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bpf: Add bpf_ktime_get_coarse_ns helper #364

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Pull request for series with
subject: bpf: Add bpf_ktime_get_coarse_ns helper
version: 1
url: https://patchwork.kernel.org/project/netdevbpf/list/?series=386259

@kernel-patches-bot
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Master branch: de91e63
series: https://patchwork.kernel.org/project/netdevbpf/list/?series=386259
version: 1

kernel-patches-bot and others added 2 commits November 17, 2020 13:17
@kernel-patches-bot
adding ci files
8b38697
@ubique @kernel-patches-bot
bpf: Add bpf_ktime_get_coarse_ns helper
aa8d228 
The helper uses CLOCK_MONOTONIC_COARSE source of time that is less
accurate but more performant.

We have a BPF CGROUP_SKB firewall that supports event logging through
bpf_perf_event_output(). Each event has a timestamp and currently we use
bpf_ktime_get_ns() for it. Use of bpf_ktime_get_coarse_ns() saves ~15-20
ns in time required for event logging.

bpf_ktime_get_ns():
EgressLogByRemoteEndpoint                                  113.82ns    8.79M
bpf_ktime_get_coarse_ns():
EgressLogByRemoteEndpoint                                   95.40ns   10.48M

Signed-off-by: Dmitrii Banshchikov <[email protected]>
Acked-by: Martin KaFai Lau <[email protected]>
@kernel-patches-bot
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Master branch: cbf398d
series: https://patchwork.kernel.org/project/netdevbpf/list/?series=386259
version: 1

@kernel-patches-bot
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Master branch: ea87ae8
series: https://patchwork.kernel.org/project/netdevbpf/list/?series=386259
version: 1

Pull request is NOT updated. Failed to apply https://patchwork.kernel.org/project/netdevbpf/list/?series=386259
error message:

Cmd('git') failed due to: exit code(128)
  cmdline: git am -3
  stdout: 'Applying: bpf: Add bpf_ktime_get_coarse_ns helper
Using index info to reconstruct a base tree...
M	include/uapi/linux/bpf.h
M	tools/include/uapi/linux/bpf.h
Falling back to patching base and 3-way merge...
Auto-merging tools/include/uapi/linux/bpf.h
CONFLICT (content): Merge conflict in tools/include/uapi/linux/bpf.h
Auto-merging include/uapi/linux/bpf.h
CONFLICT (content): Merge conflict in include/uapi/linux/bpf.h
Patch failed at 0001 bpf: Add bpf_ktime_get_coarse_ns helper
When you have resolved this problem, run "git am --continue".
If you prefer to skip this patch, run "git am --skip" instead.
To restore the original branch and stop patching, run "git am --abort".'
  stderr: 'error: Failed to merge in the changes.
hint: Use 'git am --show-current-patch' to see the failed patch'

conflict:

diff --cc include/uapi/linux/bpf.h
index a52299b80b9d,b637b68b10a9..000000000000
--- a/include/uapi/linux/bpf.h
+++ b/include/uapi/linux/bpf.h
@@@ -3788,15 -3788,13 +3788,25 @@@ union bpf_attr 
   *	Return
   *		Pointer to the current task.
   *
++<<<<<<< HEAD
 + * long bpf_bprm_opts_set(struct linux_binprm *bprm, u64 flags)
 + *	Description
 + *		Set or clear certain options on *bprm*:
 + *
 + *		**BPF_F_BPRM_SECUREEXEC** Set the secureexec bit
 + *		which sets the **AT_SECURE** auxv for glibc. The bit
 + *		is cleared if the flag is not specified.
 + *	Return
 + *		**-EINVAL** if invalid *flags* are passed, zero otherwise.
++=======
+  * u64 bpf_ktime_get_coarse_ns(void)
+  * 	Description
+  * 		Return a coarse-grained version of the time elapsed since system boot, in nanoseconds.
+  * 		Does not include time the system was suspended.
+  * 		See: **clock_gettime**\ (**CLOCK_MONOTONIC_COARSE**)
+  * 	Return
+  * 		Current *ktime*.
++>>>>>>> bpf: Add bpf_ktime_get_coarse_ns helper
   */
  #define __BPF_FUNC_MAPPER(FN)		\
  	FN(unspec),			\
@@@ -3958,7 -3956,7 +3968,11 @@@
  	FN(task_storage_get),		\
  	FN(task_storage_delete),	\
  	FN(get_current_task_btf),	\
++<<<<<<< HEAD
 +	FN(bprm_opts_set),		\
++=======
+ 	FN(ktime_get_coarse_ns),	\
++>>>>>>> bpf: Add bpf_ktime_get_coarse_ns helper
  	/* */
  
  /* integer value in 'imm' field of BPF_CALL instruction selects which helper
diff --cc tools/include/uapi/linux/bpf.h
index a52299b80b9d,b637b68b10a9..000000000000
--- a/tools/include/uapi/linux/bpf.h
+++ b/tools/include/uapi/linux/bpf.h
@@@ -3788,15 -3788,13 +3788,25 @@@ union bpf_attr 
   *	Return
   *		Pointer to the current task.
   *
++<<<<<<< HEAD
 + * long bpf_bprm_opts_set(struct linux_binprm *bprm, u64 flags)
 + *	Description
 + *		Set or clear certain options on *bprm*:
 + *
 + *		**BPF_F_BPRM_SECUREEXEC** Set the secureexec bit
 + *		which sets the **AT_SECURE** auxv for glibc. The bit
 + *		is cleared if the flag is not specified.
 + *	Return
 + *		**-EINVAL** if invalid *flags* are passed, zero otherwise.
++=======
+  * u64 bpf_ktime_get_coarse_ns(void)
+  * 	Description
+  * 		Return a coarse-grained version of the time elapsed since system boot, in nanoseconds.
+  * 		Does not include time the system was suspended.
+  * 		See: **clock_gettime**\ (**CLOCK_MONOTONIC_COARSE**)
+  * 	Return
+  * 		Current *ktime*.
++>>>>>>> bpf: Add bpf_ktime_get_coarse_ns helper
   */
  #define __BPF_FUNC_MAPPER(FN)		\
  	FN(unspec),			\
@@@ -3958,7 -3956,7 +3968,11 @@@
  	FN(task_storage_get),		\
  	FN(task_storage_delete),	\
  	FN(get_current_task_btf),	\
++<<<<<<< HEAD
 +	FN(bprm_opts_set),		\
++=======
+ 	FN(ktime_get_coarse_ns),	\
++>>>>>>> bpf: Add bpf_ktime_get_coarse_ns helper
  	/* */
  
  /* integer value in 'imm' field of BPF_CALL instruction selects which helper

@kernel-patches-bot
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At least one diff in series https://patchwork.kernel.org/project/netdevbpf/list/?series=386259 irrelevant now. Closing PR.

@kernel-patches-bot kernel-patches-bot deleted the series/386259=>bpf-next branch November 19, 2020 16:53
kernel-patches-daemon-bpf bot pushed a commit that referenced this pull request Jul 14, 2023
@davem330
net: prevent skb corruption on frag list segmentation
c329b26 
Ian reported several skb corruptions triggered by rx-gro-list,
collecting different oops alike:

[   62.624003] BUG: kernel NULL pointer dereference, address: 00000000000000c0
[   62.631083] #PF: supervisor read access in kernel mode
[   62.636312] #PF: error_code(0x0000) - not-present page
[   62.641541] PGD 0 P4D 0
[   62.644174] Oops: 0000 [#1] PREEMPT SMP NOPTI
[   62.648629] CPU: 1 PID: 913 Comm: napi/eno2-79 Not tainted 6.4.0 #364
[   62.655162] Hardware name: Supermicro Super Server/A2SDi-12C-HLN4F, BIOS 1.7a 10/13/2022
[   62.663344] RIP: 0010:__udp_gso_segment (./include/linux/skbuff.h:2858
./include/linux/udp.h:23 net/ipv4/udp_offload.c:228 net/ipv4/udp_offload.c:261
net/ipv4/udp_offload.c:277)
[   62.687193] RSP: 0018:ffffbd3a83b4f868 EFLAGS: 00010246
[   62.692515] RAX: 00000000000000ce RBX: 0000000000000000 RCX: 0000000000000000
[   62.699743] RDX: ffffa124def8a000 RSI: 0000000000000079 RDI: ffffa125952a14d4
[   62.706970] RBP: ffffa124def8a000 R08: 0000000000000022 R09: 00002000001558c9
[   62.714199] R10: 0000000000000000 R11: 00000000be554639 R12: 00000000000000e2
[   62.721426] R13: ffffa125952a1400 R14: ffffa125952a1400 R15: 00002000001558c9
[   62.728654] FS:  0000000000000000(0000) GS:ffffa127efa40000(0000)
knlGS:0000000000000000
[   62.736852] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   62.742702] CR2: 00000000000000c0 CR3: 00000001034b0000 CR4: 00000000003526e0
[   62.749948] Call Trace:
[   62.752498]  <TASK>
[   62.779267] inet_gso_segment (net/ipv4/af_inet.c:1398)
[   62.787605] skb_mac_gso_segment (net/core/gro.c:141)
[   62.791906] __skb_gso_segment (net/core/dev.c:3403 (discriminator 2))
[   62.800492] validate_xmit_skb (./include/linux/netdevice.h:4862
net/core/dev.c:3659)
[   62.804695] validate_xmit_skb_list (net/core/dev.c:3710)
[   62.809158] sch_direct_xmit (net/sched/sch_generic.c:330)
[   62.813198] __dev_queue_xmit (net/core/dev.c:3805 net/core/dev.c:4210)
net/netfilter/core.c:626)
[   62.821093] br_dev_queue_push_xmit (net/bridge/br_forward.c:55)
[   62.825652] maybe_deliver (net/bridge/br_forward.c:193)
[   62.829420] br_flood (net/bridge/br_forward.c:233)
[   62.832758] br_handle_frame_finish (net/bridge/br_input.c:215)
[   62.837403] br_handle_frame (net/bridge/br_input.c:298
net/bridge/br_input.c:416)
[   62.851417] __netif_receive_skb_core.constprop.0 (net/core/dev.c:5387)
[   62.866114] __netif_receive_skb_list_core (net/core/dev.c:5570)
[   62.871367] netif_receive_skb_list_internal (net/core/dev.c:5638
net/core/dev.c:5727)
[   62.876795] napi_complete_done (./include/linux/list.h:37
./include/net/gro.h:434 ./include/net/gro.h:429 net/core/dev.c:6067)
[   62.881004] ixgbe_poll (drivers/net/ethernet/intel/ixgbe/ixgbe_main.c:3191)
[   62.893534] __napi_poll (net/core/dev.c:6498)
[   62.897133] napi_threaded_poll (./include/linux/netpoll.h:89
net/core/dev.c:6640)
[   62.905276] kthread (kernel/kthread.c:379)
[   62.913435] ret_from_fork (arch/x86/entry/entry_64.S:314)
[   62.917119]  </TASK>

In the critical scenario, rx-gro-list GRO-ed packets are fed, via a
bridge, both to the local input path and to an egress device (tun).

The segmentation of such packets unsafely writes to the cloned skbs
with shared heads.

This change addresses the issue by uncloning as needed the
to-be-segmented skbs.

Reported-by: Ian Kumlien <[email protected]>
Tested-by: Ian Kumlien <[email protected]>
Fixes: 3a1296a ("net: Support GRO/GSO fraglist chaining.")
Signed-off-by: Paolo Abeni <[email protected]>
Reviewed-by: Eric Dumazet <[email protected]>
Signed-off-by: David S. Miller <[email protected]>
kernel-patches-daemon-bpf bot pushed a commit that referenced this pull request Dec 19, 2024
@borkmann
selftests/bpf: Extend netkit tests to validate set {head,tail}room
8dfb348 
Extend the netkit selftests to specify and validate the {head,tail}room
on the netdevice:

  # ./vmtest.sh -- ./test_progs -t netkit
  [...]
  ./test_progs -t netkit
  [    1.174147] bpf_testmod: loading out-of-tree module taints kernel.
  [    1.174585] bpf_testmod: module verification failed: signature and/or required key missing - tainting kernel
  [    1.422307] tsc: Refined TSC clocksource calibration: 3407.983 MHz
  [    1.424511] clocksource: tsc: mask: 0xffffffffffffffff max_cycles: 0x311fc3e5084, max_idle_ns: 440795359833 ns
  [    1.428092] clocksource: Switched to clocksource tsc
  #363     tc_netkit_basic:OK
  #364     tc_netkit_device:OK
  #365     tc_netkit_multi_links:OK
  #366     tc_netkit_multi_opts:OK
  #367     tc_netkit_neigh_links:OK
  #368     tc_netkit_pkt_type:OK
  #369     tc_netkit_scrub:OK
  Summary: 7/0 PASSED, 0 SKIPPED, 0 FAILED

Signed-off-by: Daniel Borkmann <[email protected]>
Cc: Nikolay Aleksandrov <[email protected]>
kernel-patches-daemon-bpf bot pushed a commit that referenced this pull request Dec 20, 2024
@borkmann
selftests/bpf: Extend netkit tests to validate set {head,tail}room
43e7fce 
Extend the netkit selftests to specify and validate the {head,tail}room
on the netdevice:

  # ./vmtest.sh -- ./test_progs -t netkit
  [...]
  ./test_progs -t netkit
  [    1.174147] bpf_testmod: loading out-of-tree module taints kernel.
  [    1.174585] bpf_testmod: module verification failed: signature and/or required key missing - tainting kernel
  [    1.422307] tsc: Refined TSC clocksource calibration: 3407.983 MHz
  [    1.424511] clocksource: tsc: mask: 0xffffffffffffffff max_cycles: 0x311fc3e5084, max_idle_ns: 440795359833 ns
  [    1.428092] clocksource: Switched to clocksource tsc
  #363     tc_netkit_basic:OK
  #364     tc_netkit_device:OK
  #365     tc_netkit_multi_links:OK
  #366     tc_netkit_multi_opts:OK
  #367     tc_netkit_neigh_links:OK
  #368     tc_netkit_pkt_type:OK
  #369     tc_netkit_scrub:OK
  Summary: 7/0 PASSED, 0 SKIPPED, 0 FAILED

Signed-off-by: Daniel Borkmann <[email protected]>
Cc: Nikolay Aleksandrov <[email protected]>
kernel-patches-daemon-bpf bot pushed a commit that referenced this pull request Dec 21, 2024
@borkmann
selftests/bpf: Extend netkit tests to validate set {head,tail}room
5c15a20 
Extend the netkit selftests to specify and validate the {head,tail}room
on the netdevice:

  # ./vmtest.sh -- ./test_progs -t netkit
  [...]
  ./test_progs -t netkit
  [    1.174147] bpf_testmod: loading out-of-tree module taints kernel.
  [    1.174585] bpf_testmod: module verification failed: signature and/or required key missing - tainting kernel
  [    1.422307] tsc: Refined TSC clocksource calibration: 3407.983 MHz
  [    1.424511] clocksource: tsc: mask: 0xffffffffffffffff max_cycles: 0x311fc3e5084, max_idle_ns: 440795359833 ns
  [    1.428092] clocksource: Switched to clocksource tsc
  #363     tc_netkit_basic:OK
  #364     tc_netkit_device:OK
  #365     tc_netkit_multi_links:OK
  #366     tc_netkit_multi_opts:OK
  #367     tc_netkit_neigh_links:OK
  #368     tc_netkit_pkt_type:OK
  #369     tc_netkit_scrub:OK
  Summary: 7/0 PASSED, 0 SKIPPED, 0 FAILED

Signed-off-by: Daniel Borkmann <[email protected]>
Cc: Nikolay Aleksandrov <[email protected]>
kernel-patches-daemon-bpf bot pushed a commit that referenced this pull request Dec 21, 2024
@borkmann
selftests/bpf: Extend netkit tests to validate set {head,tail}room
4435ea9 
Extend the netkit selftests to specify and validate the {head,tail}room
on the netdevice:

  # ./vmtest.sh -- ./test_progs -t netkit
  [...]
  ./test_progs -t netkit
  [    1.174147] bpf_testmod: loading out-of-tree module taints kernel.
  [    1.174585] bpf_testmod: module verification failed: signature and/or required key missing - tainting kernel
  [    1.422307] tsc: Refined TSC clocksource calibration: 3407.983 MHz
  [    1.424511] clocksource: tsc: mask: 0xffffffffffffffff max_cycles: 0x311fc3e5084, max_idle_ns: 440795359833 ns
  [    1.428092] clocksource: Switched to clocksource tsc
  #363     tc_netkit_basic:OK
  #364     tc_netkit_device:OK
  #365     tc_netkit_multi_links:OK
  #366     tc_netkit_multi_opts:OK
  #367     tc_netkit_neigh_links:OK
  #368     tc_netkit_pkt_type:OK
  #369     tc_netkit_scrub:OK
  Summary: 7/0 PASSED, 0 SKIPPED, 0 FAILED

Signed-off-by: Daniel Borkmann <[email protected]>
Cc: Nikolay Aleksandrov <[email protected]>
Acked-by: Nikolay Aleksandrov <[email protected]>
kernel-patches-daemon-bpf bot pushed a commit that referenced this pull request Dec 23, 2024
@borkmann
selftests/bpf: Extend netkit tests to validate set {head,tail}room
1d8d52a 
Extend the netkit selftests to specify and validate the {head,tail}room
on the netdevice:

  # ./vmtest.sh -- ./test_progs -t netkit
  [...]
  ./test_progs -t netkit
  [    1.174147] bpf_testmod: loading out-of-tree module taints kernel.
  [    1.174585] bpf_testmod: module verification failed: signature and/or required key missing - tainting kernel
  [    1.422307] tsc: Refined TSC clocksource calibration: 3407.983 MHz
  [    1.424511] clocksource: tsc: mask: 0xffffffffffffffff max_cycles: 0x311fc3e5084, max_idle_ns: 440795359833 ns
  [    1.428092] clocksource: Switched to clocksource tsc
  #363     tc_netkit_basic:OK
  #364     tc_netkit_device:OK
  #365     tc_netkit_multi_links:OK
  #366     tc_netkit_multi_opts:OK
  #367     tc_netkit_neigh_links:OK
  #368     tc_netkit_pkt_type:OK
  #369     tc_netkit_scrub:OK
  Summary: 7/0 PASSED, 0 SKIPPED, 0 FAILED

Signed-off-by: Daniel Borkmann <[email protected]>
Cc: Nikolay Aleksandrov <[email protected]>
Acked-by: Nikolay Aleksandrov <[email protected]>
kernel-patches-daemon-bpf bot pushed a commit that referenced this pull request Dec 23, 2024
@borkmann
selftests/bpf: Extend netkit tests to validate set {head,tail}room
94aaf15 
Extend the netkit selftests to specify and validate the {head,tail}room
on the netdevice:

  # ./vmtest.sh -- ./test_progs -t netkit
  [...]
  ./test_progs -t netkit
  [    1.174147] bpf_testmod: loading out-of-tree module taints kernel.
  [    1.174585] bpf_testmod: module verification failed: signature and/or required key missing - tainting kernel
  [    1.422307] tsc: Refined TSC clocksource calibration: 3407.983 MHz
  [    1.424511] clocksource: tsc: mask: 0xffffffffffffffff max_cycles: 0x311fc3e5084, max_idle_ns: 440795359833 ns
  [    1.428092] clocksource: Switched to clocksource tsc
  #363     tc_netkit_basic:OK
  #364     tc_netkit_device:OK
  #365     tc_netkit_multi_links:OK
  #366     tc_netkit_multi_opts:OK
  #367     tc_netkit_neigh_links:OK
  #368     tc_netkit_pkt_type:OK
  #369     tc_netkit_scrub:OK
  Summary: 7/0 PASSED, 0 SKIPPED, 0 FAILED

Signed-off-by: Daniel Borkmann <[email protected]>
Cc: Nikolay Aleksandrov <[email protected]>
Acked-by: Nikolay Aleksandrov <[email protected]>
kernel-patches-daemon-bpf bot pushed a commit that referenced this pull request Dec 30, 2024
@borkmann
selftests/bpf: Extend netkit tests to validate set {head,tail}room
66b73f1 
Extend the netkit selftests to specify and validate the {head,tail}room
on the netdevice:

  # ./vmtest.sh -- ./test_progs -t netkit
  [...]
  ./test_progs -t netkit
  [    1.174147] bpf_testmod: loading out-of-tree module taints kernel.
  [    1.174585] bpf_testmod: module verification failed: signature and/or required key missing - tainting kernel
  [    1.422307] tsc: Refined TSC clocksource calibration: 3407.983 MHz
  [    1.424511] clocksource: tsc: mask: 0xffffffffffffffff max_cycles: 0x311fc3e5084, max_idle_ns: 440795359833 ns
  [    1.428092] clocksource: Switched to clocksource tsc
  #363     tc_netkit_basic:OK
  #364     tc_netkit_device:OK
  #365     tc_netkit_multi_links:OK
  #366     tc_netkit_multi_opts:OK
  #367     tc_netkit_neigh_links:OK
  #368     tc_netkit_pkt_type:OK
  #369     tc_netkit_scrub:OK
  Summary: 7/0 PASSED, 0 SKIPPED, 0 FAILED

Signed-off-by: Daniel Borkmann <[email protected]>
Cc: Nikolay Aleksandrov <[email protected]>
Acked-by: Nikolay Aleksandrov <[email protected]>
kernel-patches-daemon-bpf bot pushed a commit that referenced this pull request Dec 30, 2024
@borkmann
selftests/bpf: Extend netkit tests to validate set {head,tail}room
7f84353 
Extend the netkit selftests to specify and validate the {head,tail}room
on the netdevice:

  # ./vmtest.sh -- ./test_progs -t netkit
  [...]
  ./test_progs -t netkit
  [    1.174147] bpf_testmod: loading out-of-tree module taints kernel.
  [    1.174585] bpf_testmod: module verification failed: signature and/or required key missing - tainting kernel
  [    1.422307] tsc: Refined TSC clocksource calibration: 3407.983 MHz
  [    1.424511] clocksource: tsc: mask: 0xffffffffffffffff max_cycles: 0x311fc3e5084, max_idle_ns: 440795359833 ns
  [    1.428092] clocksource: Switched to clocksource tsc
  #363     tc_netkit_basic:OK
  #364     tc_netkit_device:OK
  #365     tc_netkit_multi_links:OK
  #366     tc_netkit_multi_opts:OK
  #367     tc_netkit_neigh_links:OK
  #368     tc_netkit_pkt_type:OK
  #369     tc_netkit_scrub:OK
  Summary: 7/0 PASSED, 0 SKIPPED, 0 FAILED

Signed-off-by: Daniel Borkmann <[email protected]>
Cc: Nikolay Aleksandrov <[email protected]>
Acked-by: Nikolay Aleksandrov <[email protected]>
kernel-patches-daemon-bpf bot pushed a commit that referenced this pull request Dec 31, 2024
@borkmann
selftests/bpf: Extend netkit tests to validate set {head,tail}room
2d766d0 
Extend the netkit selftests to specify and validate the {head,tail}room
on the netdevice:

  # ./vmtest.sh -- ./test_progs -t netkit
  [...]
  ./test_progs -t netkit
  [    1.174147] bpf_testmod: loading out-of-tree module taints kernel.
  [    1.174585] bpf_testmod: module verification failed: signature and/or required key missing - tainting kernel
  [    1.422307] tsc: Refined TSC clocksource calibration: 3407.983 MHz
  [    1.424511] clocksource: tsc: mask: 0xffffffffffffffff max_cycles: 0x311fc3e5084, max_idle_ns: 440795359833 ns
  [    1.428092] clocksource: Switched to clocksource tsc
  #363     tc_netkit_basic:OK
  #364     tc_netkit_device:OK
  #365     tc_netkit_multi_links:OK
  #366     tc_netkit_multi_opts:OK
  #367     tc_netkit_neigh_links:OK
  #368     tc_netkit_pkt_type:OK
  #369     tc_netkit_scrub:OK
  Summary: 7/0 PASSED, 0 SKIPPED, 0 FAILED

Signed-off-by: Daniel Borkmann <[email protected]>
Cc: Nikolay Aleksandrov <[email protected]>
Acked-by: Nikolay Aleksandrov <[email protected]>
kernel-patches-daemon-bpf bot pushed a commit that referenced this pull request Jan 3, 2025
@borkmann
selftests/bpf: Extend netkit tests to validate set {head,tail}room
742a11d 
Extend the netkit selftests to specify and validate the {head,tail}room
on the netdevice:

  # ./vmtest.sh -- ./test_progs -t netkit
  [...]
  ./test_progs -t netkit
  [    1.174147] bpf_testmod: loading out-of-tree module taints kernel.
  [    1.174585] bpf_testmod: module verification failed: signature and/or required key missing - tainting kernel
  [    1.422307] tsc: Refined TSC clocksource calibration: 3407.983 MHz
  [    1.424511] clocksource: tsc: mask: 0xffffffffffffffff max_cycles: 0x311fc3e5084, max_idle_ns: 440795359833 ns
  [    1.428092] clocksource: Switched to clocksource tsc
  #363     tc_netkit_basic:OK
  #364     tc_netkit_device:OK
  #365     tc_netkit_multi_links:OK
  #366     tc_netkit_multi_opts:OK
  #367     tc_netkit_neigh_links:OK
  #368     tc_netkit_pkt_type:OK
  #369     tc_netkit_scrub:OK
  Summary: 7/0 PASSED, 0 SKIPPED, 0 FAILED

Signed-off-by: Daniel Borkmann <[email protected]>
Cc: Nikolay Aleksandrov <[email protected]>
Acked-by: Nikolay Aleksandrov <[email protected]>
kernel-patches-daemon-bpf bot pushed a commit that referenced this pull request Jan 6, 2025
@borkmann
selftests/bpf: Extend netkit tests to validate set {head,tail}room
058268e 
Extend the netkit selftests to specify and validate the {head,tail}room
on the netdevice:

  # ./vmtest.sh -- ./test_progs -t netkit
  [...]
  ./test_progs -t netkit
  [    1.174147] bpf_testmod: loading out-of-tree module taints kernel.
  [    1.174585] bpf_testmod: module verification failed: signature and/or required key missing - tainting kernel
  [    1.422307] tsc: Refined TSC clocksource calibration: 3407.983 MHz
  [    1.424511] clocksource: tsc: mask: 0xffffffffffffffff max_cycles: 0x311fc3e5084, max_idle_ns: 440795359833 ns
  [    1.428092] clocksource: Switched to clocksource tsc
  #363     tc_netkit_basic:OK
  #364     tc_netkit_device:OK
  #365     tc_netkit_multi_links:OK
  #366     tc_netkit_multi_opts:OK
  #367     tc_netkit_neigh_links:OK
  #368     tc_netkit_pkt_type:OK
  #369     tc_netkit_scrub:OK
  Summary: 7/0 PASSED, 0 SKIPPED, 0 FAILED

Signed-off-by: Daniel Borkmann <[email protected]>
Acked-by: Nikolay Aleksandrov <[email protected]>
Link: https://lore.kernel.org/bpf/[email protected]
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