Re: [PATCH] staging: greybus: loopback: fix up checkpath macro do while error.

From: kernel test robot
Date: Sun Apr 02 2023 - 09:59:10 EST

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In reply to: Ángel Alberto Carretero: "Re: [PATCH] staging: greybus: loopback: fix up checkpath macro do while error."
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Hi Angel,

Thank you for the patch! Yet something to improve:

[auto build test ERROR on staging/staging-testing]

url: https://github.com/intel-lab-lkp/linux/commits/Angel-Alberto-Carretero/staging-greybus-loopback-fix-up-checkpath-macro-do-while-error/20230402-202947
patch link: https://lore.kernel.org/r/20230402122550.70682-1-angelalbertoc.r%40gmail.com
patch subject: [PATCH] staging: greybus: loopback: fix up checkpath macro do while error.
config: s390-allyesconfig (https://download.01.org/0day-ci/archive/20230402/202304022121.KVyCEi5L-lkp@xxxxxxxxx/config)
compiler: s390-linux-gcc (GCC) 12.1.0
reproduce (this is a W=1 build):
wget https://raw.githubusercontent.com/intel/lkp-tests/master/sbin/make.cross -O ~/bin/make.cross
chmod +x ~/bin/make.cross
# https://github.com/intel-lab-lkp/linux/commit/dde52ce766c90df88bcff2890c586240c7a971ab
git remote add linux-review https://github.com/intel-lab-lkp/linux
git fetch --no-tags linux-review Angel-Alberto-Carretero/staging-greybus-loopback-fix-up-checkpath-macro-do-while-error/20230402-202947
git checkout dde52ce766c90df88bcff2890c586240c7a971ab
# save the config file
mkdir build_dir && cp config build_dir/.config
COMPILER_INSTALL_PATH=$HOME/0day COMPILER=gcc-12.1.0 make.cross W=1 O=build_dir ARCH=s390 olddefconfig
COMPILER_INSTALL_PATH=$HOME/0day COMPILER=gcc-12.1.0 make.cross W=1 O=build_dir ARCH=s390 SHELL=/bin/bash drivers/staging/

If you fix the issue, kindly add following tag where applicable
| Reported-by: kernel test robot <lkp@xxxxxxxxx>
| Link: https://lore.kernel.org/oe-kbuild-all/202304022121.KVyCEi5L-lkp@xxxxxxxxx/

All errors (new ones prefixed by >>):

>> drivers/staging/greybus/loopback.c:166:9: error: expected identifier or '(' before 'do'
166 | do { \
| ^~
drivers/staging/greybus/loopback.c:273:1: note: in expansion of macro 'gb_loopback_stats_attrs'
273 | gb_loopback_stats_attrs(latency);
| ^~~~~~~~~~~~~~~~~~~~~~~
>> drivers/staging/greybus/loopback.c:170:11: error: expected identifier or '(' before 'while'
170 | } while (0)
| ^~~~~
drivers/staging/greybus/loopback.c:273:1: note: in expansion of macro 'gb_loopback_stats_attrs'
273 | gb_loopback_stats_attrs(latency);
| ^~~~~~~~~~~~~~~~~~~~~~~
>> drivers/staging/greybus/loopback.c:166:9: error: expected identifier or '(' before 'do'
166 | do { \
| ^~
drivers/staging/greybus/loopback.c:275:1: note: in expansion of macro 'gb_loopback_stats_attrs'
275 | gb_loopback_stats_attrs(requests_per_second);
| ^~~~~~~~~~~~~~~~~~~~~~~
>> drivers/staging/greybus/loopback.c:170:11: error: expected identifier or '(' before 'while'
170 | } while (0)
| ^~~~~
drivers/staging/greybus/loopback.c:275:1: note: in expansion of macro 'gb_loopback_stats_attrs'
275 | gb_loopback_stats_attrs(requests_per_second);
| ^~~~~~~~~~~~~~~~~~~~~~~
>> drivers/staging/greybus/loopback.c:166:9: error: expected identifier or '(' before 'do'
166 | do { \
| ^~
drivers/staging/greybus/loopback.c:277:1: note: in expansion of macro 'gb_loopback_stats_attrs'
277 | gb_loopback_stats_attrs(throughput);
| ^~~~~~~~~~~~~~~~~~~~~~~
>> drivers/staging/greybus/loopback.c:170:11: error: expected identifier or '(' before 'while'
170 | } while (0)
| ^~~~~
drivers/staging/greybus/loopback.c:277:1: note: in expansion of macro 'gb_loopback_stats_attrs'
277 | gb_loopback_stats_attrs(throughput);
| ^~~~~~~~~~~~~~~~~~~~~~~
>> drivers/staging/greybus/loopback.c:166:9: error: expected identifier or '(' before 'do'
166 | do { \
| ^~
drivers/staging/greybus/loopback.c:279:1: note: in expansion of macro 'gb_loopback_stats_attrs'
279 | gb_loopback_stats_attrs(apbridge_unipro_latency);
| ^~~~~~~~~~~~~~~~~~~~~~~
>> drivers/staging/greybus/loopback.c:170:11: error: expected identifier or '(' before 'while'
170 | } while (0)
| ^~~~~
drivers/staging/greybus/loopback.c:279:1: note: in expansion of macro 'gb_loopback_stats_attrs'
279 | gb_loopback_stats_attrs(apbridge_unipro_latency);
| ^~~~~~~~~~~~~~~~~~~~~~~
>> drivers/staging/greybus/loopback.c:166:9: error: expected identifier or '(' before 'do'
166 | do { \
| ^~
drivers/staging/greybus/loopback.c:281:1: note: in expansion of macro 'gb_loopback_stats_attrs'
281 | gb_loopback_stats_attrs(gbphy_firmware_latency);
| ^~~~~~~~~~~~~~~~~~~~~~~
>> drivers/staging/greybus/loopback.c:170:11: error: expected identifier or '(' before 'while'
170 | } while (0)
| ^~~~~
drivers/staging/greybus/loopback.c:281:1: note: in expansion of macro 'gb_loopback_stats_attrs'
281 | gb_loopback_stats_attrs(gbphy_firmware_latency);
| ^~~~~~~~~~~~~~~~~~~~~~~
>> drivers/staging/greybus/loopback.c:319:10: error: 'dev_attr_latency_min' undeclared here (not in a function); did you mean 'dev_attr_timeout_min'?
319 | &dev_attr_latency_min.attr,
| ^~~~~~~~~~~~~~~~~~~~
| dev_attr_timeout_min
>> drivers/staging/greybus/loopback.c:320:10: error: 'dev_attr_latency_max' undeclared here (not in a function); did you mean 'dev_attr_timeout_max'?
320 | &dev_attr_latency_max.attr,
| ^~~~~~~~~~~~~~~~~~~~
| dev_attr_timeout_max
>> drivers/staging/greybus/loopback.c:321:10: error: 'dev_attr_latency_avg' undeclared here (not in a function)
321 | &dev_attr_latency_avg.attr,
| ^~~~~~~~~~~~~~~~~~~~
>> drivers/staging/greybus/loopback.c:322:10: error: 'dev_attr_requests_per_second_min' undeclared here (not in a function)
322 | &dev_attr_requests_per_second_min.attr,
| ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
>> drivers/staging/greybus/loopback.c:323:10: error: 'dev_attr_requests_per_second_max' undeclared here (not in a function)
323 | &dev_attr_requests_per_second_max.attr,
| ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
>> drivers/staging/greybus/loopback.c:324:10: error: 'dev_attr_requests_per_second_avg' undeclared here (not in a function)
324 | &dev_attr_requests_per_second_avg.attr,
| ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
>> drivers/staging/greybus/loopback.c:325:10: error: 'dev_attr_throughput_min' undeclared here (not in a function); did you mean 'dev_attr_timeout_min'?
325 | &dev_attr_throughput_min.attr,
| ^~~~~~~~~~~~~~~~~~~~~~~
| dev_attr_timeout_min
>> drivers/staging/greybus/loopback.c:326:10: error: 'dev_attr_throughput_max' undeclared here (not in a function); did you mean 'dev_attr_timeout_max'?
326 | &dev_attr_throughput_max.attr,
| ^~~~~~~~~~~~~~~~~~~~~~~
| dev_attr_timeout_max
>> drivers/staging/greybus/loopback.c:327:10: error: 'dev_attr_throughput_avg' undeclared here (not in a function)
327 | &dev_attr_throughput_avg.attr,
| ^~~~~~~~~~~~~~~~~~~~~~~
>> drivers/staging/greybus/loopback.c:328:10: error: 'dev_attr_apbridge_unipro_latency_min' undeclared here (not in a function)
328 | &dev_attr_apbridge_unipro_latency_min.attr,
| ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
drivers/staging/greybus/loopback.c:329:10: error: 'dev_attr_apbridge_unipro_latency_max' undeclared here (not in a function)
329 | &dev_attr_apbridge_unipro_latency_max.attr,
| ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
drivers/staging/greybus/loopback.c:330:10: error: 'dev_attr_apbridge_unipro_latency_avg' undeclared here (not in a function)
330 | &dev_attr_apbridge_unipro_latency_avg.attr,
| ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
drivers/staging/greybus/loopback.c:331:10: error: 'dev_attr_gbphy_firmware_latency_min' undeclared here (not in a function)
331 | &dev_attr_gbphy_firmware_latency_min.attr,
| ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
drivers/staging/greybus/loopback.c:332:10: error: 'dev_attr_gbphy_firmware_latency_max' undeclared here (not in a function)
332 | &dev_attr_gbphy_firmware_latency_max.attr,
| ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
drivers/staging/greybus/loopback.c:333:10: error: 'dev_attr_gbphy_firmware_latency_avg' undeclared here (not in a function)
333 | &dev_attr_gbphy_firmware_latency_avg.attr,
| ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~

vim +166 drivers/staging/greybus/loopback.c

164
165 #define gb_loopback_stats_attrs(field) \
> 166 do { \
167 gb_loopback_ro_stats_attr(field, min, u); \
168 gb_loopback_ro_stats_attr(field, max, u); \
169 gb_loopback_ro_avg_attr(field); \
> 170 } while (0)
171
172 #define gb_loopback_attr(field, type) \
173 static ssize_t field##_show(struct device *dev, \
174 struct device_attribute *attr, \
175 char *buf) \
176 { \
177 struct gb_loopback *gb = dev_get_drvdata(dev); \
178 return sprintf(buf, "%" #type "\n", gb->field); \
179 } \
180 static ssize_t field##_store(struct device *dev, \
181 struct device_attribute *attr, \
182 const char *buf, \
183 size_t len) \
184 { \
185 int ret; \
186 struct gb_loopback *gb = dev_get_drvdata(dev); \
187 mutex_lock(&gb->mutex); \
188 ret = sscanf(buf, "%"#type, &gb->field); \
189 if (ret != 1) \
190 len = -EINVAL; \
191 else \
192 gb_loopback_check_attr(gb, bundle); \
193 mutex_unlock(&gb->mutex); \
194 return len; \
195 } \
196 static DEVICE_ATTR_RW(field)
197
198 #define gb_dev_loopback_ro_attr(field, conn) \
199 static ssize_t field##_show(struct device *dev, \
200 struct device_attribute *attr, \
201 char *buf) \
202 { \
203 struct gb_loopback *gb = dev_get_drvdata(dev); \
204 return sprintf(buf, "%u\n", gb->field); \
205 } \
206 static DEVICE_ATTR_RO(field)
207
208 #define gb_dev_loopback_rw_attr(field, type) \
209 static ssize_t field##_show(struct device *dev, \
210 struct device_attribute *attr, \
211 char *buf) \
212 { \
213 struct gb_loopback *gb = dev_get_drvdata(dev); \
214 return sprintf(buf, "%" #type "\n", gb->field); \
215 } \
216 static ssize_t field##_store(struct device *dev, \
217 struct device_attribute *attr, \
218 const char *buf, \
219 size_t len) \
220 { \
221 int ret; \
222 struct gb_loopback *gb = dev_get_drvdata(dev); \
223 mutex_lock(&gb->mutex); \
224 ret = sscanf(buf, "%"#type, &gb->field); \
225 if (ret != 1) \
226 len = -EINVAL; \
227 else \
228 gb_loopback_check_attr(gb); \
229 mutex_unlock(&gb->mutex); \
230 return len; \
231 } \
232 static DEVICE_ATTR_RW(field)
233
234 static void gb_loopback_reset_stats(struct gb_loopback *gb);
235 static void gb_loopback_check_attr(struct gb_loopback *gb)
236 {
237 if (gb->us_wait > GB_LOOPBACK_US_WAIT_MAX)
238 gb->us_wait = GB_LOOPBACK_US_WAIT_MAX;
239 if (gb->size > gb_dev.size_max)
240 gb->size = gb_dev.size_max;
241 gb->requests_timedout = 0;
242 gb->requests_completed = 0;
243 gb->iteration_count = 0;
244 gb->send_count = 0;
245 gb->error = 0;
246
247 if (kfifo_depth < gb->iteration_max) {
248 dev_warn(gb->dev,
249 "cannot log bytes %u kfifo_depth %u\n",
250 gb->iteration_max, kfifo_depth);
251 }
252 kfifo_reset_out(&gb->kfifo_lat);
253
254 switch (gb->type) {
255 case GB_LOOPBACK_TYPE_PING:
256 case GB_LOOPBACK_TYPE_TRANSFER:
257 case GB_LOOPBACK_TYPE_SINK:
258 gb->jiffy_timeout = usecs_to_jiffies(gb->timeout);
259 if (!gb->jiffy_timeout)
260 gb->jiffy_timeout = GB_LOOPBACK_TIMEOUT_MIN;
261 else if (gb->jiffy_timeout > GB_LOOPBACK_TIMEOUT_MAX)
262 gb->jiffy_timeout = GB_LOOPBACK_TIMEOUT_MAX;
263 gb_loopback_reset_stats(gb);
264 wake_up(&gb->wq);
265 break;
266 default:
267 gb->type = 0;
268 break;
269 }
270 }
271
272 /* Time to send and receive one message */
273 gb_loopback_stats_attrs(latency);
274 /* Number of requests sent per second on this cport */
275 gb_loopback_stats_attrs(requests_per_second);
276 /* Quantity of data sent and received on this cport */
277 gb_loopback_stats_attrs(throughput);
278 /* Latency across the UniPro link from APBridge's perspective */
279 gb_loopback_stats_attrs(apbridge_unipro_latency);
280 /* Firmware induced overhead in the GPBridge */
> 281 gb_loopback_stats_attrs(gbphy_firmware_latency);
282
283 /* Number of errors encountered during loop */
284 gb_loopback_ro_attr(error);
285 /* Number of requests successfully completed async */
286 gb_loopback_ro_attr(requests_completed);
287 /* Number of requests timed out async */
288 gb_loopback_ro_attr(requests_timedout);
289 /* Timeout minimum in useconds */
290 gb_loopback_ro_attr(timeout_min);
291 /* Timeout minimum in useconds */
292 gb_loopback_ro_attr(timeout_max);
293
294 /*
295 * Type of loopback message to send based on protocol type definitions
296 * 0 => Don't send message
297 * 2 => Send ping message continuously (message without payload)
298 * 3 => Send transfer message continuously (message with payload,
299 * payload returned in response)
300 * 4 => Send a sink message (message with payload, no payload in response)
301 */
302 gb_dev_loopback_rw_attr(type, d);
303 /* Size of transfer message payload: 0-4096 bytes */
304 gb_dev_loopback_rw_attr(size, u);
305 /* Time to wait between two messages: 0-1000 ms */
306 gb_dev_loopback_rw_attr(us_wait, d);
307 /* Maximum iterations for a given operation: 1-(2^32-1), 0 implies infinite */
308 gb_dev_loopback_rw_attr(iteration_max, u);
309 /* The current index of the for (i = 0; i < iteration_max; i++) loop */
310 gb_dev_loopback_ro_attr(iteration_count, false);
311 /* A flag to indicate synchronous or asynchronous operations */
312 gb_dev_loopback_rw_attr(async, u);
313 /* Timeout of an individual asynchronous request */
314 gb_dev_loopback_rw_attr(timeout, u);
315 /* Maximum number of in-flight operations before back-off */
316 gb_dev_loopback_rw_attr(outstanding_operations_max, u);
317
318 static struct attribute *loopback_attrs[] = {
> 319 &dev_attr_latency_min.attr,
> 320 &dev_attr_latency_max.attr,
> 321 &dev_attr_latency_avg.attr,
> 322 &dev_attr_requests_per_second_min.attr,
> 323 &dev_attr_requests_per_second_max.attr,
> 324 &dev_attr_requests_per_second_avg.attr,
> 325 &dev_attr_throughput_min.attr,
> 326 &dev_attr_throughput_max.attr,
> 327 &dev_attr_throughput_avg.attr,
> 328 &dev_attr_apbridge_unipro_latency_min.attr,
> 329 &dev_attr_apbridge_unipro_latency_max.attr,
> 330 &dev_attr_apbridge_unipro_latency_avg.attr,
> 331 &dev_attr_gbphy_firmware_latency_min.attr,
> 332 &dev_attr_gbphy_firmware_latency_max.attr,
> 333 &dev_attr_gbphy_firmware_latency_avg.attr,
334 &dev_attr_type.attr,
335 &dev_attr_size.attr,
336 &dev_attr_us_wait.attr,
337 &dev_attr_iteration_count.attr,
338 &dev_attr_iteration_max.attr,
339 &dev_attr_async.attr,
340 &dev_attr_error.attr,
341 &dev_attr_requests_completed.attr,
342 &dev_attr_requests_timedout.attr,
343 &dev_attr_timeout.attr,
344 &dev_attr_outstanding_operations_max.attr,
345 &dev_attr_timeout_min.attr,
346 &dev_attr_timeout_max.attr,
347 NULL,
348 };
349 ATTRIBUTE_GROUPS(loopback);
350

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Next message: Willy Tarreau: "Re: [PATCH v2 2/3] tools/nolibc: implement fd-based FILE streams"
Previous message: Nikita Bondarenko: "[PATCH v2] dt-bindings: watchdog: brcm,kona-wdt: convert txt file to yaml"
In reply to: Ángel Alberto Carretero: "Re: [PATCH] staging: greybus: loopback: fix up checkpath macro do while error."
Next in thread: kernel test robot: "Re: [PATCH] staging: greybus: loopback: fix up checkpath macro do while error."
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