* [PATCH] staging: silicom: fix 'return is not a function, parentheses are not required' in bpctl_mod.c
@ 2013-12-05 21:23 Will Tange
2013-12-05 22:50 ` Dan Carpenter
0 siblings, 1 reply; 7+ messages in thread
From: Will Tange @ 2013-12-05 21:23 UTC (permalink / raw)
To: gregkh; +Cc: devel, linux-kernel, Will Tange
Fixes warnings regarding redundant parantheses thrown by the checkpatch tool in bpctl_mod.c
Signed-off-by: Will Tange <bh34rt@gmail.com>
---
drivers/staging/silicom/bpctl_mod.c | 122 ++++++++++++++++++------------------
1 file changed, 61 insertions(+), 61 deletions(-)
diff --git a/drivers/staging/silicom/bpctl_mod.c b/drivers/staging/silicom/bpctl_mod.c
index 39dc92a..ffd5d48 100644
--- a/drivers/staging/silicom/bpctl_mod.c
+++ b/drivers/staging/silicom/bpctl_mod.c
@@ -3125,11 +3125,11 @@ static int tx_status(struct bpctl_dev *pbpctl_dev)
ctrl = BPCTL_READ_REG(pbpctl_dev, CTRL);
if (pbpctl_dev->bp_i80)
- return ((ctrl & BPCTLI_CTRL_SWDPIN1) != 0 ? 0 : 1);
+ return (ctrl & BPCTLI_CTRL_SWDPIN1) != 0 ? 0 : 1;
if (pbpctl_dev->bp_540) {
ctrl = BP10G_READ_REG(pbpctl_dev, ESDP);
- return ((ctrl & BP10G_SDP1_DATA) != 0 ? 0 : 1);
+ return (ctrl & BP10G_SDP1_DATA) != 0 ? 0 : 1;
}
}
@@ -3150,8 +3150,8 @@ static int tx_status(struct bpctl_dev *pbpctl_dev)
}
if (pbpctl_dev->bp_10g9) {
- return ((BP10G_READ_REG(pbpctl_dev, ESDP) &
- BP10G_SDP3_DATA) != 0 ? 0 : 1);
+ return (BP10G_READ_REG(pbpctl_dev, ESDP) &
+ BP10G_SDP3_DATA) != 0 ? 0 : 1;
} else if (pbpctl_dev->bp_fiber5) {
ctrl = BPCTL_READ_REG(pbpctl_dev, CTRL_EXT);
@@ -3186,10 +3186,10 @@ static int tx_status(struct bpctl_dev *pbpctl_dev)
if (pbpctl_dev->bp_540) {
ctrl = BP10G_READ_REG(pbpctl_dev, ESDP);
- return ((ctrl & BP10G_SDP1_DATA) != 0 ? 0 : 1);
+ return (ctrl & BP10G_SDP1_DATA) != 0 ? 0 : 1;
}
- return ((ctrl & BPCTLI_CTRL_SWDPIN0) != 0 ? 0 : 1);
+ return (ctrl & BPCTLI_CTRL_SWDPIN0) != 0 ? 0 : 1;
} else
return ((BP10G_READ_REG(pbpctl_dev, ESDP) &
BP10G_SDP0_DATA) != 0 ? 0 : 1);
@@ -3204,8 +3204,8 @@ static int bp_force_link_status(struct bpctl_dev *pbpctl_dev)
if (DBI_IF_SERIES(pbpctl_dev->subdevice)) {
if ((pbpctl_dev->bp_10g) || (pbpctl_dev->bp_10g9)) {
- return ((BP10G_READ_REG(pbpctl_dev, ESDP) &
- BP10G_SDP1_DIR) != 0 ? 1 : 0);
+ return (BP10G_READ_REG(pbpctl_dev, ESDP) &
+ BP10G_SDP1_DIR) != 0 ? 1 : 0;
}
}
@@ -3251,9 +3251,9 @@ int bypass_flag_status(struct bpctl_dev *pbpctl_dev)
if ((pbpctl_dev->bp_caps & BP_CAP)) {
if (pbpctl_dev->bp_ext_ver >= PXG2BPI_VER) {
- return ((((read_reg(pbpctl_dev, STATUS_REG_ADDR)) &
+ return (((read_reg(pbpctl_dev, STATUS_REG_ADDR)) &
BYPASS_FLAG_MASK) ==
- BYPASS_FLAG_MASK) ? 1 : 0);
+ BYPASS_FLAG_MASK) ? 1 : 0;
}
}
return BP_NOT_CAP;
@@ -3298,8 +3298,8 @@ int bypass_off_status(struct bpctl_dev *pbpctl_dev)
if (pbpctl_dev->bp_caps & BP_CAP) {
if (pbpctl_dev->bp_ext_ver >= PXG2BPI_VER) {
- return ((((read_reg(pbpctl_dev, STATUS_REG_ADDR)) &
- BYPASS_OFF_MASK) == BYPASS_OFF_MASK) ? 1 : 0);
+ return (((read_reg(pbpctl_dev, STATUS_REG_ADDR)) &
+ BYPASS_OFF_MASK) == BYPASS_OFF_MASK) ? 1 : 0;
}
}
return BP_NOT_CAP;
@@ -3333,18 +3333,18 @@ static int bypass_status(struct bpctl_dev *pbpctl_dev)
ctrl_ext = BP10G_READ_REG(pbpctl_dev_b, I2CCTL);
BP10G_WRITE_REG(pbpctl_dev_b, I2CCTL,
(ctrl_ext | BP10G_I2C_CLK_OUT));
- return ((BP10G_READ_REG(pbpctl_dev_b, I2CCTL) &
- BP10G_I2C_CLK_IN) != 0 ? 0 : 1);
+ return (BP10G_READ_REG(pbpctl_dev_b, I2CCTL) &
+ BP10G_I2C_CLK_IN) != 0 ? 0 : 1;
} else if (pbpctl_dev->bp_540) {
- return (((BP10G_READ_REG(pbpctl_dev_b, ESDP)) &
- BP10G_SDP0_DATA) != 0 ? 0 : 1);
+ return ((BP10G_READ_REG(pbpctl_dev_b, ESDP)) &
+ BP10G_SDP0_DATA) != 0 ? 0 : 1;
}
else if ((pbpctl_dev->bp_fiber5)
|| (pbpctl_dev->bp_i80)) {
- return (((BPCTL_READ_REG(pbpctl_dev_b, CTRL)) &
- BPCTLI_CTRL_SWDPIN0) != 0 ? 0 : 1);
+ return ((BPCTL_READ_REG(pbpctl_dev_b, CTRL)) &
+ BPCTLI_CTRL_SWDPIN0) != 0 ? 0 : 1;
} else if (pbpctl_dev->bp_10gb) {
ctrl_ext =
BP10GB_READ_REG(pbpctl_dev, MISC_REG_GPIO);
@@ -3353,10 +3353,10 @@ static int bypass_status(struct bpctl_dev *pbpctl_dev)
& ~(BP10GB_GPIO3_SET_P0 |
BP10GB_GPIO3_CLR_P0));
- return (((BP10GB_READ_REG
+ return ((BP10GB_READ_REG
(pbpctl_dev,
MISC_REG_GPIO)) & BP10GB_GPIO3_P0) !=
- 0 ? 0 : 1);
+ 0 ? 0 : 1;
}
else if (!pbpctl_dev->bp_10g)
@@ -3371,14 +3371,14 @@ static int bypass_status(struct bpctl_dev *pbpctl_dev)
BP10G_WRITE_REG(pbpctl_dev_b, EODSDP,
(ctrl_ext |
BP10G_SDP7_DATA_OUT));
- return ((BP10G_READ_REG(pbpctl_dev_b, EODSDP) &
- BP10G_SDP7_DATA_IN) != 0 ? 0 : 1);
+ return (BP10G_READ_REG(pbpctl_dev_b, EODSDP) &
+ BP10G_SDP7_DATA_IN) != 0 ? 0 : 1;
}
} else if (pbpctl_dev->media_type == BP_COPPER) {
- return (((BPCTL_READ_REG(pbpctl_dev_b, CTRL)) &
- BPCTLI_CTRL_SWDPIN1) != 0 ? 1 : 0);
+ return ((BPCTL_READ_REG(pbpctl_dev_b, CTRL)) &
+ BPCTLI_CTRL_SWDPIN1) != 0 ? 1 : 0;
} else {
if ((bypass_status_clear(pbpctl_dev)) >= 0)
return bypass_from_last_read(pbpctl_dev);
@@ -3394,10 +3394,10 @@ int default_pwron_status(struct bpctl_dev *pbpctl_dev)
if (pbpctl_dev->bp_caps & SW_CTL_CAP) {
if (pbpctl_dev->bp_caps & BP_PWUP_CTL_CAP) {
if (pbpctl_dev->bp_ext_ver >= PXG2BPI_VER) {
- return ((((read_reg
+ return (((read_reg
(pbpctl_dev,
STATUS_REG_ADDR)) & DFLT_PWRON_MASK)
- == DFLT_PWRON_MASK) ? 0 : 1);
+ == DFLT_PWRON_MASK) ? 0 : 1;
}
} /*else if ((!pbpctl_dev->bp_caps&BP_DIS_CAP)&&
(pbpctl_dev->bp_caps&BP_PWUP_ON_CAP))
@@ -3414,8 +3414,8 @@ static int default_pwroff_status(struct bpctl_dev *pbpctl_dev)
return 1; */
if ((pbpctl_dev->bp_caps & SW_CTL_CAP)
&& (pbpctl_dev->bp_caps & BP_PWOFF_CTL_CAP)) {
- return ((((read_reg(pbpctl_dev, STATUS_REG_ADDR)) &
- DFLT_PWROFF_MASK) == DFLT_PWROFF_MASK) ? 0 : 1);
+ return (((read_reg(pbpctl_dev, STATUS_REG_ADDR)) &
+ DFLT_PWROFF_MASK) == DFLT_PWROFF_MASK) ? 0 : 1;
}
return BP_NOT_CAP;
}
@@ -3425,9 +3425,9 @@ int dis_bypass_cap_status(struct bpctl_dev *pbpctl_dev)
if (pbpctl_dev->bp_caps & BP_DIS_CAP) {
if (pbpctl_dev->bp_ext_ver >= PXG2BPI_VER) {
- return ((((read_reg(pbpctl_dev, STATUS_REG_ADDR)) &
+ return (((read_reg(pbpctl_dev, STATUS_REG_ADDR)) &
DIS_BYPASS_CAP_MASK) ==
- DIS_BYPASS_CAP_MASK) ? 1 : 0);
+ DIS_BYPASS_CAP_MASK) ? 1 : 0;
}
}
return BP_NOT_CAP;
@@ -3438,8 +3438,8 @@ int cmd_en_status(struct bpctl_dev *pbpctl_dev)
if (pbpctl_dev->bp_caps & SW_CTL_CAP) {
if (pbpctl_dev->bp_ext_ver >= PXG2BPI_VER) {
- return ((((read_reg(pbpctl_dev, STATUS_REG_ADDR)) &
- CMND_EN_MASK) == CMND_EN_MASK) ? 1 : 0);
+ return (((read_reg(pbpctl_dev, STATUS_REG_ADDR)) &
+ CMND_EN_MASK) == CMND_EN_MASK) ? 1 : 0;
}
}
return BP_NOT_CAP;
@@ -3450,8 +3450,8 @@ int wdt_en_status(struct bpctl_dev *pbpctl_dev)
if (pbpctl_dev->bp_caps & WD_CTL_CAP) {
if (pbpctl_dev->bp_ext_ver >= PXG2BPI_VER) {
- return ((((read_reg(pbpctl_dev, STATUS_REG_ADDR)) &
- WDT_EN_MASK) == WDT_EN_MASK) ? 1 : 0);
+ return (((read_reg(pbpctl_dev, STATUS_REG_ADDR)) &
+ WDT_EN_MASK) == WDT_EN_MASK) ? 1 : 0;
}
}
return BP_NOT_CAP;
@@ -3617,8 +3617,8 @@ int tap_status(struct bpctl_dev *pbpctl_dev)
BP10G_WRITE_REG(pbpctl_dev_b, EODSDP,
(ctrl_ext |
BP10G_SDP6_DATA_OUT));
- return ((BP10G_READ_REG(pbpctl_dev_b, EODSDP) &
- BP10G_SDP6_DATA_IN) != 0 ? 0 : 1);
+ return (BP10G_READ_REG(pbpctl_dev_b, EODSDP) &
+ BP10G_SDP6_DATA_IN) != 0 ? 0 : 1;
}
} else if (pbpctl_dev->media_type == BP_COPPER)
@@ -3706,14 +3706,14 @@ int disc_off_status(struct bpctl_dev *pbpctl_dev)
DISC_OFF_MASK) == DISC_OFF_MASK) ? 1 : 0);
if (pbpctl_dev->bp_i80) {
- return (((BPCTL_READ_REG(pbpctl_dev_b, CTRL_EXT)) &
- BPCTLI_CTRL_EXT_SDP6_DATA) != 0 ? 1 : 0);
+ return ((BPCTL_READ_REG(pbpctl_dev_b, CTRL_EXT)) &
+ BPCTLI_CTRL_EXT_SDP6_DATA) != 0 ? 1 : 0;
}
if (pbpctl_dev->bp_540) {
ctrl_ext = BP10G_READ_REG(pbpctl_dev_b, ESDP);
- return ((BP10G_READ_REG(pbpctl_dev_b, ESDP) &
- BP10G_SDP2_DATA) != 0 ? 1 : 0);
+ return (BP10G_READ_REG(pbpctl_dev_b, ESDP) &
+ BP10G_SDP2_DATA) != 0 ? 1 : 0;
}
if (pbpctl_dev->media_type == BP_COPPER) {
@@ -3736,12 +3736,12 @@ int disc_off_status(struct bpctl_dev *pbpctl_dev)
BP10G_WRITE_REG(pbpctl_dev_b, I2CCTL,
(ctrl_ext |
BP10G_I2C_DATA_OUT));
- return ((BP10G_READ_REG(pbpctl_dev_b, I2CCTL) &
- BP10G_I2C_DATA_IN) != 0 ? 1 : 0);
+ return (BP10G_READ_REG(pbpctl_dev_b, I2CCTL) &
+ BP10G_I2C_DATA_IN) != 0 ? 1 : 0;
} else if (pbpctl_dev->bp_fiber5) {
- return (((BPCTL_READ_REG(pbpctl_dev_b, CTRL)) &
- BPCTLI_CTRL_SWDPIN1) != 0 ? 1 : 0);
+ return ((BPCTL_READ_REG(pbpctl_dev_b, CTRL)) &
+ BPCTLI_CTRL_SWDPIN1) != 0 ? 1 : 0;
} else if (pbpctl_dev->bp_10gb) {
ctrl_ext =
BP10GB_READ_REG(pbpctl_dev, MISC_REG_GPIO);
@@ -3750,25 +3750,25 @@ int disc_off_status(struct bpctl_dev *pbpctl_dev)
& ~(BP10GB_GPIO3_SET_P1 |
BP10GB_GPIO3_CLR_P1));
- return (((BP10GB_READ_REG
+ return ((BP10GB_READ_REG
(pbpctl_dev,
MISC_REG_GPIO)) & BP10GB_GPIO3_P1) !=
- 0 ? 1 : 0);
+ 0 ? 1 : 0;
}
if (!pbpctl_dev->bp_10g) {
- return (((BPCTL_READ_REG
+ return ((BPCTL_READ_REG
(pbpctl_dev_b,
CTRL_EXT)) &
BPCTLI_CTRL_EXT_SDP6_DATA) !=
- 0 ? 1 : 0);
+ 0 ? 1 : 0;
} else {
ctrl_ext = BP10G_READ_REG(pbpctl_dev_b, EODSDP);
BP10G_WRITE_REG(pbpctl_dev_b, EODSDP,
(ctrl_ext |
BP10G_SDP6_DATA_OUT));
- return (((BP10G_READ_REG(pbpctl_dev_b, EODSDP))
- & BP10G_SDP6_DATA_IN) != 0 ? 1 : 0);
+ return ((BP10G_READ_REG(pbpctl_dev_b, EODSDP))
+ & BP10G_SDP6_DATA_IN) != 0 ? 1 : 0;
}
}
@@ -3783,7 +3783,7 @@ static int disc_status(struct bpctl_dev *pbpctl_dev)
ctrl = disc_off_status(pbpctl_dev);
if (ctrl < 0)
return ctrl;
- return ((ctrl == 0) ? 1 : 0);
+ return (ctrl == 0) ? 1 : 0;
}
return BP_NOT_CAP;
}
@@ -3824,8 +3824,8 @@ int disc_port_status(struct bpctl_dev *pbpctl_dev)
if (pbpctl_dev_m->bp_caps_ex & DISC_PORT_CAP_EX) {
if (is_bypass_fn(pbpctl_dev) == 1) {
- return ((((read_reg(pbpctl_dev, STATUS_TAP_REG_ADDR)) &
- TX_DISA_MASK) == TX_DISA_MASK) ? 1 : 0);
+ return (((read_reg(pbpctl_dev, STATUS_TAP_REG_ADDR)) &
+ TX_DISA_MASK) == TX_DISA_MASK) ? 1 : 0;
} else
return ((((read_reg(pbpctl_dev, STATUS_TAP_REG_ADDR)) &
TX_DISB_MASK) == TX_DISB_MASK) ? 1 : 0);
@@ -3885,8 +3885,8 @@ int tpl2_flag_status(struct bpctl_dev *pbpctl_dev)
{
if (pbpctl_dev->bp_caps_ex & TPL2_CAP_EX) {
- return ((((read_reg(pbpctl_dev, STATUS_DISC_REG_ADDR)) &
- TPL2_FLAG_MASK) == TPL2_FLAG_MASK) ? 1 : 0);
+ return (((read_reg(pbpctl_dev, STATUS_DISC_REG_ADDR)) &
+ TPL2_FLAG_MASK) == TPL2_FLAG_MASK) ? 1 : 0;
}
return BP_NOT_CAP;
@@ -3940,8 +3940,8 @@ int std_nic_status(struct bpctl_dev *pbpctl_dev)
if (INTEL_IF_SERIES(pbpctl_dev->subdevice))
return BP_NOT_CAP;
if (pbpctl_dev->bp_ext_ver >= BP_FW_EXT_VER8) {
- return ((((read_reg(pbpctl_dev, STATUS_DISC_REG_ADDR)) &
- STD_NIC_ON_MASK) == STD_NIC_ON_MASK) ? 1 : 0);
+ return (((read_reg(pbpctl_dev, STATUS_DISC_REG_ADDR)) &
+ STD_NIC_ON_MASK) == STD_NIC_ON_MASK) ? 1 : 0;
}
if (pbpctl_dev->bp_ext_ver >= PXG2BPI_VER) {
@@ -4377,7 +4377,7 @@ int is_bypass_fn(struct bpctl_dev *pbpctl_dev)
if (!pbpctl_dev)
return -1;
- return (((pbpctl_dev->func == 0) || (pbpctl_dev->func == 2)) ? 1 : 0);
+ return ((pbpctl_dev->func == 0) || (pbpctl_dev->func == 2)) ? 1 : 0;
}
int set_bypass_fn(struct bpctl_dev *pbpctl_dev, int bypass_mode)
@@ -4641,7 +4641,7 @@ int get_tap_pwup_fn(struct bpctl_dev *pbpctl_dev)
ret = default_pwron_tap_status(pbpctl_dev);
if (ret < 0)
return ret;
- return ((ret == 0) ? 1 : 0);
+ return (ret == 0) ? 1 : 0;
}
int get_tap_change_fn(struct bpctl_dev *pbpctl_dev)
@@ -4730,7 +4730,7 @@ int get_disc_pwup_fn(struct bpctl_dev *pbpctl_dev)
return -1;
ret = default_pwron_disc_status(pbpctl_dev);
- return (ret == 0 ? 1 : (ret < 0 ? BP_NOT_CAP : 0));
+ return ret == 0 ? 1 : (ret < 0 ? BP_NOT_CAP : 0);
}
int get_disc_change_fn(struct bpctl_dev *pbpctl_dev)
@@ -4817,7 +4817,7 @@ int get_disc_port_pwup_fn(struct bpctl_dev *pbpctl_dev)
ret = default_pwron_disc_port_status(pbpctl_dev);
if (ret < 0)
return ret;
- return ((ret == 0) ? 1 : 0);
+ return (ret == 0) ? 1 : 0;
}
int get_wd_exp_mode_fn(struct bpctl_dev *pbpctl_dev)
--
1.8.4.2
^ permalink raw reply related [flat|nested] 7+ messages in thread
* Re: [PATCH] staging: silicom: fix 'return is not a function, parentheses are not required' in bpctl_mod.c
2013-12-05 21:23 [PATCH] staging: silicom: fix 'return is not a function, parentheses are not required' in bpctl_mod.c Will Tange
@ 2013-12-05 22:50 ` Dan Carpenter
2013-12-05 23:09 ` Joe Perches
0 siblings, 1 reply; 7+ messages in thread
From: Dan Carpenter @ 2013-12-05 22:50 UTC (permalink / raw)
To: Will Tange; +Cc: gregkh, devel, linux-kernel
On Thu, Dec 05, 2013 at 10:23:53PM +0100, Will Tange wrote:
> Fixes warnings regarding redundant parantheses thrown by the checkpatch tool in bpctl_mod.c
>
Fair enough, but if you wanted to go clean the returns up further then
you could. Remove all the "!= 0" bits.
> @@ -3125,11 +3125,11 @@ static int tx_status(struct bpctl_dev *pbpctl_dev)
>
> ctrl = BPCTL_READ_REG(pbpctl_dev, CTRL);
> if (pbpctl_dev->bp_i80)
> - return ((ctrl & BPCTLI_CTRL_SWDPIN1) != 0 ? 0 : 1);
> + return (ctrl & BPCTLI_CTRL_SWDPIN1) != 0 ? 0 : 1;
The double negative just makes the code not as not confusing as it could
be. Simpler:
return (ctrl & BPCTLI_CTRL_SWDPIN1) ? 0 : 1;
>
> if ((pbpctl_dev->bp_caps & BP_CAP)) {
> if (pbpctl_dev->bp_ext_ver >= PXG2BPI_VER) {
> - return ((((read_reg(pbpctl_dev, STATUS_REG_ADDR)) &
> + return (((read_reg(pbpctl_dev, STATUS_REG_ADDR)) &
> BYPASS_FLAG_MASK) ==
> - BYPASS_FLAG_MASK) ? 1 : 0);
> + BYPASS_FLAG_MASK) ? 1 : 0;
These super long lines would be better if we introduced a temporary
variable.
reg = read_reg(pbpctl_dev, STATUS_REG_ADDR);
return (reg & BYPASS_FLAG_MASK) == BYPASS_FLAG_MASK;
BYPASS_FLAG_MASK is poorly named. It's actually just a bit or a flag
and not a mask, so it could be renamed.
reg = read_reg(pbpctl_dev, STATUS_REG_ADDR);
return (reg & BP_BYPASS_FLAG) ? 1 : 0;
Which is way simpler than the original and only 2 lines long instead of
4. I don't know that "BP_" is the right prefix... BYPASS_FLAG is too
generic.
> @@ -4730,7 +4730,7 @@ int get_disc_pwup_fn(struct bpctl_dev *pbpctl_dev)
> return -1;
>
> ret = default_pwron_disc_status(pbpctl_dev);
> - return (ret == 0 ? 1 : (ret < 0 ? BP_NOT_CAP : 0));
> + return ret == 0 ? 1 : (ret < 0 ? BP_NOT_CAP : 0);
if (ret < 0)
return BP_NOT_CAP;
if (ret == 0)
return 1;
return 0;
More lines, but simpler to understand than the original.
Think of checkpatch.pl as a pointer to bad code and not that we just
have to silence checkpatch and move on.
regards,
dan carpenter
^ permalink raw reply [flat|nested] 7+ messages in thread
* Re: [PATCH] staging: silicom: fix 'return is not a function, parentheses are not required' in bpctl_mod.c
2013-12-05 22:50 ` Dan Carpenter
@ 2013-12-05 23:09 ` Joe Perches
2013-12-05 23:21 ` Dan Carpenter
0 siblings, 1 reply; 7+ messages in thread
From: Joe Perches @ 2013-12-05 23:09 UTC (permalink / raw)
To: Dan Carpenter; +Cc: Will Tange, gregkh, devel, linux-kernel
On Fri, 2013-12-06 at 01:50 +0300, Dan Carpenter wrote:
> On Thu, Dec 05, 2013 at 10:23:53PM +0100, Will Tange wrote:
> > Fixes warnings regarding redundant parantheses thrown by the checkpatch tool in bpctl_mod.c
[]
> if (ret < 0)
> return BP_NOT_CAP;
> if (ret == 0)
> return 1;
> return 0;
>
> More lines, but simpler to understand than the original.
>
> Think of checkpatch.pl as a pointer to bad code and not that we just
> have to silence checkpatch and move on.
So true.
If 0 is the expected ret value and 1 is the
expected function return for not-errored use,
I suggest changing the last bit to:
if (ret < 0)
return BP_NOT_CAP;
else if (ret > 0)
return 0;
return 1;
so that the error conditions are done first
and the normal return is at the bottom of
the function.
^ permalink raw reply [flat|nested] 7+ messages in thread
* Re: [PATCH] staging: silicom: fix 'return is not a function, parentheses are not required' in bpctl_mod.c
2013-12-05 23:09 ` Joe Perches
@ 2013-12-05 23:21 ` Dan Carpenter
2013-12-05 23:29 ` Joe Perches
0 siblings, 1 reply; 7+ messages in thread
From: Dan Carpenter @ 2013-12-05 23:21 UTC (permalink / raw)
To: Joe Perches; +Cc: Will Tange, gregkh, devel, linux-kernel
On Thu, Dec 05, 2013 at 03:09:15PM -0800, Joe Perches wrote:
> On Fri, 2013-12-06 at 01:50 +0300, Dan Carpenter wrote:
> > On Thu, Dec 05, 2013 at 10:23:53PM +0100, Will Tange wrote:
> > > Fixes warnings regarding redundant parantheses thrown by the checkpatch tool in bpctl_mod.c
> []
> > if (ret < 0)
> > return BP_NOT_CAP;
> > if (ret == 0)
> > return 1;
> > return 0;
> >
> > More lines, but simpler to understand than the original.
> >
> > Think of checkpatch.pl as a pointer to bad code and not that we just
> > have to silence checkpatch and move on.
>
> So true.
>
> If 0 is the expected ret value and 1 is the
> expected function return for not-errored use,
> I suggest changing the last bit to:
>
> if (ret < 0)
> return BP_NOT_CAP;
> else if (ret > 0)
> return 0;
>
> return 1;
>
> so that the error conditions are done first
> and the normal return is at the bottom of
> the function.
In this function, -1 means fail, 1 means "on" and 0 means "off". I
sorted them from lowest to highest: negative, zero and greater than
zero.
regards,
dan carpenter
^ permalink raw reply [flat|nested] 7+ messages in thread
* Re: [PATCH] staging: silicom: fix 'return is not a function, parentheses are not required' in bpctl_mod.c
2013-12-05 23:21 ` Dan Carpenter
@ 2013-12-05 23:29 ` Joe Perches
2013-12-06 7:11 ` Dan Carpenter
0 siblings, 1 reply; 7+ messages in thread
From: Joe Perches @ 2013-12-05 23:29 UTC (permalink / raw)
To: Dan Carpenter; +Cc: Will Tange, gregkh, devel, linux-kernel
On Fri, 2013-12-06 at 02:21 +0300, Dan Carpenter wrote:
> On Thu, Dec 05, 2013 at 03:09:15PM -0800, Joe Perches wrote:
> > On Fri, 2013-12-06 at 01:50 +0300, Dan Carpenter wrote:
> > > On Thu, Dec 05, 2013 at 10:23:53PM +0100, Will Tange wrote:
> > > > Fixes warnings regarding redundant parantheses thrown by the checkpatch tool in bpctl_mod.c
> > []
> > > if (ret < 0)
> > > return BP_NOT_CAP;
> > > if (ret == 0)
> > > return 1;
> > > return 0;
> > >
> > > More lines, but simpler to understand than the original.
> > >
> > > Think of checkpatch.pl as a pointer to bad code and not that we just
> > > have to silence checkpatch and move on.
> >
> > So true.
> >
> > If 0 is the expected ret value and 1 is the
> > expected function return for not-errored use,
> > I suggest changing the last bit to:
> >
> > if (ret < 0)
> > return BP_NOT_CAP;
> > else if (ret > 0)
> > return 0;
> >
> > return 1;
> >
> > so that the error conditions are done first
> > and the normal return is at the bottom of
> > the function.
>
> In this function, -1 means fail, 1 means "on" and 0 means "off". I
> sorted them from lowest to highest: negative, zero and greater than
> zero.
Ah.
Then maybe use a single ?: or a ! instead
return ret ? 0 : 1;
or
return !ret;
cheers, Joe
^ permalink raw reply [flat|nested] 7+ messages in thread
* Re: [PATCH] staging: silicom: fix 'return is not a function, parentheses are not required' in bpctl_mod.c
2013-12-05 23:29 ` Joe Perches
@ 2013-12-06 7:11 ` Dan Carpenter
2013-12-06 7:18 ` Joe Perches
0 siblings, 1 reply; 7+ messages in thread
From: Dan Carpenter @ 2013-12-06 7:11 UTC (permalink / raw)
To: Joe Perches; +Cc: Will Tange, gregkh, devel, linux-kernel
On Thu, Dec 05, 2013 at 03:29:22PM -0800, Joe Perches wrote:
> On Fri, 2013-12-06 at 02:21 +0300, Dan Carpenter wrote:
> > On Thu, Dec 05, 2013 at 03:09:15PM -0800, Joe Perches wrote:
> > > On Fri, 2013-12-06 at 01:50 +0300, Dan Carpenter wrote:
> > > > On Thu, Dec 05, 2013 at 10:23:53PM +0100, Will Tange wrote:
>
> Ah.
>
> Then maybe use a single ?: or a ! instead
>
> return ret ? 0 : 1;
> or
> return !ret;
>
You still have to handle the negative.
if (ret < 0)
return ret;
return !ret;
regards,
dan carpenter
^ permalink raw reply [flat|nested] 7+ messages in thread
* Re: [PATCH] staging: silicom: fix 'return is not a function, parentheses are not required' in bpctl_mod.c
2013-12-06 7:11 ` Dan Carpenter
@ 2013-12-06 7:18 ` Joe Perches
0 siblings, 0 replies; 7+ messages in thread
From: Joe Perches @ 2013-12-06 7:18 UTC (permalink / raw)
To: Dan Carpenter; +Cc: Will Tange, gregkh, devel, linux-kernel
On Fri, 2013-12-06 at 10:11 +0300, Dan Carpenter wrote:
> On Thu, Dec 05, 2013 at 03:29:22PM -0800, Joe Perches wrote:
> > On Fri, 2013-12-06 at 02:21 +0300, Dan Carpenter wrote:
> > > On Thu, Dec 05, 2013 at 03:09:15PM -0800, Joe Perches wrote:
> > > > On Fri, 2013-12-06 at 01:50 +0300, Dan Carpenter wrote:
> > > > > On Thu, Dec 05, 2013 at 10:23:53PM +0100, Will Tange wrote:
> >
> > Ah.
> >
> > Then maybe use a single ?: or a ! instead
> >
> > return ret ? 0 : 1;
> > or
> > return !ret;
> >
>
> You still have to handle the negative.
>
> if (ret < 0)
> return ret;
>
> return !ret;
Of course. Apologies for not being clear. I meant
using that ?: or ! after the first if (ret < 0) as
you wrote.
^ permalink raw reply [flat|nested] 7+ messages in thread
end of thread, other threads:[~2013-12-06 7:18 UTC | newest]
Thread overview: 7+ messages (download: mbox.gz follow: Atom feed
-- links below jump to the message on this page --
2013-12-05 21:23 [PATCH] staging: silicom: fix 'return is not a function, parentheses are not required' in bpctl_mod.c Will Tange
2013-12-05 22:50 ` Dan Carpenter
2013-12-05 23:09 ` Joe Perches
2013-12-05 23:21 ` Dan Carpenter
2013-12-05 23:29 ` Joe Perches
2013-12-06 7:11 ` Dan Carpenter
2013-12-06 7:18 ` Joe Perches
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