drivers/iio/adc/ad7380.c | 76 ++++++++++++++++++++++++------------------------ 1 file changed, 38 insertions(+), 38 deletions(-)
Replace usage of iio_device_claim_direct_scoped() with
if_not_cond_guard().
This makes fewer lines of code, less indentation, avoids having the
error return statement in the macro args, and avoids needing to use
unreachable().
Signed-off-by: David Lechner <dlechner@baylibre.com>
---
This is addressing the build failure reported on Peter's locking/test
branch [1]. I've done a test compile locally with LLVM=1 and it compiles
successfully.
[1]: https://lore.kernel.org/oe-kbuild-all/202410240802.VMztsHsW-lkp@intel.com/
---
Changes in v2:
- Add {} around case statements to avoid clang compiler error
- Link to v1: https://lore.kernel.org/r/20241001-cleanup-if_not_cond_guard-v1-0-7753810b0f7a@baylibre.com
---
drivers/iio/adc/ad7380.c | 76 ++++++++++++++++++++++++------------------------
1 file changed, 38 insertions(+), 38 deletions(-)
diff --git a/drivers/iio/adc/ad7380.c b/drivers/iio/adc/ad7380.c
index e8bddfb0d07d..34adc5aeb6f3 100644
--- a/drivers/iio/adc/ad7380.c
+++ b/drivers/iio/adc/ad7380.c
@@ -569,15 +569,15 @@ static const struct regmap_config ad7380_regmap_config = {
static int ad7380_debugfs_reg_access(struct iio_dev *indio_dev, u32 reg,
u32 writeval, u32 *readval)
{
- iio_device_claim_direct_scoped(return -EBUSY, indio_dev) {
- struct ad7380_state *st = iio_priv(indio_dev);
+ struct ad7380_state *st = iio_priv(indio_dev);
- if (readval)
- return regmap_read(st->regmap, reg, readval);
- else
- return regmap_write(st->regmap, reg, writeval);
- }
- unreachable();
+ if_not_cond_guard(iio_claim_direct_try, indio_dev)
+ return -EBUSY;
+
+ if (readval)
+ return regmap_read(st->regmap, reg, readval);
+
+ return regmap_write(st->regmap, reg, writeval);
}
/*
@@ -819,12 +819,12 @@ static int ad7380_read_raw(struct iio_dev *indio_dev,
return PTR_ERR(scan_type);
switch (info) {
- case IIO_CHAN_INFO_RAW:
- iio_device_claim_direct_scoped(return -EBUSY, indio_dev) {
- return ad7380_read_direct(st, chan->scan_index,
- scan_type, val);
- }
- unreachable();
+ case IIO_CHAN_INFO_RAW: {
+ if_not_cond_guard(iio_claim_direct_try, indio_dev)
+ return -EBUSY;
+
+ return ad7380_read_direct(st, chan->scan_index, scan_type, val);
+ }
case IIO_CHAN_INFO_SCALE:
/*
* According to the datasheet, the LSB size is:
@@ -901,7 +901,7 @@ static int ad7380_write_raw(struct iio_dev *indio_dev,
int ret, osr, boost;
switch (mask) {
- case IIO_CHAN_INFO_OVERSAMPLING_RATIO:
+ case IIO_CHAN_INFO_OVERSAMPLING_RATIO: {
osr = ad7380_osr_to_regval(val);
if (osr < 0)
return osr;
@@ -909,31 +909,31 @@ static int ad7380_write_raw(struct iio_dev *indio_dev,
/* always enable resolution boost when oversampling is enabled */
boost = osr > 0 ? 1 : 0;
- iio_device_claim_direct_scoped(return -EBUSY, indio_dev) {
- ret = regmap_update_bits(st->regmap,
- AD7380_REG_ADDR_CONFIG1,
- AD7380_CONFIG1_OSR | AD7380_CONFIG1_RES,
- FIELD_PREP(AD7380_CONFIG1_OSR, osr) |
- FIELD_PREP(AD7380_CONFIG1_RES, boost));
+ if_not_cond_guard(iio_claim_direct_try, indio_dev)
+ return -EBUSY;
- if (ret)
- return ret;
+ ret = regmap_update_bits(st->regmap,
+ AD7380_REG_ADDR_CONFIG1,
+ AD7380_CONFIG1_OSR | AD7380_CONFIG1_RES,
+ FIELD_PREP(AD7380_CONFIG1_OSR, osr) |
+ FIELD_PREP(AD7380_CONFIG1_RES, boost));
- st->oversampling_ratio = val;
- st->resolution_boost_enabled = boost;
-
- /*
- * Perform a soft reset. This will flush the oversampling
- * block and FIFO but will maintain the content of the
- * configurable registers.
- */
- return regmap_update_bits(st->regmap,
- AD7380_REG_ADDR_CONFIG2,
- AD7380_CONFIG2_RESET,
- FIELD_PREP(AD7380_CONFIG2_RESET,
- AD7380_CONFIG2_RESET_SOFT));
- }
- unreachable();
+ if (ret)
+ return ret;
+
+ st->oversampling_ratio = val;
+ st->resolution_boost_enabled = boost;
+
+ /*
+ * Perform a soft reset. This will flush the oversampling block
+ * and FIFO but will maintain the content of the configurable
+ * registers.
+ */
+ return regmap_update_bits(st->regmap, AD7380_REG_ADDR_CONFIG2,
+ AD7380_CONFIG2_RESET,
+ FIELD_PREP(AD7380_CONFIG2_RESET,
+ AD7380_CONFIG2_RESET_SOFT));
+ }
default:
return -EINVAL;
}
---
base-commit: 431c39f6d3edbab14f48dbf37a58ccdc0ac3be1e
change-id: 20241001-cleanup-if_not_cond_guard-0981d867ddf8
Best regards,
--
David Lechner <dlechner@baylibre.com>Hi David,
kernel test robot noticed the following build errors:
[auto build test ERROR on 431c39f6d3edbab14f48dbf37a58ccdc0ac3be1e]
url: https://github.com/intel-lab-lkp/linux/commits/David-Lechner/iio-adc-ad7380-use-if_not_cond_guard-for-claim-direct/20241025-001415
base: 431c39f6d3edbab14f48dbf37a58ccdc0ac3be1e
patch link: https://lore.kernel.org/r/20241024-cleanup-if_not_cond_guard-v2-1-1bef98c9fd2e%40baylibre.com
patch subject: [PATCH v2] iio: adc: ad7380: use if_not_cond_guard for claim direct
config: arm-randconfig-001-20241027 (https://download.01.org/0day-ci/archive/20241027/202410271212.2EFjrzX0-lkp@intel.com/config)
compiler: clang version 20.0.0git (https://github.com/llvm/llvm-project 5886454669c3c9026f7f27eab13509dd0241f2d6)
reproduce (this is a W=1 build): (https://download.01.org/0day-ci/archive/20241027/202410271212.2EFjrzX0-lkp@intel.com/reproduce)
If you fix the issue in a separate patch/commit (i.e. not just a new version of
the same patch/commit), kindly add following tags
| Reported-by: kernel test robot <lkp@intel.com>
| Closes: https://lore.kernel.org/oe-kbuild-all/202410271212.2EFjrzX0-lkp@intel.com/
All errors (new ones prefixed by >>):
In file included from drivers/iio/adc/ad7380.c:27:
In file included from include/linux/regulator/consumer.h:35:
In file included from include/linux/suspend.h:5:
In file included from include/linux/swap.h:9:
In file included from include/linux/memcontrol.h:21:
In file included from include/linux/mm.h:2213:
include/linux/vmstat.h:518:36: warning: arithmetic between different enumeration types ('enum node_stat_item' and 'enum lru_list') [-Wenum-enum-conversion]
518 | return node_stat_name(NR_LRU_BASE + lru) + 3; // skip "nr_"
| ~~~~~~~~~~~ ^ ~~~
>> drivers/iio/adc/ad7380.c:574:2: error: call to undeclared function 'if_not_cond_guard'; ISO C99 and later do not support implicit function declarations [-Wimplicit-function-declaration]
574 | if_not_cond_guard(iio_claim_direct_try, indio_dev)
| ^
>> drivers/iio/adc/ad7380.c:574:52: error: expected ';' after expression
574 | if_not_cond_guard(iio_claim_direct_try, indio_dev)
| ^
| ;
>> drivers/iio/adc/ad7380.c:574:20: error: use of undeclared identifier 'iio_claim_direct_try'
574 | if_not_cond_guard(iio_claim_direct_try, indio_dev)
| ^
drivers/iio/adc/ad7380.c:823:3: error: call to undeclared function 'if_not_cond_guard'; ISO C99 and later do not support implicit function declarations [-Wimplicit-function-declaration]
823 | if_not_cond_guard(iio_claim_direct_try, indio_dev)
| ^
drivers/iio/adc/ad7380.c:823:53: error: expected ';' after expression
823 | if_not_cond_guard(iio_claim_direct_try, indio_dev)
| ^
| ;
drivers/iio/adc/ad7380.c:823:21: error: use of undeclared identifier 'iio_claim_direct_try'
823 | if_not_cond_guard(iio_claim_direct_try, indio_dev)
| ^
drivers/iio/adc/ad7380.c:912:3: error: call to undeclared function 'if_not_cond_guard'; ISO C99 and later do not support implicit function declarations [-Wimplicit-function-declaration]
912 | if_not_cond_guard(iio_claim_direct_try, indio_dev)
| ^
drivers/iio/adc/ad7380.c:912:53: error: expected ';' after expression
912 | if_not_cond_guard(iio_claim_direct_try, indio_dev)
| ^
| ;
drivers/iio/adc/ad7380.c:912:21: error: use of undeclared identifier 'iio_claim_direct_try'
912 | if_not_cond_guard(iio_claim_direct_try, indio_dev)
| ^
1 warning and 9 errors generated.
vim +/if_not_cond_guard +574 drivers/iio/adc/ad7380.c
568
569 static int ad7380_debugfs_reg_access(struct iio_dev *indio_dev, u32 reg,
570 u32 writeval, u32 *readval)
571 {
572 struct ad7380_state *st = iio_priv(indio_dev);
573
> 574 if_not_cond_guard(iio_claim_direct_try, indio_dev)
575 return -EBUSY;
576
577 if (readval)
578 return regmap_read(st->regmap, reg, readval);
579
580 return regmap_write(st->regmap, reg, writeval);
581 }
582
--
0-DAY CI Kernel Test Service
https://github.com/intel/lkp-tests/wiki
Hi David,
kernel test robot noticed the following build errors:
[auto build test ERROR on 431c39f6d3edbab14f48dbf37a58ccdc0ac3be1e]
url: https://github.com/intel-lab-lkp/linux/commits/David-Lechner/iio-adc-ad7380-use-if_not_cond_guard-for-claim-direct/20241025-001415
base: 431c39f6d3edbab14f48dbf37a58ccdc0ac3be1e
patch link: https://lore.kernel.org/r/20241024-cleanup-if_not_cond_guard-v2-1-1bef98c9fd2e%40baylibre.com
patch subject: [PATCH v2] iio: adc: ad7380: use if_not_cond_guard for claim direct
config: i386-allmodconfig (https://download.01.org/0day-ci/archive/20241027/202410271218.9sti93hi-lkp@intel.com/config)
compiler: gcc-12 (Debian 12.2.0-14) 12.2.0
reproduce (this is a W=1 build): (https://download.01.org/0day-ci/archive/20241027/202410271218.9sti93hi-lkp@intel.com/reproduce)
If you fix the issue in a separate patch/commit (i.e. not just a new version of
the same patch/commit), kindly add following tags
| Reported-by: kernel test robot <lkp@intel.com>
| Closes: https://lore.kernel.org/oe-kbuild-all/202410271218.9sti93hi-lkp@intel.com/
All errors (new ones prefixed by >>):
drivers/iio/adc/ad7380.c: In function 'ad7380_debugfs_reg_access':
>> drivers/iio/adc/ad7380.c:574:9: error: implicit declaration of function 'if_not_cond_guard' [-Werror=implicit-function-declaration]
574 | if_not_cond_guard(iio_claim_direct_try, indio_dev)
| ^~~~~~~~~~~~~~~~~
>> drivers/iio/adc/ad7380.c:574:27: error: 'iio_claim_direct_try' undeclared (first use in this function); did you mean 'class_iio_claim_direct_try_t'?
574 | if_not_cond_guard(iio_claim_direct_try, indio_dev)
| ^~~~~~~~~~~~~~~~~~~~
| class_iio_claim_direct_try_t
drivers/iio/adc/ad7380.c:574:27: note: each undeclared identifier is reported only once for each function it appears in
>> drivers/iio/adc/ad7380.c:574:59: error: expected ';' before 'return'
574 | if_not_cond_guard(iio_claim_direct_try, indio_dev)
| ^
| ;
575 | return -EBUSY;
| ~~~~~~
drivers/iio/adc/ad7380.c: In function 'ad7380_read_raw':
drivers/iio/adc/ad7380.c:823:35: error: 'iio_claim_direct_try' undeclared (first use in this function); did you mean 'class_iio_claim_direct_try_t'?
823 | if_not_cond_guard(iio_claim_direct_try, indio_dev)
| ^~~~~~~~~~~~~~~~~~~~
| class_iio_claim_direct_try_t
drivers/iio/adc/ad7380.c:823:67: error: expected ';' before 'return'
823 | if_not_cond_guard(iio_claim_direct_try, indio_dev)
| ^
| ;
824 | return -EBUSY;
| ~~~~~~
drivers/iio/adc/ad7380.c: In function 'ad7380_write_raw':
drivers/iio/adc/ad7380.c:912:35: error: 'iio_claim_direct_try' undeclared (first use in this function); did you mean 'class_iio_claim_direct_try_t'?
912 | if_not_cond_guard(iio_claim_direct_try, indio_dev)
| ^~~~~~~~~~~~~~~~~~~~
| class_iio_claim_direct_try_t
drivers/iio/adc/ad7380.c:912:67: error: expected ';' before 'return'
912 | if_not_cond_guard(iio_claim_direct_try, indio_dev)
| ^
| ;
913 | return -EBUSY;
| ~~~~~~
cc1: some warnings being treated as errors
Kconfig warnings: (for reference only)
WARNING: unmet direct dependencies detected for MODVERSIONS
Depends on [n]: MODULES [=y] && !COMPILE_TEST [=y]
Selected by [y]:
- RANDSTRUCT_FULL [=y] && (CC_HAS_RANDSTRUCT [=n] || GCC_PLUGINS [=y]) && MODULES [=y]
WARNING: unmet direct dependencies detected for GET_FREE_REGION
Depends on [n]: SPARSEMEM [=n]
Selected by [m]:
- RESOURCE_KUNIT_TEST [=m] && RUNTIME_TESTING_MENU [=y] && KUNIT [=m]
vim +/if_not_cond_guard +574 drivers/iio/adc/ad7380.c
568
569 static int ad7380_debugfs_reg_access(struct iio_dev *indio_dev, u32 reg,
570 u32 writeval, u32 *readval)
571 {
572 struct ad7380_state *st = iio_priv(indio_dev);
573
> 574 if_not_cond_guard(iio_claim_direct_try, indio_dev)
575 return -EBUSY;
576
577 if (readval)
578 return regmap_read(st->regmap, reg, readval);
579
580 return regmap_write(st->regmap, reg, writeval);
581 }
582
--
0-DAY CI Kernel Test Service
https://github.com/intel/lkp-tests/wiki
On Thu, Oct 24, 2024 at 11:12:10AM -0500, David Lechner wrote: > Replace usage of iio_device_claim_direct_scoped() with > if_not_cond_guard(). > > This makes fewer lines of code, less indentation, avoids having the > error return statement in the macro args, and avoids needing to use > unreachable(). > > Signed-off-by: David Lechner <dlechner@baylibre.com> > --- > This is addressing the build failure reported on Peter's locking/test > branch [1]. I've done a test compile locally with LLVM=1 and it compiles > successfully. Updated it. Do note, I had to still: s/if_not_cond_guard/if_not_guard/g on this. Assuming it all builds now, I'll push out the two cleanup patches to tip.
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