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* [PATCH] drm/amdkfd/kfd_mqd_manager_v10: Avoid fall-through warning
@ 2019-07-22 17:47 Gustavo A. R. Silva
  2019-07-22 18:14 ` Liu, Shaoyun
  0 siblings, 1 reply; 3+ messages in thread
From: Gustavo A. R. Silva @ 2019-07-22 17:47 UTC (permalink / raw)
  To: Cox, Philip, Liu, Shaoyun, Oded Gabbay, Alex Deucher,
	Christian König, David (ChunMing) Zhou, David Airlie,
	Daniel Vetter
  Cc: dri-devel, amd-gfx, linux-kernel, Gustavo A. R. Silva

In preparation to enabling -Wimplicit-fallthrough, this patch silences
the following warning:

drivers/gpu/drm/amd/amdgpu/../amdkfd/kfd_mqd_manager_v10.c: In function ‘mqd_manager_init_v10’:
./include/linux/dynamic_debug.h:122:52: warning: this statement may fall through [-Wimplicit-fallthrough=]
 #define __dynamic_func_call(id, fmt, func, ...) do { \
                                                    ^
./include/linux/dynamic_debug.h:143:2: note: in expansion of macro ‘__dynamic_func_call’
  __dynamic_func_call(__UNIQUE_ID(ddebug), fmt, func, ##__VA_ARGS__)
  ^~~~~~~~~~~~~~~~~~~
./include/linux/dynamic_debug.h:153:2: note: in expansion of macro ‘_dynamic_func_call’
  _dynamic_func_call(fmt, __dynamic_pr_debug,  \
  ^~~~~~~~~~~~~~~~~~
./include/linux/printk.h:336:2: note: in expansion of macro ‘dynamic_pr_debug’
  dynamic_pr_debug(fmt, ##__VA_ARGS__)
  ^~~~~~~~~~~~~~~~
drivers/gpu/drm/amd/amdgpu/../amdkfd/kfd_mqd_manager_v10.c:432:3: note: in expansion of macro ‘pr_debug’
   pr_debug("%s@%i\n", __func__, __LINE__);
   ^~~~~~~~
drivers/gpu/drm/amd/amdgpu/../amdkfd/kfd_mqd_manager_v10.c:433:2: note: here
  case KFD_MQD_TYPE_COMPUTE:
  ^~~~

by removing the call to pr_debug() in KFD_MQD_TYPE_CP:

"The mqd init for CP and COMPUTE will have the same  routine." [1]

This bug was found thanks to the ongoing efforts to enable
-Wimplicit-fallthrough.

[1] https://lore.kernel.org/lkml/c735a1cc-a545-50fb-44e7-c0ad93ee8ee7@amd.com/

Signed-off-by: Gustavo A. R. Silva <gustavo@embeddedor.com>
---
 drivers/gpu/drm/amd/amdkfd/kfd_mqd_manager_v10.c | 1 -
 1 file changed, 1 deletion(-)

diff --git a/drivers/gpu/drm/amd/amdkfd/kfd_mqd_manager_v10.c b/drivers/gpu/drm/amd/amdkfd/kfd_mqd_manager_v10.c
index 4f8a6ffc5775..9cd3eb2d90bd 100644
--- a/drivers/gpu/drm/amd/amdkfd/kfd_mqd_manager_v10.c
+++ b/drivers/gpu/drm/amd/amdkfd/kfd_mqd_manager_v10.c
@@ -429,7 +429,6 @@ struct mqd_manager *mqd_manager_init_v10(enum KFD_MQD_TYPE type,
 
 	switch (type) {
 	case KFD_MQD_TYPE_CP:
-		pr_debug("%s@%i\n", __func__, __LINE__);
 	case KFD_MQD_TYPE_COMPUTE:
 		pr_debug("%s@%i\n", __func__, __LINE__);
 		mqd->allocate_mqd = allocate_mqd;
-- 
2.22.0


^ permalink raw reply related	[flat|nested] 3+ messages in thread

end of thread, other threads:[~2019-07-22 19:13 UTC | newest]

Thread overview: 3+ messages (download: mbox.gz follow: Atom feed
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2019-07-22 17:47 [PATCH] drm/amdkfd/kfd_mqd_manager_v10: Avoid fall-through warning Gustavo A. R. Silva
2019-07-22 18:14 ` Liu, Shaoyun
2019-07-22 19:13   ` Alex Deucher

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