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* [PATCH] apparmor: don't try to replace stale label in ptraceme check
@ 2018-09-29  1:49 Jann Horn
  2018-09-29  4:38 ` John Johansen
                   ` (2 more replies)
  0 siblings, 3 replies; 5+ messages in thread
From: Jann Horn @ 2018-09-29  1:49 UTC (permalink / raw)
  To: John Johansen, apparmor, jannh
  Cc: linux-kernel, Cyrill Gorcunov, kernel test robot

begin_current_label_crit_section() must run in sleepable context because
when label_is_stale() is true, aa_replace_current_label() runs, which uses
prepare_creds(), which can sleep.

Until now, the ptraceme access check (which runs with tasklist_lock held)
violated this rule.

Fixes: b2d09ae449ced ("apparmor: move ptrace checks to using labels")
Reported-by: Cyrill Gorcunov <gorcunov@gmail.com>
Reported-by: kernel test robot <rong.a.chen@intel.com>
Signed-off-by: Jann Horn <jannh@google.com>
---
 security/apparmor/lsm.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/security/apparmor/lsm.c b/security/apparmor/lsm.c
index 8c7f46a6a8dc..0f56431b4b2f 100644
--- a/security/apparmor/lsm.c
+++ b/security/apparmor/lsm.c
@@ -131,11 +131,11 @@ static int apparmor_ptrace_traceme(struct task_struct *parent)
 	struct aa_label *tracer, *tracee;
 	int error;
 
-	tracee = begin_current_label_crit_section();
+	tracee = __begin_current_label_crit_section();
 	tracer = aa_get_task_label(parent);
 	error = aa_may_ptrace(tracer, tracee, AA_PTRACE_TRACE);
 	aa_put_label(tracer);
-	end_current_label_crit_section(tracee);
+	__end_current_label_crit_section(tracee);
 
 	return error;
 }
-- 
2.19.0.605.g01d371f741-goog


^ permalink raw reply related	[flat|nested] 5+ messages in thread

* Re: [PATCH] apparmor: don't try to replace stale label in ptraceme check
  2018-09-29  1:49 [PATCH] apparmor: don't try to replace stale label in ptraceme check Jann Horn
@ 2018-09-29  4:38 ` John Johansen
  2018-09-29 23:23 ` kbuild test robot
  2018-09-30  4:34 ` kbuild test robot
  2 siblings, 0 replies; 5+ messages in thread
From: John Johansen @ 2018-09-29  4:38 UTC (permalink / raw)
  To: Jann Horn, apparmor; +Cc: linux-kernel, Cyrill Gorcunov, kernel test robot

On 09/28/2018 06:49 PM, Jann Horn wrote:
> begin_current_label_crit_section() must run in sleepable context because
> when label_is_stale() is true, aa_replace_current_label() runs, which uses
> prepare_creds(), which can sleep.
> 
> Until now, the ptraceme access check (which runs with tasklist_lock held)
> violated this rule.
> 
yep, thanks

I've pulled this into my tree and will send it up with another fix

Acked-by: John Johansen <john.johansen@canonical.com>

> Fixes: b2d09ae449ced ("apparmor: move ptrace checks to using labels")
> Reported-by: Cyrill Gorcunov <gorcunov@gmail.com>
> Reported-by: kernel test robot <rong.a.chen@intel.com>
> Signed-off-by: Jann Horn <jannh@google.com>
> ---
>  security/apparmor/lsm.c | 4 ++--
>  1 file changed, 2 insertions(+), 2 deletions(-)
> 
> diff --git a/security/apparmor/lsm.c b/security/apparmor/lsm.c
> index 8c7f46a6a8dc..0f56431b4b2f 100644
> --- a/security/apparmor/lsm.c
> +++ b/security/apparmor/lsm.c
> @@ -131,11 +131,11 @@ static int apparmor_ptrace_traceme(struct task_struct *parent)
>  	struct aa_label *tracer, *tracee;
>  	int error;
>  
> -	tracee = begin_current_label_crit_section();
> +	tracee = __begin_current_label_crit_section();
>  	tracer = aa_get_task_label(parent);
>  	error = aa_may_ptrace(tracer, tracee, AA_PTRACE_TRACE);
>  	aa_put_label(tracer);
> -	end_current_label_crit_section(tracee);
> +	__end_current_label_crit_section(tracee);
>  
>  	return error;
>  }
> 


^ permalink raw reply	[flat|nested] 5+ messages in thread

* Re: [PATCH] apparmor: don't try to replace stale label in ptraceme check
  2018-09-29  1:49 [PATCH] apparmor: don't try to replace stale label in ptraceme check Jann Horn
  2018-09-29  4:38 ` John Johansen
@ 2018-09-29 23:23 ` kbuild test robot
  2018-09-29 23:38   ` Jann Horn
  2018-09-30  4:34 ` kbuild test robot
  2 siblings, 1 reply; 5+ messages in thread
From: kbuild test robot @ 2018-09-29 23:23 UTC (permalink / raw)
  To: Jann Horn
  Cc: kbuild-all, John Johansen, apparmor, jannh, linux-kernel,
	Cyrill Gorcunov, kernel test robot

[-- Attachment #1: Type: text/plain, Size: 20219 bytes --]

Hi Jann,

Thank you for the patch! Perhaps something to improve:

[auto build test WARNING on security/next]
[also build test WARNING on v4.19-rc5 next-20180928]
[if your patch is applied to the wrong git tree, please drop us a note to help improve the system]

url:    https://github.com/0day-ci/linux/commits/Jann-Horn/apparmor-don-t-try-to-replace-stale-label-in-ptraceme-check/20180929-101346
base:   https://git.kernel.org/pub/scm/linux/kernel/git/jmorris/linux-security.git next
config: x86_64-allmodconfig (attached as .config)
compiler: gcc-7 (Debian 7.3.0-1) 7.3.0
reproduce:
        # save the attached .config to linux build tree
        make ARCH=x86_64 

All warnings (new ones prefixed by >>):

   drivers/net/wireless/marvell/mwifiex/usb.c:885:41: warning: incorrect type in assignment (different base types)
   drivers/net/wireless/marvell/mwifiex/usb.c:885:41:    expected unsigned short [unsigned] [short] [usertype] <noident>
   drivers/net/wireless/marvell/mwifiex/usb.c:885:41:    got restricted __le16 [usertype] <noident>
   drivers/net/wireless/marvell/mwifiex/usb.c:886:45: warning: incorrect type in assignment (different base types)
   drivers/net/wireless/marvell/mwifiex/usb.c:886:45:    expected unsigned short [unsigned] [short] [usertype] <noident>
   drivers/net/wireless/marvell/mwifiex/usb.c:886:45:    got restricted __le16 [usertype] <noident>
   drivers/net/wireless/marvell/mwifiex/usb.c:891:41: warning: incorrect type in assignment (different base types)
   drivers/net/wireless/marvell/mwifiex/usb.c:891:41:    expected unsigned short [unsigned] [short] [usertype] <noident>
   drivers/net/wireless/marvell/mwifiex/usb.c:891:41:    got restricted __le16 [usertype] <noident>
   drivers/net/wireless/marvell/mwifiex/usb.c:892:45: warning: incorrect type in assignment (different base types)
   drivers/net/wireless/marvell/mwifiex/usb.c:892:45:    expected unsigned short [unsigned] [short] [usertype] <noident>
   drivers/net/wireless/marvell/mwifiex/usb.c:892:45:    got restricted __le16 [usertype] <noident>
   drivers/net/wireless/marvell/mwifiex/usb.c:1071:37: warning: incorrect type in assignment (different base types)
   drivers/net/wireless/marvell/mwifiex/usb.c:1071:37:    expected unsigned short [unsigned] [short] [usertype] <noident>
   drivers/net/wireless/marvell/mwifiex/usb.c:1071:37:    got restricted __le16 [usertype] <noident>
   drivers/net/wireless/marvell/mwifiex/usb.c:1073:33: warning: incorrect type in assignment (different base types)
   drivers/net/wireless/marvell/mwifiex/usb.c:1073:33:    expected unsigned short [unsigned] [short] [usertype] <noident>
   drivers/net/wireless/marvell/mwifiex/usb.c:1073:33:    got restricted __le16 [usertype] <noident>
>> drivers/net/wireless/marvell/mwifiex/usb.c:1099:13: warning: context imbalance in 'mwifiex_usb_tx_aggr_tmo' - wrong count at exit
--
>> drivers/staging/android/ion/ion_cma_heap.c:109:5: warning: symbol '__ion_add_cma_heaps' was not declared. Should it be static?
--
>> drivers/md/dm.c:1526:28: warning: incorrect type in argument 2 (different base types)
   drivers/md/dm.c:1526:28:    expected restricted blk_status_t [usertype] error
   drivers/md/dm.c:1526:28:    got int [signed] [assigned] error
   drivers/md/dm.c:931:25: warning: context imbalance in 'dm_dax_get_live_target' - wrong count at exit
   drivers/md/dm.c:971:9: warning: context imbalance in 'dm_dax_direct_access' - unexpected unlock
   drivers/md/dm.c:995:9: warning: context imbalance in 'dm_dax_copy_from_iter' - unexpected unlock
>> drivers/md/dm.c:1015:9: warning: context imbalance in 'dm_dax_flush' - unexpected unlock
--
>> drivers/md/dm-bufio.c:1323:11: warning: incorrect type in assignment (different base types)
   drivers/md/dm-bufio.c:1323:11:    expected restricted blk_status_t [usertype] a
   drivers/md/dm-bufio.c:1323:11:    got int [signed] [assigned] __ret
>> drivers/md/dm-bufio.c:1326:24: warning: incorrect type in return expression (different base types)
   drivers/md/dm-bufio.c:1326:24:    expected int
   drivers/md/dm-bufio.c:1326:24:    got restricted blk_status_t [usertype] a
--
>> drivers/gpu/drm/drm_dp_mst_topology.c:3020:6: warning: symbol 'drm_dp_mst_duplicate_state' was not declared. Should it be static?
>> drivers/gpu/drm/drm_dp_mst_topology.c:3034:6: warning: symbol 'drm_dp_mst_swap_state' was not declared. Should it be static?
>> drivers/gpu/drm/drm_dp_mst_topology.c:3046:6: warning: symbol 'drm_dp_mst_destroy_state' was not declared. Should it be static?
--
>> sound/soc/codecs/hdmi-codec.c:70:33: warning: symbol 'hdmi_codec_stereo_chmaps' was not declared. Should it be static?
>> sound/soc/codecs/hdmi-codec.c:77:33: warning: symbol 'hdmi_codec_8ch_chmaps' was not declared. Should it be static?
>> sound/soc/codecs/hdmi-codec.c:343:6: warning: symbol 'hdmi_codec_eld_chmap' was not declared. Should it be static?
--
>> sound/soc/codecs/zx_aud96p22.c:385:27: warning: symbol 'aud96p22_dt_ids' was not declared. Should it be static?
--
>> drivers/staging/typec/tcpm.c:1019:49: warning: incorrect type in assignment (different base types)
   drivers/staging/typec/tcpm.c:1019:49:    expected unsigned int [unsigned] [usertype] <noident>
   drivers/staging/typec/tcpm.c:1019:49:    got restricted __le32 [usertype] <noident>
--
   drivers/gpu/drm/amd/amdgpu/gfx_v9_0.c:465:36: warning: cast to restricted __le32
   drivers/gpu/drm/amd/amdgpu/gfx_v9_0.c:466:41: warning: cast to restricted __le32
   drivers/gpu/drm/amd/amdgpu/gfx_v9_0.c:478:17: warning: cast to restricted __le32
   drivers/gpu/drm/amd/amdgpu/gfx_v9_0.c:480:17: warning: cast to restricted __le32
   drivers/gpu/drm/amd/amdgpu/gfx_v9_0.c:492:25: warning: cast to restricted __le32
   drivers/gpu/drm/amd/amdgpu/gfx_v9_0.c:492:25: warning: cast to restricted __le32
   drivers/gpu/drm/amd/amdgpu/gfx_v9_0.c:492:25: warning: cast to restricted __le32
   drivers/gpu/drm/amd/amdgpu/gfx_v9_0.c:499:25: warning: cast to restricted __le32
   drivers/gpu/drm/amd/amdgpu/gfx_v9_0.c:499:25: warning: cast to restricted __le32
   drivers/gpu/drm/amd/amdgpu/gfx_v9_0.c:499:25: warning: cast to restricted __le32
   drivers/gpu/drm/amd/amdgpu/gfx_v9_0.c:506:25: warning: cast to restricted __le32
   drivers/gpu/drm/amd/amdgpu/gfx_v9_0.c:506:25: warning: cast to restricted __le32
   drivers/gpu/drm/amd/amdgpu/gfx_v9_0.c:506:25: warning: cast to restricted __le32
   drivers/gpu/drm/amd/amdgpu/gfx_v9_0.c:513:25: warning: cast to restricted __le32
   drivers/gpu/drm/amd/amdgpu/gfx_v9_0.c:513:25: warning: cast to restricted __le32
   drivers/gpu/drm/amd/amdgpu/gfx_v9_0.c:513:25: warning: cast to restricted __le32
   drivers/gpu/drm/amd/amdgpu/gfx_v9_0.c:521:25: warning: cast to restricted __le32
   drivers/gpu/drm/amd/amdgpu/gfx_v9_0.c:521:25: warning: cast to restricted __le32
   drivers/gpu/drm/amd/amdgpu/gfx_v9_0.c:521:25: warning: cast to restricted __le32
   drivers/gpu/drm/amd/amdgpu/gfx_v9_0.c:521:25: warning: cast to restricted __le32
   drivers/gpu/drm/amd/amdgpu/gfx_v9_0.c:521:25: warning: cast to restricted __le32
   drivers/gpu/drm/amd/amdgpu/gfx_v9_0.c:521:25: warning: cast to restricted __le32
   drivers/gpu/drm/amd/amdgpu/gfx_v9_0.c:527:25: warning: cast to restricted __le32
   drivers/gpu/drm/amd/amdgpu/gfx_v9_0.c:527:25: warning: cast to restricted __le32
   drivers/gpu/drm/amd/amdgpu/gfx_v9_0.c:527:25: warning: cast to restricted __le32
   drivers/gpu/drm/amd/amdgpu/gfx_v9_0.c:536:33: warning: cast to restricted __le32
   drivers/gpu/drm/amd/amdgpu/gfx_v9_0.c:536:33: warning: cast to restricted __le32
   drivers/gpu/drm/amd/amdgpu/gfx_v9_0.c:536:33: warning: cast to restricted __le32
   drivers/gpu/drm/amd/amdgpu/gfx_v9_0.c:536:33: warning: cast to restricted __le32
   drivers/gpu/drm/amd/amdgpu/gfx_v9_0.c:536:33: warning: cast to restricted __le32
   drivers/gpu/drm/amd/amdgpu/gfx_v9_0.c:536:33: warning: cast to restricted __le32
   drivers/gpu/drm/amd/amdgpu/gfx_v9_0.c:541:33: warning: cast to restricted __le32
   drivers/gpu/drm/amd/amdgpu/gfx_v9_0.c:541:33: warning: cast to restricted __le32
   drivers/gpu/drm/amd/amdgpu/gfx_v9_0.c:541:33: warning: cast to restricted __le32
   drivers/gpu/drm/amd/amdgpu/gfx_v9_0.c:607:25: warning: incorrect type in assignment (different base types)
   drivers/gpu/drm/amd/amdgpu/gfx_v9_0.c:607:25:    expected unsigned int volatile [unsigned] [usertype] <noident>
   drivers/gpu/drm/amd/amdgpu/gfx_v9_0.c:607:25:    got restricted __le32 [usertype] <noident>
   drivers/gpu/drm/amd/amdgpu/gfx_v9_0.c:608:25: warning: incorrect type in assignment (different base types)
   drivers/gpu/drm/amd/amdgpu/gfx_v9_0.c:608:25:    expected unsigned int volatile [unsigned] [usertype] <noident>
   drivers/gpu/drm/amd/amdgpu/gfx_v9_0.c:608:25:    got restricted __le32 [usertype] <noident>
   drivers/gpu/drm/amd/amdgpu/gfx_v9_0.c:610:25: warning: incorrect type in assignment (different base types)
   drivers/gpu/drm/amd/amdgpu/gfx_v9_0.c:610:25:    expected unsigned int volatile [unsigned] [usertype] <noident>
   drivers/gpu/drm/amd/amdgpu/gfx_v9_0.c:610:25:    got restricted __le32 [usertype] <noident>
   drivers/gpu/drm/amd/amdgpu/gfx_v9_0.c:611:25: warning: incorrect type in assignment (different base types)
   drivers/gpu/drm/amd/amdgpu/gfx_v9_0.c:611:25:    expected unsigned int volatile [unsigned] [usertype] <noident>
   drivers/gpu/drm/amd/amdgpu/gfx_v9_0.c:611:25:    got restricted __le32 [usertype] <noident>
   drivers/gpu/drm/amd/amdgpu/gfx_v9_0.c:612:25: warning: incorrect type in assignment (different base types)
   drivers/gpu/drm/amd/amdgpu/gfx_v9_0.c:612:25:    expected unsigned int volatile [unsigned] [usertype] <noident>
   drivers/gpu/drm/amd/amdgpu/gfx_v9_0.c:612:25:    got restricted __le32 [usertype] <noident>
   drivers/gpu/drm/amd/amdgpu/gfx_v9_0.c:617:49: warning: incorrect type in assignment (different base types)
   drivers/gpu/drm/amd/amdgpu/gfx_v9_0.c:617:49:    expected unsigned int volatile [unsigned] [usertype] <noident>
   drivers/gpu/drm/amd/amdgpu/gfx_v9_0.c:617:49:    got restricted __le32 [usertype] <noident>
   drivers/gpu/drm/amd/amdgpu/gfx_v9_0.c:619:49: warning: incorrect type in assignment (different base types)
   drivers/gpu/drm/amd/amdgpu/gfx_v9_0.c:619:49:    expected unsigned int volatile [unsigned] [usertype] <noident>
   drivers/gpu/drm/amd/amdgpu/gfx_v9_0.c:619:49:    got restricted __le32 [usertype] <noident>
   drivers/gpu/drm/amd/amdgpu/gfx_v9_0.c:622:57: warning: incorrect type in assignment (different base types)
   drivers/gpu/drm/amd/amdgpu/gfx_v9_0.c:622:57:    expected unsigned int volatile [unsigned] [usertype] <noident>
   drivers/gpu/drm/amd/amdgpu/gfx_v9_0.c:622:57:    got restricted __le32 [usertype] <noident>
   drivers/gpu/drm/amd/amdgpu/gfx_v9_0.c:629:25: warning: incorrect type in assignment (different base types)
   drivers/gpu/drm/amd/amdgpu/gfx_v9_0.c:629:25:    expected unsigned int volatile [unsigned] [usertype] <noident>
   drivers/gpu/drm/amd/amdgpu/gfx_v9_0.c:629:25:    got restricted __le32 [usertype] <noident>
   drivers/gpu/drm/amd/amdgpu/gfx_v9_0.c:630:25: warning: incorrect type in assignment (different base types)
   drivers/gpu/drm/amd/amdgpu/gfx_v9_0.c:630:25:    expected unsigned int volatile [unsigned] [usertype] <noident>
   drivers/gpu/drm/amd/amdgpu/gfx_v9_0.c:630:25:    got restricted __le32 [usertype] <noident>
   drivers/gpu/drm/amd/amdgpu/gfx_v9_0.c:632:25: warning: incorrect type in assignment (different base types)
   drivers/gpu/drm/amd/amdgpu/gfx_v9_0.c:632:25:    expected unsigned int volatile [unsigned] [usertype] <noident>
   drivers/gpu/drm/amd/amdgpu/gfx_v9_0.c:632:25:    got restricted __le32 [usertype] <noident>
   drivers/gpu/drm/amd/amdgpu/gfx_v9_0.c:633:25: warning: incorrect type in assignment (different base types)
   drivers/gpu/drm/amd/amdgpu/gfx_v9_0.c:633:25:    expected unsigned int volatile [unsigned] [usertype] <noident>
   drivers/gpu/drm/amd/amdgpu/gfx_v9_0.c:633:25:    got restricted __le32 [usertype] <noident>
   drivers/gpu/drm/amd/amdgpu/gfx_v9_0.c:702:34: warning: cast to restricted __le32
   drivers/gpu/drm/amd/amdgpu/gfx_v9_0.c:703:40: warning: cast to restricted __le32
   drivers/gpu/drm/amd/amdgpu/gfx_v9_0.c:704:38: warning: cast to restricted __le32
   drivers/gpu/drm/amd/amdgpu/gfx_v9_0.c:710:34: warning: cast to restricted __le32
   drivers/gpu/drm/amd/amdgpu/gfx_v9_0.c:711:40: warning: cast to restricted __le32
   drivers/gpu/drm/amd/amdgpu/gfx_v9_0.c:712:38: warning: cast to restricted __le32
   drivers/gpu/drm/amd/amdgpu/gfx_v9_0.c:718:34: warning: cast to restricted __le32
   drivers/gpu/drm/amd/amdgpu/gfx_v9_0.c:719:40: warning: cast to restricted __le32
   drivers/gpu/drm/amd/amdgpu/gfx_v9_0.c:720:38: warning: cast to restricted __le32
   drivers/gpu/drm/amd/amdgpu/gfx_v9_0.c:726:34: warning: cast to restricted __le32
   drivers/gpu/drm/amd/amdgpu/gfx_v9_0.c:727:40: warning: cast to restricted __le32
   drivers/gpu/drm/amd/amdgpu/gfx_v9_0.c:728:38: warning: cast to restricted __le32
   drivers/gpu/drm/amd/amdgpu/gfx_v9_0.c:734:34: warning: cast to restricted __le32
   drivers/gpu/drm/amd/amdgpu/gfx_v9_0.c:735:40: warning: cast to restricted __le32
   drivers/gpu/drm/amd/amdgpu/gfx_v9_0.c:736:38: warning: cast to restricted __le32
   drivers/gpu/drm/amd/amdgpu/gfx_v9_0.c:740:48: warning: incorrect type in assignment (different base types)
   drivers/gpu/drm/amd/amdgpu/gfx_v9_0.c:740:48:    expected unsigned int volatile [unsigned] [usertype] <noident>
   drivers/gpu/drm/amd/amdgpu/gfx_v9_0.c:740:48:    got restricted __le32 [usertype] <noident>
   drivers/gpu/drm/amd/amdgpu/gfx_v9_0.c:905:18: warning: cast to restricted __le32
   drivers/gpu/drm/amd/amdgpu/gfx_v9_0.c:906:19: warning: cast to restricted __le32
   drivers/gpu/drm/amd/amdgpu/gfx_v9_0.c:2028:6: warning: symbol 'gfx_v9_0_rlc_stop' was not declared. Should it be static?
   drivers/gpu/drm/amd/amdgpu/gfx_v9_0.c:2092:28: warning: cast to restricted __le32
   drivers/gpu/drm/amd/amdgpu/gfx_v9_0.c:2093:19: warning: cast to restricted __le32
   drivers/gpu/drm/amd/amdgpu/gfx_v9_0.c:2185:18: warning: cast to restricted __le32
   drivers/gpu/drm/amd/amdgpu/gfx_v9_0.c:2186:19: warning: cast to restricted __le32
   drivers/gpu/drm/amd/amdgpu/gfx_v9_0.c:2195:18: warning: cast to restricted __le32
   drivers/gpu/drm/amd/amdgpu/gfx_v9_0.c:2196:19: warning: cast to restricted __le32
   drivers/gpu/drm/amd/amdgpu/gfx_v9_0.c:2205:18: warning: cast to restricted __le32
   drivers/gpu/drm/amd/amdgpu/gfx_v9_0.c:2206:19: warning: cast to restricted __le32
   drivers/gpu/drm/amd/amdgpu/gfx_v9_0.c:2374:18: warning: cast to restricted __le32
>> drivers/gpu/drm/amd/amdgpu/gfx_v9_0.c:4159:27: warning: symbol 'gfx_v9_0_ip_funcs' was not declared. Should it be static?
   drivers/gpu/drm/amd/amdgpu/gfx_v9_0.c:4445:38: warning: symbol 'gfx_v9_0_ip_block' was not declared. Should it be static?
--
   drivers/gpu/drm/amd/amdgpu/sdma_v4_0.c:199:53: warning: cast to restricted __le32
   drivers/gpu/drm/amd/amdgpu/sdma_v4_0.c:200:58: warning: cast to restricted __le32
   drivers/gpu/drm/amd/amdgpu/sdma_v4_0.c:212:33: warning: cast to restricted __le32
   drivers/gpu/drm/amd/amdgpu/sdma_v4_0.c:212:33: warning: cast to restricted __le32
   drivers/gpu/drm/amd/amdgpu/sdma_v4_0.c:212:33: warning: cast to restricted __le32
   drivers/gpu/drm/amd/amdgpu/sdma_v4_0.c:768:27: warning: cast to restricted __le32
>> drivers/gpu/drm/amd/amdgpu/sdma_v4_0.c:770:33: warning: cast to restricted __le16
   drivers/gpu/drm/amd/amdgpu/sdma_v4_0.c:771:33: warning: cast to restricted __le16
   drivers/gpu/drm/amd/amdgpu/sdma_v4_0.c:775:39: warning: cast to restricted __le32
   drivers/gpu/drm/amd/amdgpu/sdma_v4_0.c:782:33: warning: cast to restricted __le32
   drivers/gpu/drm/amd/amdgpu/sdma_v4_0.c:863:28: warning: incorrect type in assignment (different base types)
   drivers/gpu/drm/amd/amdgpu/sdma_v4_0.c:863:28:    expected unsigned int volatile [unsigned] [usertype] <noident>
   drivers/gpu/drm/amd/amdgpu/sdma_v4_0.c:863:28:    got restricted __le32 [usertype] <noident>
   drivers/gpu/drm/amd/amdgpu/sdma_v4_0.c:881:23: warning: cast to restricted __le32
   drivers/gpu/drm/amd/amdgpu/sdma_v4_0.c:925:28: warning: incorrect type in assignment (different base types)
   drivers/gpu/drm/amd/amdgpu/sdma_v4_0.c:925:28:    expected unsigned int volatile [unsigned] [usertype] <noident>
   drivers/gpu/drm/amd/amdgpu/sdma_v4_0.c:925:28:    got restricted __le32 [usertype] <noident>
   drivers/gpu/drm/amd/amdgpu/sdma_v4_0.c:957:15: warning: cast to restricted __le32
   drivers/gpu/drm/amd/amdgpu/sdma_v4_0.c:1545:27: warning: symbol 'sdma_v4_0_ip_funcs' was not declared. Should it be static?
   drivers/gpu/drm/amd/amdgpu/sdma_v4_0.c:1702:38: warning: symbol 'sdma_v4_0_ip_block' was not declared. Should it be static?
--
>> drivers/gpu/drm/amd/amdgpu/mmhub_v1_0.c:252:24: warning: symbol 'pctl0_data' was not declared. Should it be static?
>> drivers/gpu/drm/amd/amdgpu/mmhub_v1_0.c:277:24: warning: symbol 'pctl1_data' was not declared. Should it be static?
..

vim +/mwifiex_usb_tx_aggr_tmo +1099 drivers/net/wireless/marvell/mwifiex/usb.c

c5994293 Xinming Hu 2017-05-23  1098  
a2ca85ad Xinming Hu 2017-05-23 @1099  static void mwifiex_usb_tx_aggr_tmo(unsigned long context)
a2ca85ad Xinming Hu 2017-05-23  1100  {
a2ca85ad Xinming Hu 2017-05-23  1101  	struct urb_context *urb_cnxt = NULL;
a2ca85ad Xinming Hu 2017-05-23  1102  	struct sk_buff *skb_send = NULL;
a2ca85ad Xinming Hu 2017-05-23  1103  	struct tx_aggr_tmr_cnxt *timer_context =
a2ca85ad Xinming Hu 2017-05-23  1104  		(struct tx_aggr_tmr_cnxt *)context;
a2ca85ad Xinming Hu 2017-05-23  1105  	struct mwifiex_adapter *adapter = timer_context->adapter;
a2ca85ad Xinming Hu 2017-05-23  1106  	struct usb_tx_data_port *port = timer_context->port;
a2ca85ad Xinming Hu 2017-05-23  1107  	unsigned long flags;
a2ca85ad Xinming Hu 2017-05-23  1108  	int err = 0;
a2ca85ad Xinming Hu 2017-05-23  1109  
a2ca85ad Xinming Hu 2017-05-23  1110  	spin_lock_irqsave(&port->tx_aggr_lock, flags);
a2ca85ad Xinming Hu 2017-05-23  1111  	err = mwifiex_usb_prepare_tx_aggr_skb(adapter, port, &skb_send);
a2ca85ad Xinming Hu 2017-05-23  1112  	if (err) {
a2ca85ad Xinming Hu 2017-05-23  1113  		mwifiex_dbg(adapter, ERROR,
a2ca85ad Xinming Hu 2017-05-23  1114  			    "prepare tx aggr skb failed, err=%d\n", err);
a2ca85ad Xinming Hu 2017-05-23  1115  		return;
a2ca85ad Xinming Hu 2017-05-23  1116  	}
a2ca85ad Xinming Hu 2017-05-23  1117  
a2ca85ad Xinming Hu 2017-05-23  1118  	if (atomic_read(&port->tx_data_urb_pending) >=
a2ca85ad Xinming Hu 2017-05-23  1119  	    MWIFIEX_TX_DATA_URB) {
a2ca85ad Xinming Hu 2017-05-23  1120  		port->block_status = true;
a2ca85ad Xinming Hu 2017-05-23  1121  		adapter->data_sent =
a2ca85ad Xinming Hu 2017-05-23  1122  			mwifiex_usb_data_sent(adapter);
a2ca85ad Xinming Hu 2017-05-23  1123  		err = -1;
a2ca85ad Xinming Hu 2017-05-23  1124  		goto done;
a2ca85ad Xinming Hu 2017-05-23  1125  	}
a2ca85ad Xinming Hu 2017-05-23  1126  
a2ca85ad Xinming Hu 2017-05-23  1127  	if (port->tx_data_ix >= MWIFIEX_TX_DATA_URB)
a2ca85ad Xinming Hu 2017-05-23  1128  		port->tx_data_ix = 0;
a2ca85ad Xinming Hu 2017-05-23  1129  
a2ca85ad Xinming Hu 2017-05-23  1130  	urb_cnxt = &port->tx_data_list[port->tx_data_ix++];
a2ca85ad Xinming Hu 2017-05-23  1131  	err = mwifiex_usb_construct_send_urb(adapter, port, port->tx_data_ep,
a2ca85ad Xinming Hu 2017-05-23  1132  					     urb_cnxt, skb_send);
a2ca85ad Xinming Hu 2017-05-23  1133  done:
a2ca85ad Xinming Hu 2017-05-23  1134  	if (err == -1)
a2ca85ad Xinming Hu 2017-05-23  1135  		mwifiex_write_data_complete(adapter, skb_send, 0, -1);
a2ca85ad Xinming Hu 2017-05-23  1136  	spin_unlock_irqrestore(&port->tx_aggr_lock, flags);
a2ca85ad Xinming Hu 2017-05-23  1137  }
a2ca85ad Xinming Hu 2017-05-23  1138  

:::::: The code at line 1099 was first introduced by commit
:::::: a2ca85ad721de50b90d50f3a11b67c4776a1236d mwifiex: usb: add timer to flush aggregation packets

:::::: TO: Xinming Hu <huxm@marvell.com>
:::::: CC: Kalle Valo <kvalo@codeaurora.org>

---
0-DAY kernel test infrastructure                Open Source Technology Center
https://lists.01.org/pipermail/kbuild-all                   Intel Corporation

[-- Attachment #2: .config.gz --]
[-- Type: application/gzip, Size: 61000 bytes --]

^ permalink raw reply	[flat|nested] 5+ messages in thread

* Re: [PATCH] apparmor: don't try to replace stale label in ptraceme check
  2018-09-29 23:23 ` kbuild test robot
@ 2018-09-29 23:38   ` Jann Horn
  0 siblings, 0 replies; 5+ messages in thread
From: Jann Horn @ 2018-09-29 23:38 UTC (permalink / raw)
  To: lkp
  Cc: kbuild-all, John Johansen, apparmor, kernel list,
	Cyrill Gorcunov, rong.a.chen

On Sun, Sep 30, 2018 at 1:24 AM kbuild test robot <lkp@intel.com> wrote:
>
> Hi Jann,
>
> Thank you for the patch! Perhaps something to improve:
>
> [auto build test WARNING on security/next]
> [also build test WARNING on v4.19-rc5 next-20180928]
> [if your patch is applied to the wrong git tree, please drop us a note to help improve the system]

This looks to me as if something went very wrong in the 0day test bot;
the warnings below don't have anything to do with my patch, as far as
I can tell, and the "TO:" and "CC:" lines at the bottom of this
message are also entirely unrelated.

> url:    https://github.com/0day-ci/linux/commits/Jann-Horn/apparmor-don-t-try-to-replace-stale-label-in-ptraceme-check/20180929-101346
> base:   https://git.kernel.org/pub/scm/linux/kernel/git/jmorris/linux-security.git next
> config: x86_64-allmodconfig (attached as .config)
> compiler: gcc-7 (Debian 7.3.0-1) 7.3.0
> reproduce:
>         # save the attached .config to linux build tree
>         make ARCH=x86_64
>
> All warnings (new ones prefixed by >>):
>
>    drivers/net/wireless/marvell/mwifiex/usb.c:885:41: warning: incorrect type in assignment (different base types)
>    drivers/net/wireless/marvell/mwifiex/usb.c:885:41:    expected unsigned short [unsigned] [short] [usertype] <noident>
>    drivers/net/wireless/marvell/mwifiex/usb.c:885:41:    got restricted __le16 [usertype] <noident>
>    drivers/net/wireless/marvell/mwifiex/usb.c:886:45: warning: incorrect type in assignment (different base types)
>    drivers/net/wireless/marvell/mwifiex/usb.c:886:45:    expected unsigned short [unsigned] [short] [usertype] <noident>
>    drivers/net/wireless/marvell/mwifiex/usb.c:886:45:    got restricted __le16 [usertype] <noident>
>    drivers/net/wireless/marvell/mwifiex/usb.c:891:41: warning: incorrect type in assignment (different base types)
>    drivers/net/wireless/marvell/mwifiex/usb.c:891:41:    expected unsigned short [unsigned] [short] [usertype] <noident>
>    drivers/net/wireless/marvell/mwifiex/usb.c:891:41:    got restricted __le16 [usertype] <noident>
>    drivers/net/wireless/marvell/mwifiex/usb.c:892:45: warning: incorrect type in assignment (different base types)
>    drivers/net/wireless/marvell/mwifiex/usb.c:892:45:    expected unsigned short [unsigned] [short] [usertype] <noident>
>    drivers/net/wireless/marvell/mwifiex/usb.c:892:45:    got restricted __le16 [usertype] <noident>
>    drivers/net/wireless/marvell/mwifiex/usb.c:1071:37: warning: incorrect type in assignment (different base types)
>    drivers/net/wireless/marvell/mwifiex/usb.c:1071:37:    expected unsigned short [unsigned] [short] [usertype] <noident>
>    drivers/net/wireless/marvell/mwifiex/usb.c:1071:37:    got restricted __le16 [usertype] <noident>
>    drivers/net/wireless/marvell/mwifiex/usb.c:1073:33: warning: incorrect type in assignment (different base types)
>    drivers/net/wireless/marvell/mwifiex/usb.c:1073:33:    expected unsigned short [unsigned] [short] [usertype] <noident>
>    drivers/net/wireless/marvell/mwifiex/usb.c:1073:33:    got restricted __le16 [usertype] <noident>
> >> drivers/net/wireless/marvell/mwifiex/usb.c:1099:13: warning: context imbalance in 'mwifiex_usb_tx_aggr_tmo' - wrong count at exit
> --
> >> drivers/staging/android/ion/ion_cma_heap.c:109:5: warning: symbol '__ion_add_cma_heaps' was not declared. Should it be static?
> --
> >> drivers/md/dm.c:1526:28: warning: incorrect type in argument 2 (different base types)
>    drivers/md/dm.c:1526:28:    expected restricted blk_status_t [usertype] error
>    drivers/md/dm.c:1526:28:    got int [signed] [assigned] error
>    drivers/md/dm.c:931:25: warning: context imbalance in 'dm_dax_get_live_target' - wrong count at exit
>    drivers/md/dm.c:971:9: warning: context imbalance in 'dm_dax_direct_access' - unexpected unlock
>    drivers/md/dm.c:995:9: warning: context imbalance in 'dm_dax_copy_from_iter' - unexpected unlock
> >> drivers/md/dm.c:1015:9: warning: context imbalance in 'dm_dax_flush' - unexpected unlock
> --
> >> drivers/md/dm-bufio.c:1323:11: warning: incorrect type in assignment (different base types)
>    drivers/md/dm-bufio.c:1323:11:    expected restricted blk_status_t [usertype] a
>    drivers/md/dm-bufio.c:1323:11:    got int [signed] [assigned] __ret
> >> drivers/md/dm-bufio.c:1326:24: warning: incorrect type in return expression (different base types)
>    drivers/md/dm-bufio.c:1326:24:    expected int
>    drivers/md/dm-bufio.c:1326:24:    got restricted blk_status_t [usertype] a
> --
> >> drivers/gpu/drm/drm_dp_mst_topology.c:3020:6: warning: symbol 'drm_dp_mst_duplicate_state' was not declared. Should it be static?
> >> drivers/gpu/drm/drm_dp_mst_topology.c:3034:6: warning: symbol 'drm_dp_mst_swap_state' was not declared. Should it be static?
> >> drivers/gpu/drm/drm_dp_mst_topology.c:3046:6: warning: symbol 'drm_dp_mst_destroy_state' was not declared. Should it be static?
> --
> >> sound/soc/codecs/hdmi-codec.c:70:33: warning: symbol 'hdmi_codec_stereo_chmaps' was not declared. Should it be static?
> >> sound/soc/codecs/hdmi-codec.c:77:33: warning: symbol 'hdmi_codec_8ch_chmaps' was not declared. Should it be static?
> >> sound/soc/codecs/hdmi-codec.c:343:6: warning: symbol 'hdmi_codec_eld_chmap' was not declared. Should it be static?
> --
> >> sound/soc/codecs/zx_aud96p22.c:385:27: warning: symbol 'aud96p22_dt_ids' was not declared. Should it be static?
> --
> >> drivers/staging/typec/tcpm.c:1019:49: warning: incorrect type in assignment (different base types)
>    drivers/staging/typec/tcpm.c:1019:49:    expected unsigned int [unsigned] [usertype] <noident>
>    drivers/staging/typec/tcpm.c:1019:49:    got restricted __le32 [usertype] <noident>
> --
>    drivers/gpu/drm/amd/amdgpu/gfx_v9_0.c:465:36: warning: cast to restricted __le32
>    drivers/gpu/drm/amd/amdgpu/gfx_v9_0.c:466:41: warning: cast to restricted __le32
>    drivers/gpu/drm/amd/amdgpu/gfx_v9_0.c:478:17: warning: cast to restricted __le32
>    drivers/gpu/drm/amd/amdgpu/gfx_v9_0.c:480:17: warning: cast to restricted __le32
>    drivers/gpu/drm/amd/amdgpu/gfx_v9_0.c:492:25: warning: cast to restricted __le32
>    drivers/gpu/drm/amd/amdgpu/gfx_v9_0.c:492:25: warning: cast to restricted __le32
>    drivers/gpu/drm/amd/amdgpu/gfx_v9_0.c:492:25: warning: cast to restricted __le32
>    drivers/gpu/drm/amd/amdgpu/gfx_v9_0.c:499:25: warning: cast to restricted __le32
>    drivers/gpu/drm/amd/amdgpu/gfx_v9_0.c:499:25: warning: cast to restricted __le32
>    drivers/gpu/drm/amd/amdgpu/gfx_v9_0.c:499:25: warning: cast to restricted __le32
>    drivers/gpu/drm/amd/amdgpu/gfx_v9_0.c:506:25: warning: cast to restricted __le32
>    drivers/gpu/drm/amd/amdgpu/gfx_v9_0.c:506:25: warning: cast to restricted __le32
>    drivers/gpu/drm/amd/amdgpu/gfx_v9_0.c:506:25: warning: cast to restricted __le32
>    drivers/gpu/drm/amd/amdgpu/gfx_v9_0.c:513:25: warning: cast to restricted __le32
>    drivers/gpu/drm/amd/amdgpu/gfx_v9_0.c:513:25: warning: cast to restricted __le32
>    drivers/gpu/drm/amd/amdgpu/gfx_v9_0.c:513:25: warning: cast to restricted __le32
>    drivers/gpu/drm/amd/amdgpu/gfx_v9_0.c:521:25: warning: cast to restricted __le32
>    drivers/gpu/drm/amd/amdgpu/gfx_v9_0.c:521:25: warning: cast to restricted __le32
>    drivers/gpu/drm/amd/amdgpu/gfx_v9_0.c:521:25: warning: cast to restricted __le32
>    drivers/gpu/drm/amd/amdgpu/gfx_v9_0.c:521:25: warning: cast to restricted __le32
>    drivers/gpu/drm/amd/amdgpu/gfx_v9_0.c:521:25: warning: cast to restricted __le32
>    drivers/gpu/drm/amd/amdgpu/gfx_v9_0.c:521:25: warning: cast to restricted __le32
>    drivers/gpu/drm/amd/amdgpu/gfx_v9_0.c:527:25: warning: cast to restricted __le32
>    drivers/gpu/drm/amd/amdgpu/gfx_v9_0.c:527:25: warning: cast to restricted __le32
>    drivers/gpu/drm/amd/amdgpu/gfx_v9_0.c:527:25: warning: cast to restricted __le32
>    drivers/gpu/drm/amd/amdgpu/gfx_v9_0.c:536:33: warning: cast to restricted __le32
>    drivers/gpu/drm/amd/amdgpu/gfx_v9_0.c:536:33: warning: cast to restricted __le32
>    drivers/gpu/drm/amd/amdgpu/gfx_v9_0.c:536:33: warning: cast to restricted __le32
>    drivers/gpu/drm/amd/amdgpu/gfx_v9_0.c:536:33: warning: cast to restricted __le32
>    drivers/gpu/drm/amd/amdgpu/gfx_v9_0.c:536:33: warning: cast to restricted __le32
>    drivers/gpu/drm/amd/amdgpu/gfx_v9_0.c:536:33: warning: cast to restricted __le32
>    drivers/gpu/drm/amd/amdgpu/gfx_v9_0.c:541:33: warning: cast to restricted __le32
>    drivers/gpu/drm/amd/amdgpu/gfx_v9_0.c:541:33: warning: cast to restricted __le32
>    drivers/gpu/drm/amd/amdgpu/gfx_v9_0.c:541:33: warning: cast to restricted __le32
>    drivers/gpu/drm/amd/amdgpu/gfx_v9_0.c:607:25: warning: incorrect type in assignment (different base types)
>    drivers/gpu/drm/amd/amdgpu/gfx_v9_0.c:607:25:    expected unsigned int volatile [unsigned] [usertype] <noident>
>    drivers/gpu/drm/amd/amdgpu/gfx_v9_0.c:607:25:    got restricted __le32 [usertype] <noident>
>    drivers/gpu/drm/amd/amdgpu/gfx_v9_0.c:608:25: warning: incorrect type in assignment (different base types)
>    drivers/gpu/drm/amd/amdgpu/gfx_v9_0.c:608:25:    expected unsigned int volatile [unsigned] [usertype] <noident>
>    drivers/gpu/drm/amd/amdgpu/gfx_v9_0.c:608:25:    got restricted __le32 [usertype] <noident>
>    drivers/gpu/drm/amd/amdgpu/gfx_v9_0.c:610:25: warning: incorrect type in assignment (different base types)
>    drivers/gpu/drm/amd/amdgpu/gfx_v9_0.c:610:25:    expected unsigned int volatile [unsigned] [usertype] <noident>
>    drivers/gpu/drm/amd/amdgpu/gfx_v9_0.c:610:25:    got restricted __le32 [usertype] <noident>
>    drivers/gpu/drm/amd/amdgpu/gfx_v9_0.c:611:25: warning: incorrect type in assignment (different base types)
>    drivers/gpu/drm/amd/amdgpu/gfx_v9_0.c:611:25:    expected unsigned int volatile [unsigned] [usertype] <noident>
>    drivers/gpu/drm/amd/amdgpu/gfx_v9_0.c:611:25:    got restricted __le32 [usertype] <noident>
>    drivers/gpu/drm/amd/amdgpu/gfx_v9_0.c:612:25: warning: incorrect type in assignment (different base types)
>    drivers/gpu/drm/amd/amdgpu/gfx_v9_0.c:612:25:    expected unsigned int volatile [unsigned] [usertype] <noident>
>    drivers/gpu/drm/amd/amdgpu/gfx_v9_0.c:612:25:    got restricted __le32 [usertype] <noident>
>    drivers/gpu/drm/amd/amdgpu/gfx_v9_0.c:617:49: warning: incorrect type in assignment (different base types)
>    drivers/gpu/drm/amd/amdgpu/gfx_v9_0.c:617:49:    expected unsigned int volatile [unsigned] [usertype] <noident>
>    drivers/gpu/drm/amd/amdgpu/gfx_v9_0.c:617:49:    got restricted __le32 [usertype] <noident>
>    drivers/gpu/drm/amd/amdgpu/gfx_v9_0.c:619:49: warning: incorrect type in assignment (different base types)
>    drivers/gpu/drm/amd/amdgpu/gfx_v9_0.c:619:49:    expected unsigned int volatile [unsigned] [usertype] <noident>
>    drivers/gpu/drm/amd/amdgpu/gfx_v9_0.c:619:49:    got restricted __le32 [usertype] <noident>
>    drivers/gpu/drm/amd/amdgpu/gfx_v9_0.c:622:57: warning: incorrect type in assignment (different base types)
>    drivers/gpu/drm/amd/amdgpu/gfx_v9_0.c:622:57:    expected unsigned int volatile [unsigned] [usertype] <noident>
>    drivers/gpu/drm/amd/amdgpu/gfx_v9_0.c:622:57:    got restricted __le32 [usertype] <noident>
>    drivers/gpu/drm/amd/amdgpu/gfx_v9_0.c:629:25: warning: incorrect type in assignment (different base types)
>    drivers/gpu/drm/amd/amdgpu/gfx_v9_0.c:629:25:    expected unsigned int volatile [unsigned] [usertype] <noident>
>    drivers/gpu/drm/amd/amdgpu/gfx_v9_0.c:629:25:    got restricted __le32 [usertype] <noident>
>    drivers/gpu/drm/amd/amdgpu/gfx_v9_0.c:630:25: warning: incorrect type in assignment (different base types)
>    drivers/gpu/drm/amd/amdgpu/gfx_v9_0.c:630:25:    expected unsigned int volatile [unsigned] [usertype] <noident>
>    drivers/gpu/drm/amd/amdgpu/gfx_v9_0.c:630:25:    got restricted __le32 [usertype] <noident>
>    drivers/gpu/drm/amd/amdgpu/gfx_v9_0.c:632:25: warning: incorrect type in assignment (different base types)
>    drivers/gpu/drm/amd/amdgpu/gfx_v9_0.c:632:25:    expected unsigned int volatile [unsigned] [usertype] <noident>
>    drivers/gpu/drm/amd/amdgpu/gfx_v9_0.c:632:25:    got restricted __le32 [usertype] <noident>
>    drivers/gpu/drm/amd/amdgpu/gfx_v9_0.c:633:25: warning: incorrect type in assignment (different base types)
>    drivers/gpu/drm/amd/amdgpu/gfx_v9_0.c:633:25:    expected unsigned int volatile [unsigned] [usertype] <noident>
>    drivers/gpu/drm/amd/amdgpu/gfx_v9_0.c:633:25:    got restricted __le32 [usertype] <noident>
>    drivers/gpu/drm/amd/amdgpu/gfx_v9_0.c:702:34: warning: cast to restricted __le32
>    drivers/gpu/drm/amd/amdgpu/gfx_v9_0.c:703:40: warning: cast to restricted __le32
>    drivers/gpu/drm/amd/amdgpu/gfx_v9_0.c:704:38: warning: cast to restricted __le32
>    drivers/gpu/drm/amd/amdgpu/gfx_v9_0.c:710:34: warning: cast to restricted __le32
>    drivers/gpu/drm/amd/amdgpu/gfx_v9_0.c:711:40: warning: cast to restricted __le32
>    drivers/gpu/drm/amd/amdgpu/gfx_v9_0.c:712:38: warning: cast to restricted __le32
>    drivers/gpu/drm/amd/amdgpu/gfx_v9_0.c:718:34: warning: cast to restricted __le32
>    drivers/gpu/drm/amd/amdgpu/gfx_v9_0.c:719:40: warning: cast to restricted __le32
>    drivers/gpu/drm/amd/amdgpu/gfx_v9_0.c:720:38: warning: cast to restricted __le32
>    drivers/gpu/drm/amd/amdgpu/gfx_v9_0.c:726:34: warning: cast to restricted __le32
>    drivers/gpu/drm/amd/amdgpu/gfx_v9_0.c:727:40: warning: cast to restricted __le32
>    drivers/gpu/drm/amd/amdgpu/gfx_v9_0.c:728:38: warning: cast to restricted __le32
>    drivers/gpu/drm/amd/amdgpu/gfx_v9_0.c:734:34: warning: cast to restricted __le32
>    drivers/gpu/drm/amd/amdgpu/gfx_v9_0.c:735:40: warning: cast to restricted __le32
>    drivers/gpu/drm/amd/amdgpu/gfx_v9_0.c:736:38: warning: cast to restricted __le32
>    drivers/gpu/drm/amd/amdgpu/gfx_v9_0.c:740:48: warning: incorrect type in assignment (different base types)
>    drivers/gpu/drm/amd/amdgpu/gfx_v9_0.c:740:48:    expected unsigned int volatile [unsigned] [usertype] <noident>
>    drivers/gpu/drm/amd/amdgpu/gfx_v9_0.c:740:48:    got restricted __le32 [usertype] <noident>
>    drivers/gpu/drm/amd/amdgpu/gfx_v9_0.c:905:18: warning: cast to restricted __le32
>    drivers/gpu/drm/amd/amdgpu/gfx_v9_0.c:906:19: warning: cast to restricted __le32
>    drivers/gpu/drm/amd/amdgpu/gfx_v9_0.c:2028:6: warning: symbol 'gfx_v9_0_rlc_stop' was not declared. Should it be static?
>    drivers/gpu/drm/amd/amdgpu/gfx_v9_0.c:2092:28: warning: cast to restricted __le32
>    drivers/gpu/drm/amd/amdgpu/gfx_v9_0.c:2093:19: warning: cast to restricted __le32
>    drivers/gpu/drm/amd/amdgpu/gfx_v9_0.c:2185:18: warning: cast to restricted __le32
>    drivers/gpu/drm/amd/amdgpu/gfx_v9_0.c:2186:19: warning: cast to restricted __le32
>    drivers/gpu/drm/amd/amdgpu/gfx_v9_0.c:2195:18: warning: cast to restricted __le32
>    drivers/gpu/drm/amd/amdgpu/gfx_v9_0.c:2196:19: warning: cast to restricted __le32
>    drivers/gpu/drm/amd/amdgpu/gfx_v9_0.c:2205:18: warning: cast to restricted __le32
>    drivers/gpu/drm/amd/amdgpu/gfx_v9_0.c:2206:19: warning: cast to restricted __le32
>    drivers/gpu/drm/amd/amdgpu/gfx_v9_0.c:2374:18: warning: cast to restricted __le32
> >> drivers/gpu/drm/amd/amdgpu/gfx_v9_0.c:4159:27: warning: symbol 'gfx_v9_0_ip_funcs' was not declared. Should it be static?
>    drivers/gpu/drm/amd/amdgpu/gfx_v9_0.c:4445:38: warning: symbol 'gfx_v9_0_ip_block' was not declared. Should it be static?
> --
>    drivers/gpu/drm/amd/amdgpu/sdma_v4_0.c:199:53: warning: cast to restricted __le32
>    drivers/gpu/drm/amd/amdgpu/sdma_v4_0.c:200:58: warning: cast to restricted __le32
>    drivers/gpu/drm/amd/amdgpu/sdma_v4_0.c:212:33: warning: cast to restricted __le32
>    drivers/gpu/drm/amd/amdgpu/sdma_v4_0.c:212:33: warning: cast to restricted __le32
>    drivers/gpu/drm/amd/amdgpu/sdma_v4_0.c:212:33: warning: cast to restricted __le32
>    drivers/gpu/drm/amd/amdgpu/sdma_v4_0.c:768:27: warning: cast to restricted __le32
> >> drivers/gpu/drm/amd/amdgpu/sdma_v4_0.c:770:33: warning: cast to restricted __le16
>    drivers/gpu/drm/amd/amdgpu/sdma_v4_0.c:771:33: warning: cast to restricted __le16
>    drivers/gpu/drm/amd/amdgpu/sdma_v4_0.c:775:39: warning: cast to restricted __le32
>    drivers/gpu/drm/amd/amdgpu/sdma_v4_0.c:782:33: warning: cast to restricted __le32
>    drivers/gpu/drm/amd/amdgpu/sdma_v4_0.c:863:28: warning: incorrect type in assignment (different base types)
>    drivers/gpu/drm/amd/amdgpu/sdma_v4_0.c:863:28:    expected unsigned int volatile [unsigned] [usertype] <noident>
>    drivers/gpu/drm/amd/amdgpu/sdma_v4_0.c:863:28:    got restricted __le32 [usertype] <noident>
>    drivers/gpu/drm/amd/amdgpu/sdma_v4_0.c:881:23: warning: cast to restricted __le32
>    drivers/gpu/drm/amd/amdgpu/sdma_v4_0.c:925:28: warning: incorrect type in assignment (different base types)
>    drivers/gpu/drm/amd/amdgpu/sdma_v4_0.c:925:28:    expected unsigned int volatile [unsigned] [usertype] <noident>
>    drivers/gpu/drm/amd/amdgpu/sdma_v4_0.c:925:28:    got restricted __le32 [usertype] <noident>
>    drivers/gpu/drm/amd/amdgpu/sdma_v4_0.c:957:15: warning: cast to restricted __le32
>    drivers/gpu/drm/amd/amdgpu/sdma_v4_0.c:1545:27: warning: symbol 'sdma_v4_0_ip_funcs' was not declared. Should it be static?
>    drivers/gpu/drm/amd/amdgpu/sdma_v4_0.c:1702:38: warning: symbol 'sdma_v4_0_ip_block' was not declared. Should it be static?
> --
> >> drivers/gpu/drm/amd/amdgpu/mmhub_v1_0.c:252:24: warning: symbol 'pctl0_data' was not declared. Should it be static?
> >> drivers/gpu/drm/amd/amdgpu/mmhub_v1_0.c:277:24: warning: symbol 'pctl1_data' was not declared. Should it be static?
> ..
>
> vim +/mwifiex_usb_tx_aggr_tmo +1099 drivers/net/wireless/marvell/mwifiex/usb.c
>
> c5994293 Xinming Hu 2017-05-23  1098
> a2ca85ad Xinming Hu 2017-05-23 @1099  static void mwifiex_usb_tx_aggr_tmo(unsigned long context)
> a2ca85ad Xinming Hu 2017-05-23  1100  {
> a2ca85ad Xinming Hu 2017-05-23  1101    struct urb_context *urb_cnxt = NULL;
> a2ca85ad Xinming Hu 2017-05-23  1102    struct sk_buff *skb_send = NULL;
> a2ca85ad Xinming Hu 2017-05-23  1103    struct tx_aggr_tmr_cnxt *timer_context =
> a2ca85ad Xinming Hu 2017-05-23  1104            (struct tx_aggr_tmr_cnxt *)context;
> a2ca85ad Xinming Hu 2017-05-23  1105    struct mwifiex_adapter *adapter = timer_context->adapter;
> a2ca85ad Xinming Hu 2017-05-23  1106    struct usb_tx_data_port *port = timer_context->port;
> a2ca85ad Xinming Hu 2017-05-23  1107    unsigned long flags;
> a2ca85ad Xinming Hu 2017-05-23  1108    int err = 0;
> a2ca85ad Xinming Hu 2017-05-23  1109
> a2ca85ad Xinming Hu 2017-05-23  1110    spin_lock_irqsave(&port->tx_aggr_lock, flags);
> a2ca85ad Xinming Hu 2017-05-23  1111    err = mwifiex_usb_prepare_tx_aggr_skb(adapter, port, &skb_send);
> a2ca85ad Xinming Hu 2017-05-23  1112    if (err) {
> a2ca85ad Xinming Hu 2017-05-23  1113            mwifiex_dbg(adapter, ERROR,
> a2ca85ad Xinming Hu 2017-05-23  1114                        "prepare tx aggr skb failed, err=%d\n", err);
> a2ca85ad Xinming Hu 2017-05-23  1115            return;
> a2ca85ad Xinming Hu 2017-05-23  1116    }
> a2ca85ad Xinming Hu 2017-05-23  1117
> a2ca85ad Xinming Hu 2017-05-23  1118    if (atomic_read(&port->tx_data_urb_pending) >=
> a2ca85ad Xinming Hu 2017-05-23  1119        MWIFIEX_TX_DATA_URB) {
> a2ca85ad Xinming Hu 2017-05-23  1120            port->block_status = true;
> a2ca85ad Xinming Hu 2017-05-23  1121            adapter->data_sent =
> a2ca85ad Xinming Hu 2017-05-23  1122                    mwifiex_usb_data_sent(adapter);
> a2ca85ad Xinming Hu 2017-05-23  1123            err = -1;
> a2ca85ad Xinming Hu 2017-05-23  1124            goto done;
> a2ca85ad Xinming Hu 2017-05-23  1125    }
> a2ca85ad Xinming Hu 2017-05-23  1126
> a2ca85ad Xinming Hu 2017-05-23  1127    if (port->tx_data_ix >= MWIFIEX_TX_DATA_URB)
> a2ca85ad Xinming Hu 2017-05-23  1128            port->tx_data_ix = 0;
> a2ca85ad Xinming Hu 2017-05-23  1129
> a2ca85ad Xinming Hu 2017-05-23  1130    urb_cnxt = &port->tx_data_list[port->tx_data_ix++];
> a2ca85ad Xinming Hu 2017-05-23  1131    err = mwifiex_usb_construct_send_urb(adapter, port, port->tx_data_ep,
> a2ca85ad Xinming Hu 2017-05-23  1132                                         urb_cnxt, skb_send);
> a2ca85ad Xinming Hu 2017-05-23  1133  done:
> a2ca85ad Xinming Hu 2017-05-23  1134    if (err == -1)
> a2ca85ad Xinming Hu 2017-05-23  1135            mwifiex_write_data_complete(adapter, skb_send, 0, -1);
> a2ca85ad Xinming Hu 2017-05-23  1136    spin_unlock_irqrestore(&port->tx_aggr_lock, flags);
> a2ca85ad Xinming Hu 2017-05-23  1137  }
> a2ca85ad Xinming Hu 2017-05-23  1138
>
> :::::: The code at line 1099 was first introduced by commit
> :::::: a2ca85ad721de50b90d50f3a11b67c4776a1236d mwifiex: usb: add timer to flush aggregation packets
>
> :::::: TO: Xinming Hu <huxm@marvell.com>
> :::::: CC: Kalle Valo <kvalo@codeaurora.org>
>
> ---
> 0-DAY kernel test infrastructure                Open Source Technology Center
> https://lists.01.org/pipermail/kbuild-all                   Intel Corporation

^ permalink raw reply	[flat|nested] 5+ messages in thread

* Re: [PATCH] apparmor: don't try to replace stale label in ptraceme check
  2018-09-29  1:49 [PATCH] apparmor: don't try to replace stale label in ptraceme check Jann Horn
  2018-09-29  4:38 ` John Johansen
  2018-09-29 23:23 ` kbuild test robot
@ 2018-09-30  4:34 ` kbuild test robot
  2 siblings, 0 replies; 5+ messages in thread
From: kbuild test robot @ 2018-09-30  4:34 UTC (permalink / raw)
  To: Jann Horn
  Cc: kbuild-all, John Johansen, apparmor, jannh, linux-kernel,
	Cyrill Gorcunov, kernel test robot

[-- Attachment #1: Type: text/plain, Size: 1918 bytes --]

Hi Jann,

Thank you for the patch! Perhaps something to improve:

[auto build test WARNING on security/next]
[also build test WARNING on v4.19-rc5 next-20180928]
[if your patch is applied to the wrong git tree, please drop us a note to help improve the system]

url:    https://github.com/0day-ci/linux/commits/Jann-Horn/apparmor-don-t-try-to-replace-stale-label-in-ptraceme-check/20180929-101346
base:   https://git.kernel.org/pub/scm/linux/kernel/git/jmorris/linux-security.git next
config: x86_64-allmodconfig (attached as .config)
compiler: gcc-7 (Debian 7.3.0-1) 7.3.0
reproduce:
        # save the attached .config to linux build tree
        make ARCH=x86_64 

All warnings (new ones prefixed by >>):

   drivers/tty/serial/8250/8250_port.c:332:14: warning: symbol 'au_serial_in' was not declared. Should it be static?
   drivers/tty/serial/8250/8250_port.c:342:6: warning: symbol 'au_serial_out' was not declared. Should it be static?
>> include/linux/spinlock.h:354:9: warning: context imbalance in 'serial8250_console_write' - unexpected unlock

vim +/serial8250_console_write +354 include/linux/spinlock.h

c2f21ce2 Thomas Gleixner 2009-12-02  351  
3490565b Denys Vlasenko  2015-07-13  352  static __always_inline void spin_unlock_irqrestore(spinlock_t *lock, unsigned long flags)
c2f21ce2 Thomas Gleixner 2009-12-02  353  {
c2f21ce2 Thomas Gleixner 2009-12-02 @354  	raw_spin_unlock_irqrestore(&lock->rlock, flags);
c2f21ce2 Thomas Gleixner 2009-12-02  355  }
c2f21ce2 Thomas Gleixner 2009-12-02  356  

:::::: The code at line 354 was first introduced by commit
:::::: c2f21ce2e31286a0a32f8da0a7856e9ca1122ef3 locking: Implement new raw_spinlock

:::::: TO: Thomas Gleixner <tglx@linutronix.de>
:::::: CC: Thomas Gleixner <tglx@linutronix.de>

---
0-DAY kernel test infrastructure                Open Source Technology Center
https://lists.01.org/pipermail/kbuild-all                   Intel Corporation

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^ permalink raw reply	[flat|nested] 5+ messages in thread

end of thread, other threads:[~2018-09-30  4:34 UTC | newest]

Thread overview: 5+ messages (download: mbox.gz / follow: Atom feed)
-- links below jump to the message on this page --
2018-09-29  1:49 [PATCH] apparmor: don't try to replace stale label in ptraceme check Jann Horn
2018-09-29  4:38 ` John Johansen
2018-09-29 23:23 ` kbuild test robot
2018-09-29 23:38   ` Jann Horn
2018-09-30  4:34 ` kbuild test robot

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