATION_INFO_SIGNAL_AVG)
>   			data[i] = (u8)sinfo.signal_avg;
>   		i++;
>   	} else {


-- 
Ben Greear <greearb@candelatech.com>
Candela Technologies Inc  http://www.candelatech.com

[PATCH 2/4] can: cc770: Fix likely misuse of | for &

[Joe Perches]

Using | with a constant is always true.
Likely this should have be &.

Signed-off-by: Joe Perches <joe@perches.com>
---
 drivers/net/can/cc770/cc770_platform.c |    2 +-
 1 files changed, 1 insertions(+), 1 deletions(-)

diff --git a/drivers/net/can/cc770/cc770_platform.c b/drivers/net/can/cc770/cc770_platform.c
index 53115ee..688371c 100644
--- a/drivers/net/can/cc770/cc770_platform.c
+++ b/drivers/net/can/cc770/cc770_platform.c
@@ -154,7 +154,7 @@ static int __devinit cc770_get_platform_data(struct platform_device *pdev,
 	struct cc770_platform_data *pdata = pdev->dev.platform_data;
 
 	priv->can.clock.freq = pdata->osc_freq;
-	if (priv->cpu_interface | CPUIF_DSC)
+	if (priv->cpu_interface & CPUIF_DSC)
 		priv->can.clock.freq /= 2;
 	priv->clkout = pdata->cor;
 	priv->bus_config = pdata->bcr;
-- 
1.7.8.111.gad25c.dirty

Re: [PATCH 2/4] can: cc770: Fix likely misuse of | for &

[Marc Kleine-Budde]

[-- Attachment #1: Type: text/plain, Size: 1330 bytes --]

On 05/30/2012 10:25 PM, Joe Perches wrote:
> Using | with a constant is always true.
> Likely this should have be &.
> 
> Signed-off-by: Joe Perches <joe@perches.com>

Sounds reasonable. And there are no in tree users of the platform driver
that this fix could break.

commited to linux-can,
Marc

> ---
>  drivers/net/can/cc770/cc770_platform.c |    2 +-
>  1 files changed, 1 insertions(+), 1 deletions(-)
> 
> diff --git a/drivers/net/can/cc770/cc770_platform.c b/drivers/net/can/cc770/cc770_platform.c
> index 53115ee..688371c 100644
> --- a/drivers/net/can/cc770/cc770_platform.c
> +++ b/drivers/net/can/cc770/cc770_platform.c
> @@ -154,7 +154,7 @@ static int __devinit cc770_get_platform_data(struct platform_device *pdev,
>  	struct cc770_platform_data *pdata = pdev->dev.platform_data;
>  
>  	priv->can.clock.freq = pdata->osc_freq;
> -	if (priv->cpu_interface | CPUIF_DSC)
> +	if (priv->cpu_interface & CPUIF_DSC)
>  		priv->can.clock.freq /= 2;
>  	priv->clkout = pdata->cor;
>  	priv->bus_config = pdata->bcr;


-- 
Pengutronix e.K.                  | Marc Kleine-Budde           |
Industrial Linux Solutions        | Phone: +49-231-2826-924     |
Vertretung West/Dortmund          | Fax:   +49-5121-206917-5555 |
Amtsgericht Hildesheim, HRA 2686  | http://www.pengutronix.de   |


[-- Attachment #2: OpenPGP digital signature --]
[-- Type: application/pgp-signature, Size: 262 bytes --]

[PATCH 3/4] brcmfmac: Fix likely misuse of | for &

[Joe Perches]

Using | with a constant is always true.
Likely this should have be &.

Signed-off-by: Joe Perches <joe@perches.com>
---
 drivers/net/wireless/brcm80211/brcmfmac/bcmsdh.c |    4 ++--
 1 files changed, 2 insertions(+), 2 deletions(-)

diff --git a/drivers/net/wireless/brcm80211/brcmfmac/bcmsdh.c b/drivers/net/wireless/brcm80211/brcmfmac/bcmsdh.c
index e2480d1..8e7e692 100644
--- a/drivers/net/wireless/brcm80211/brcmfmac/bcmsdh.c
+++ b/drivers/net/wireless/brcm80211/brcmfmac/bcmsdh.c
@@ -89,9 +89,9 @@ int brcmf_sdio_intr_register(struct brcmf_sdio_dev *sdiodev)
 	data |= 1 << SDIO_FUNC_1 | 1 << SDIO_FUNC_2 | 1;
 	brcmf_sdio_regwb(sdiodev, SDIO_CCCR_IENx, data, &ret);
 
-	/* redirect, configure ane enable io for interrupt signal */
+	/* redirect, configure and enable io for interrupt signal */
 	data = SDIO_SEPINT_MASK | SDIO_SEPINT_OE;
-	if (sdiodev->irq_flags | IRQF_TRIGGER_HIGH)
+	if (sdiodev->irq_flags & IRQF_TRIGGER_HIGH)
 		data |= SDIO_SEPINT_ACT_HI;
 	brcmf_sdio_regwb(sdiodev, SDIO_CCCR_BRCM_SEPINT, data, &ret);
 
-- 
1.7.8.111.gad25c.dirty

Re: [PATCH 3/4] brcmfmac: Fix likely misuse of | for &

[Arend van Spriel]

On 05/30/2012 10:25 PM, Joe Perches wrote:
> Using | with a constant is always true.
> Likely this should have be &.

Acked-by: Arend van Spriel <arend@broadcom.com>
> Signed-off-by: Joe Perches <joe@perches.com>
> ---
>  drivers/net/wireless/brcm80211/brcmfmac/bcmsdh.c |    4 ++--
>  1 files changed, 2 insertions(+), 2 deletions(-)