Replaces bit shifting on 1 with the BIT(x) macro
Signed-off-by: Nizam Haider <[email protected]>
---
drivers/staging/iio/adc/mxs-lradc.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/drivers/staging/iio/adc/mxs-lradc.c b/drivers/staging/iio/adc/mxs-lradc.c
index d997d9c..5f1375c 100644
--- a/drivers/staging/iio/adc/mxs-lradc.c
+++ b/drivers/staging/iio/adc/mxs-lradc.c
@@ -324,7 +324,7 @@ struct mxs_lradc {
#define LRADC_DELAY_TRIGGER(x) \
(((x) << LRADC_DELAY_TRIGGER_LRADCS_OFFSET) & \
LRADC_DELAY_TRIGGER_LRADCS_MASK)
-#define LRADC_DELAY_KICK (1 << 20)
+#define LRADC_DELAY_KICK BIT(20)
#define LRADC_DELAY_TRIGGER_DELAYS_MASK (0xf << 16)
#define LRADC_DELAY_TRIGGER_DELAYS_OFFSET 16
#define LRADC_DELAY_TRIGGER_DELAYS(x) \
--
1.8.1.4
Hi Nizam,
[auto build test WARNING on staging/staging-testing]
[also build test WARNING on v4.3 next-20151109]
url: https://github.com/0day-ci/linux/commits/Nizam-Haider/iio-adc-mxs-lradc-Prefer-using-the-BIT-macro/20151109-222735
config: sparc64-allyesconfig (attached as .config)
reproduce:
wget https://git.kernel.org/cgit/linux/kernel/git/wfg/lkp-tests.git/plain/sbin/make.cross -O ~/bin/make.cross
chmod +x ~/bin/make.cross
# save the attached .config to linux build tree
make.cross ARCH=sparc64
All warnings (new ones prefixed by >>):
drivers/staging/iio/adc/mxs-lradc.c: In function 'mxs_lradc_complete_touch_event':
>> drivers/staging/iio/adc/mxs-lradc.c:325:5: warning: large integer implicitly truncated to unsigned type [-Woverflow]
(((x) << LRADC_DELAY_TRIGGER_LRADCS_OFFSET) & \
^
>> drivers/staging/iio/adc/mxs-lradc.c:734:7: note: in expansion of macro 'LRADC_DELAY_TRIGGER'
LRADC_DELAY_TRIGGER(1 << TOUCHSCREEN_VCHANNEL1) |
^
drivers/staging/iio/adc/mxs-lradc.c: In function 'mxs_lradc_buffer_preenable':
drivers/staging/iio/adc/mxs-lradc.c:322:42: warning: large integer implicitly truncated to unsigned type [-Woverflow]
#define LRADC_DELAY_TRIGGER_LRADCS_MASK (0xff << 24)
^
>> drivers/staging/iio/adc/mxs-lradc.c:1308:29: note: in expansion of macro 'LRADC_DELAY_TRIGGER_LRADCS_MASK'
mxs_lradc_reg_clear(lradc, LRADC_DELAY_TRIGGER_LRADCS_MASK |
^
drivers/staging/iio/adc/mxs-lradc.c: In function 'mxs_lradc_buffer_postdisable':
drivers/staging/iio/adc/mxs-lradc.c:322:42: warning: large integer implicitly truncated to unsigned type [-Woverflow]
#define LRADC_DELAY_TRIGGER_LRADCS_MASK (0xff << 24)
^
drivers/staging/iio/adc/mxs-lradc.c:1327:29: note: in expansion of macro 'LRADC_DELAY_TRIGGER_LRADCS_MASK'
mxs_lradc_reg_clear(lradc, LRADC_DELAY_TRIGGER_LRADCS_MASK |
^
vim +325 drivers/staging/iio/adc/mxs-lradc.c
06ddd353 Marek Vasut 2013-01-11 309 #define LRADC_STATUS 0x40
418880f5 Haneen Mohammed 2015-03-26 310 #define LRADC_STATUS_TOUCH_DETECT_RAW BIT(0)
06ddd353 Marek Vasut 2013-01-11 311
bc2c90c9 Marek Vasut 2012-08-12 312 #define LRADC_CH(n) (0x50 + (0x10 * (n)))
418880f5 Haneen Mohammed 2015-03-26 313 #define LRADC_CH_ACCUMULATE BIT(29)
bc2c90c9 Marek Vasut 2012-08-12 314 #define LRADC_CH_NUM_SAMPLES_MASK (0x1f << 24)
bc2c90c9 Marek Vasut 2012-08-12 315 #define LRADC_CH_NUM_SAMPLES_OFFSET 24
dee05308 Juergen Beisert 2013-09-23 316 #define LRADC_CH_NUM_SAMPLES(x) \
dee05308 Juergen Beisert 2013-09-23 317 ((x) << LRADC_CH_NUM_SAMPLES_OFFSET)
bc2c90c9 Marek Vasut 2012-08-12 318 #define LRADC_CH_VALUE_MASK 0x3ffff
bc2c90c9 Marek Vasut 2012-08-12 319 #define LRADC_CH_VALUE_OFFSET 0
bc2c90c9 Marek Vasut 2012-08-12 320
bc2c90c9 Marek Vasut 2012-08-12 321 #define LRADC_DELAY(n) (0xd0 + (0x10 * (n)))
bc2c90c9 Marek Vasut 2012-08-12 322 #define LRADC_DELAY_TRIGGER_LRADCS_MASK (0xff << 24)
bc2c90c9 Marek Vasut 2012-08-12 323 #define LRADC_DELAY_TRIGGER_LRADCS_OFFSET 24
dee05308 Juergen Beisert 2013-09-23 324 #define LRADC_DELAY_TRIGGER(x) \
dee05308 Juergen Beisert 2013-09-23 @325 (((x) << LRADC_DELAY_TRIGGER_LRADCS_OFFSET) & \
dee05308 Juergen Beisert 2013-09-23 326 LRADC_DELAY_TRIGGER_LRADCS_MASK)
33365872 Nizam Haider 2015-11-09 327 #define LRADC_DELAY_KICK BIT(20)
bc2c90c9 Marek Vasut 2012-08-12 328 #define LRADC_DELAY_TRIGGER_DELAYS_MASK (0xf << 16)
bc2c90c9 Marek Vasut 2012-08-12 329 #define LRADC_DELAY_TRIGGER_DELAYS_OFFSET 16
dee05308 Juergen Beisert 2013-09-23 330 #define LRADC_DELAY_TRIGGER_DELAYS(x) \
dee05308 Juergen Beisert 2013-09-23 331 (((x) << LRADC_DELAY_TRIGGER_DELAYS_OFFSET) & \
dee05308 Juergen Beisert 2013-09-23 332 LRADC_DELAY_TRIGGER_DELAYS_MASK)
bc2c90c9 Marek Vasut 2012-08-12 333 #define LRADC_DELAY_LOOP_COUNT_MASK (0x1f << 11)
:::::: The code at line 325 was first introduced by commit
:::::: dee05308f6029caed91e1a015cafb1545958ba27 Staging/iio/adc/touchscreen/MXS: add interrupt driven touch detection
:::::: TO: Juergen Beisert <[email protected]>
:::::: CC: Jonathan Cameron <[email protected]>
---
0-DAY kernel test infrastructure Open Source Technology Center
https://lists.01.org/pipermail/kbuild-all Intel Corporation
On 09/11/15 14:40, kbuild test robot wrote:
> Hi Nizam,
Wow, this one opens up a can of worms that as far as I can tell is in no
way actually connected to your patch Nizam!
(just in case you were wondering).
I'm not actually certain what did trigger this.
Right now I haven't found any cases that actually overflow but
maybe I'm missing something...
>
> [auto build test WARNING on staging/staging-testing]
> [also build test WARNING on v4.3 next-20151109]
>
> url: https://github.com/0day-ci/linux/commits/Nizam-Haider/iio-adc-mxs-lradc-Prefer-using-the-BIT-macro/20151109-222735
> config: sparc64-allyesconfig (attached as .config)
> reproduce:
> wget https://git.kernel.org/cgit/linux/kernel/git/wfg/lkp-tests.git/plain/sbin/make.cross -O ~/bin/make.cross
> chmod +x ~/bin/make.cross
> # save the attached .config to linux build tree
> make.cross ARCH=sparc64
>
> All warnings (new ones prefixed by >>):
>
> drivers/staging/iio/adc/mxs-lradc.c: In function 'mxs_lradc_complete_touch_event':
>>> drivers/staging/iio/adc/mxs-lradc.c:325:5: warning: large integer implicitly truncated to unsigned type [-Woverflow]
> (((x) << LRADC_DELAY_TRIGGER_LRADCS_OFFSET) & \
> ^
>>> drivers/staging/iio/adc/mxs-lradc.c:734:7: note: in expansion of macro 'LRADC_DELAY_TRIGGER'
> LRADC_DELAY_TRIGGER(1 << TOUCHSCREEN_VCHANNEL1) |
> ^
> drivers/staging/iio/adc/mxs-lradc.c: In function 'mxs_lradc_buffer_preenable':
> drivers/staging/iio/adc/mxs-lradc.c:322:42: warning: large integer implicitly truncated to unsigned type [-Woverflow]
> #define LRADC_DELAY_TRIGGER_LRADCS_MASK (0xff << 24)
> ^
>>> drivers/staging/iio/adc/mxs-lradc.c:1308:29: note: in expansion of macro 'LRADC_DELAY_TRIGGER_LRADCS_MASK'
> mxs_lradc_reg_clear(lradc, LRADC_DELAY_TRIGGER_LRADCS_MASK |
> ^
> drivers/staging/iio/adc/mxs-lradc.c: In function 'mxs_lradc_buffer_postdisable':
> drivers/staging/iio/adc/mxs-lradc.c:322:42: warning: large integer implicitly truncated to unsigned type [-Woverflow]
> #define LRADC_DELAY_TRIGGER_LRADCS_MASK (0xff << 24)
> ^
> drivers/staging/iio/adc/mxs-lradc.c:1327:29: note: in expansion of macro 'LRADC_DELAY_TRIGGER_LRADCS_MASK'
> mxs_lradc_reg_clear(lradc, LRADC_DELAY_TRIGGER_LRADCS_MASK |
> ^
>
> vim +325 drivers/staging/iio/adc/mxs-lradc.c
>
> 06ddd353 Marek Vasut 2013-01-11 309 #define LRADC_STATUS 0x40
> 418880f5 Haneen Mohammed 2015-03-26 310 #define LRADC_STATUS_TOUCH_DETECT_RAW BIT(0)
> 06ddd353 Marek Vasut 2013-01-11 311
> bc2c90c9 Marek Vasut 2012-08-12 312 #define LRADC_CH(n) (0x50 + (0x10 * (n)))
> 418880f5 Haneen Mohammed 2015-03-26 313 #define LRADC_CH_ACCUMULATE BIT(29)
> bc2c90c9 Marek Vasut 2012-08-12 314 #define LRADC_CH_NUM_SAMPLES_MASK (0x1f << 24)
> bc2c90c9 Marek Vasut 2012-08-12 315 #define LRADC_CH_NUM_SAMPLES_OFFSET 24
> dee05308 Juergen Beisert 2013-09-23 316 #define LRADC_CH_NUM_SAMPLES(x) \
> dee05308 Juergen Beisert 2013-09-23 317 ((x) << LRADC_CH_NUM_SAMPLES_OFFSET)
> bc2c90c9 Marek Vasut 2012-08-12 318 #define LRADC_CH_VALUE_MASK 0x3ffff
> bc2c90c9 Marek Vasut 2012-08-12 319 #define LRADC_CH_VALUE_OFFSET 0
> bc2c90c9 Marek Vasut 2012-08-12 320
> bc2c90c9 Marek Vasut 2012-08-12 321 #define LRADC_DELAY(n) (0xd0 + (0x10 * (n)))
> bc2c90c9 Marek Vasut 2012-08-12 322 #define LRADC_DELAY_TRIGGER_LRADCS_MASK (0xff << 24)
> bc2c90c9 Marek Vasut 2012-08-12 323 #define LRADC_DELAY_TRIGGER_LRADCS_OFFSET 24
> dee05308 Juergen Beisert 2013-09-23 324 #define LRADC_DELAY_TRIGGER(x) \
> dee05308 Juergen Beisert 2013-09-23 @325 (((x) << LRADC_DELAY_TRIGGER_LRADCS_OFFSET) & \
> dee05308 Juergen Beisert 2013-09-23 326 LRADC_DELAY_TRIGGER_LRADCS_MASK)
> 33365872 Nizam Haider 2015-11-09 327 #define LRADC_DELAY_KICK BIT(20)
> bc2c90c9 Marek Vasut 2012-08-12 328 #define LRADC_DELAY_TRIGGER_DELAYS_MASK (0xf << 16)
> bc2c90c9 Marek Vasut 2012-08-12 329 #define LRADC_DELAY_TRIGGER_DELAYS_OFFSET 16
> dee05308 Juergen Beisert 2013-09-23 330 #define LRADC_DELAY_TRIGGER_DELAYS(x) \
> dee05308 Juergen Beisert 2013-09-23 331 (((x) << LRADC_DELAY_TRIGGER_DELAYS_OFFSET) & \
> dee05308 Juergen Beisert 2013-09-23 332 LRADC_DELAY_TRIGGER_DELAYS_MASK)
> bc2c90c9 Marek Vasut 2012-08-12 333 #define LRADC_DELAY_LOOP_COUNT_MASK (0x1f << 11)
>
> :::::: The code at line 325 was first introduced by commit
> :::::: dee05308f6029caed91e1a015cafb1545958ba27 Staging/iio/adc/touchscreen/MXS: add interrupt driven touch detection
>
> :::::: TO: Juergen Beisert <[email protected]>
> :::::: CC: Jonathan Cameron <[email protected]>
>
> ---
> 0-DAY kernel test infrastructure Open Source Technology Center
> https://lists.01.org/pipermail/kbuild-all Intel Corporation
>
On 09/11/15 14:26, Nizam Haider wrote:
> Replaces bit shifting on 1 with the BIT(x) macro
>
> Signed-off-by: Nizam Haider <[email protected]>
Applied to the togreg branch of iio.git - guess I'm going to start
getting the autobuilder warnings shortly!
Will be pushed out as testing for the autobuilders to play with it.
Jonathan
> ---
> drivers/staging/iio/adc/mxs-lradc.c | 2 +-
> 1 file changed, 1 insertion(+), 1 deletion(-)
>
> diff --git a/drivers/staging/iio/adc/mxs-lradc.c b/drivers/staging/iio/adc/mxs-lradc.c
> index d997d9c..5f1375c 100644
> --- a/drivers/staging/iio/adc/mxs-lradc.c
> +++ b/drivers/staging/iio/adc/mxs-lradc.c
> @@ -324,7 +324,7 @@ struct mxs_lradc {
> #define LRADC_DELAY_TRIGGER(x) \
> (((x) << LRADC_DELAY_TRIGGER_LRADCS_OFFSET) & \
> LRADC_DELAY_TRIGGER_LRADCS_MASK)
> -#define LRADC_DELAY_KICK (1 << 20)
> +#define LRADC_DELAY_KICK BIT(20)
> #define LRADC_DELAY_TRIGGER_DELAYS_MASK (0xf << 16)
> #define LRADC_DELAY_TRIGGER_DELAYS_OFFSET 16
> #define LRADC_DELAY_TRIGGER_DELAYS(x) \
>