WARNING: Missing a blank line after declarations
torvalds#91: FILE: mm/swapfile.c:285:
+		unsigned int tail = cluster_next(&list->tail);
+		cluster_set_next(&ci[tail], idx);

WARNING: line over 80 characters
torvalds#261: FILE: mm/swapfile.c:2347:
+			cluster_list_add_tail(&p->free_clusters, cluster_info, idx);

total: 0 errors, 2 warnings, 222 lines checked

NOTE: For some of the reported defects, checkpatch may be able to
      mechanically convert to the typical style using --fix or --fix-inplace.

./patches/mm-swap-add-swap_cluster_list.patch has style problems, please review.

NOTE: If any of the errors are false positives, please report
      them to the maintainer, see CHECKPATCH in MAINTAINERS.

Please run checkpatch prior to sending patches

Cc: Huang Ying <ying.huang@intel.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>

WARNING: Missing a blank line after declarations
torvalds#91: FILE: mm/swapfile.c:285:
+		unsigned int tail = cluster_next(&list->tail);
+		cluster_set_next(&ci[tail], idx);

WARNING: line over 80 characters
torvalds#261: FILE: mm/swapfile.c:2347:
+			cluster_list_add_tail(&p->free_clusters, cluster_info, idx);

total: 0 errors, 2 warnings, 222 lines checked

NOTE: For some of the reported defects, checkpatch may be able to
      mechanically convert to the typical style using --fix or --fix-inplace.

./patches/mm-swap-add-swap_cluster_list.patch has style problems, please review.

NOTE: If any of the errors are false positives, please report
      them to the maintainer, see CHECKPATCH in MAINTAINERS.

Please run checkpatch prior to sending patches

Cc: Huang Ying <ying.huang@intel.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>

WARNING: Missing a blank line after declarations
torvalds#91: FILE: mm/swapfile.c:285:
+		unsigned int tail = cluster_next(&list->tail);
+		cluster_set_next(&ci[tail], idx);

WARNING: line over 80 characters
torvalds#261: FILE: mm/swapfile.c:2347:
+			cluster_list_add_tail(&p->free_clusters, cluster_info, idx);

total: 0 errors, 2 warnings, 222 lines checked

NOTE: For some of the reported defects, checkpatch may be able to
      mechanically convert to the typical style using --fix or --fix-inplace.

./patches/mm-swap-add-swap_cluster_list.patch has style problems, please review.

NOTE: If any of the errors are false positives, please report
      them to the maintainer, see CHECKPATCH in MAINTAINERS.

Please run checkpatch prior to sending patches

Cc: Huang Ying <ying.huang@intel.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>

WARNING: Missing a blank line after declarations
torvalds#91: FILE: mm/swapfile.c:285:
+		unsigned int tail = cluster_next(&list->tail);
+		cluster_set_next(&ci[tail], idx);

WARNING: line over 80 characters
torvalds#261: FILE: mm/swapfile.c:2347:
+			cluster_list_add_tail(&p->free_clusters, cluster_info, idx);

total: 0 errors, 2 warnings, 222 lines checked

NOTE: For some of the reported defects, checkpatch may be able to
      mechanically convert to the typical style using --fix or --fix-inplace.

./patches/mm-swap-add-swap_cluster_list.patch has style problems, please review.

NOTE: If any of the errors are false positives, please report
      them to the maintainer, see CHECKPATCH in MAINTAINERS.

Please run checkpatch prior to sending patches

Cc: Huang Ying <ying.huang@intel.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>

WARNING: Missing a blank line after declarations
torvalds#91: FILE: mm/swapfile.c:285:
+		unsigned int tail = cluster_next(&list->tail);
+		cluster_set_next(&ci[tail], idx);

WARNING: line over 80 characters
torvalds#261: FILE: mm/swapfile.c:2347:
+			cluster_list_add_tail(&p->free_clusters, cluster_info, idx);

total: 0 errors, 2 warnings, 222 lines checked

NOTE: For some of the reported defects, checkpatch may be able to
      mechanically convert to the typical style using --fix or --fix-inplace.

./patches/mm-swap-add-swap_cluster_list.patch has style problems, please review.

NOTE: If any of the errors are false positives, please report
      them to the maintainer, see CHECKPATCH in MAINTAINERS.

Please run checkpatch prior to sending patches

Cc: Huang Ying <ying.huang@intel.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>

WARNING: Missing a blank line after declarations
torvalds#91: FILE: mm/swapfile.c:285:
+		unsigned int tail = cluster_next(&list->tail);
+		cluster_set_next(&ci[tail], idx);

WARNING: line over 80 characters
torvalds#261: FILE: mm/swapfile.c:2347:
+			cluster_list_add_tail(&p->free_clusters, cluster_info, idx);

total: 0 errors, 2 warnings, 222 lines checked

NOTE: For some of the reported defects, checkpatch may be able to
      mechanically convert to the typical style using --fix or --fix-inplace.

./patches/mm-swap-add-swap_cluster_list.patch has style problems, please review.

NOTE: If any of the errors are false positives, please report
      them to the maintainer, see CHECKPATCH in MAINTAINERS.

Please run checkpatch prior to sending patches

Cc: Huang Ying <ying.huang@intel.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>

WARNING: Missing a blank line after declarations
torvalds#91: FILE: mm/swapfile.c:285:
+		unsigned int tail = cluster_next(&list->tail);
+		cluster_set_next(&ci[tail], idx);

WARNING: line over 80 characters
torvalds#261: FILE: mm/swapfile.c:2347:
+			cluster_list_add_tail(&p->free_clusters, cluster_info, idx);

total: 0 errors, 2 warnings, 222 lines checked

NOTE: For some of the reported defects, checkpatch may be able to
      mechanically convert to the typical style using --fix or --fix-inplace.

./patches/mm-swap-add-swap_cluster_list.patch has style problems, please review.

NOTE: If any of the errors are false positives, please report
      them to the maintainer, see CHECKPATCH in MAINTAINERS.

Please run checkpatch prior to sending patches

Cc: Huang Ying <ying.huang@intel.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>

WARNING: Missing a blank line after declarations
torvalds#91: FILE: mm/swapfile.c:285:
+		unsigned int tail = cluster_next(&list->tail);
+		cluster_set_next(&ci[tail], idx);

WARNING: line over 80 characters
torvalds#261: FILE: mm/swapfile.c:2347:
+			cluster_list_add_tail(&p->free_clusters, cluster_info, idx);

total: 0 errors, 2 warnings, 222 lines checked

NOTE: For some of the reported defects, checkpatch may be able to
      mechanically convert to the typical style using --fix or --fix-inplace.

./patches/mm-swap-add-swap_cluster_list.patch has style problems, please review.

NOTE: If any of the errors are false positives, please report
      them to the maintainer, see CHECKPATCH in MAINTAINERS.

Please run checkpatch prior to sending patches

Cc: Huang Ying <ying.huang@intel.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>

WARNING: Missing a blank line after declarations
torvalds#91: FILE: mm/swapfile.c:285:
+		unsigned int tail = cluster_next(&list->tail);
+		cluster_set_next(&ci[tail], idx);

WARNING: line over 80 characters
torvalds#261: FILE: mm/swapfile.c:2347:
+			cluster_list_add_tail(&p->free_clusters, cluster_info, idx);

total: 0 errors, 2 warnings, 222 lines checked

NOTE: For some of the reported defects, checkpatch may be able to
      mechanically convert to the typical style using --fix or --fix-inplace.

./patches/mm-swap-add-swap_cluster_list.patch has style problems, please review.

NOTE: If any of the errors are false positives, please report
      them to the maintainer, see CHECKPATCH in MAINTAINERS.

Please run checkpatch prior to sending patches

Cc: Huang Ying <ying.huang@intel.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>

WARNING: Missing a blank line after declarations
torvalds#91: FILE: mm/swapfile.c:285:
+		unsigned int tail = cluster_next(&list->tail);
+		cluster_set_next(&ci[tail], idx);

WARNING: line over 80 characters
torvalds#261: FILE: mm/swapfile.c:2347:
+			cluster_list_add_tail(&p->free_clusters, cluster_info, idx);

total: 0 errors, 2 warnings, 222 lines checked

NOTE: For some of the reported defects, checkpatch may be able to
      mechanically convert to the typical style using --fix or --fix-inplace.

./patches/mm-swap-add-swap_cluster_list.patch has style problems, please review.

NOTE: If any of the errors are false positives, please report
      them to the maintainer, see CHECKPATCH in MAINTAINERS.

Please run checkpatch prior to sending patches

Cc: Huang Ying <ying.huang@intel.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>

WARNING: Missing a blank line after declarations
torvalds#91: FILE: mm/swapfile.c:285:
+		unsigned int tail = cluster_next(&list->tail);
+		cluster_set_next(&ci[tail], idx);

WARNING: line over 80 characters
torvalds#261: FILE: mm/swapfile.c:2347:
+			cluster_list_add_tail(&p->free_clusters, cluster_info, idx);

total: 0 errors, 2 warnings, 222 lines checked

NOTE: For some of the reported defects, checkpatch may be able to
      mechanically convert to the typical style using --fix or --fix-inplace.

./patches/mm-swap-add-swap_cluster_list.patch has style problems, please review.

NOTE: If any of the errors are false positives, please report
      them to the maintainer, see CHECKPATCH in MAINTAINERS.

Please run checkpatch prior to sending patches

Cc: Huang Ying <ying.huang@intel.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>

WARNING: Missing a blank line after declarations
torvalds#91: FILE: mm/swapfile.c:285:
+		unsigned int tail = cluster_next(&list->tail);
+		cluster_set_next(&ci[tail], idx);

WARNING: line over 80 characters
torvalds#261: FILE: mm/swapfile.c:2347:
+			cluster_list_add_tail(&p->free_clusters, cluster_info, idx);

total: 0 errors, 2 warnings, 222 lines checked

NOTE: For some of the reported defects, checkpatch may be able to
      mechanically convert to the typical style using --fix or --fix-inplace.

./patches/mm-swap-add-swap_cluster_list.patch has style problems, please review.

NOTE: If any of the errors are false positives, please report
      them to the maintainer, see CHECKPATCH in MAINTAINERS.

Please run checkpatch prior to sending patches

Cc: Huang Ying <ying.huang@intel.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>

WARNING: Missing a blank line after declarations
torvalds#91: FILE: mm/swapfile.c:285:
+		unsigned int tail = cluster_next(&list->tail);
+		cluster_set_next(&ci[tail], idx);

WARNING: line over 80 characters
torvalds#261: FILE: mm/swapfile.c:2347:
+			cluster_list_add_tail(&p->free_clusters, cluster_info, idx);

total: 0 errors, 2 warnings, 222 lines checked

NOTE: For some of the reported defects, checkpatch may be able to
      mechanically convert to the typical style using --fix or --fix-inplace.

./patches/mm-swap-add-swap_cluster_list.patch has style problems, please review.

NOTE: If any of the errors are false positives, please report
      them to the maintainer, see CHECKPATCH in MAINTAINERS.

Please run checkpatch prior to sending patches

Cc: Huang Ying <ying.huang@intel.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>

WARNING: Missing a blank line after declarations
torvalds#91: FILE: mm/swapfile.c:285:
+		unsigned int tail = cluster_next(&list->tail);
+		cluster_set_next(&ci[tail], idx);

WARNING: line over 80 characters
torvalds#261: FILE: mm/swapfile.c:2347:
+			cluster_list_add_tail(&p->free_clusters, cluster_info, idx);

total: 0 errors, 2 warnings, 222 lines checked

NOTE: For some of the reported defects, checkpatch may be able to
      mechanically convert to the typical style using --fix or --fix-inplace.

./patches/mm-swap-add-swap_cluster_list.patch has style problems, please review.

NOTE: If any of the errors are false positives, please report
      them to the maintainer, see CHECKPATCH in MAINTAINERS.

Please run checkpatch prior to sending patches

Cc: Huang Ying <ying.huang@intel.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>

WARNING: Missing a blank line after declarations
torvalds#91: FILE: mm/swapfile.c:285:
+		unsigned int tail = cluster_next(&list->tail);
+		cluster_set_next(&ci[tail], idx);

WARNING: line over 80 characters
torvalds#261: FILE: mm/swapfile.c:2347:
+			cluster_list_add_tail(&p->free_clusters, cluster_info, idx);

total: 0 errors, 2 warnings, 222 lines checked

NOTE: For some of the reported defects, checkpatch may be able to
      mechanically convert to the typical style using --fix or --fix-inplace.

./patches/mm-swap-add-swap_cluster_list.patch has style problems, please review.

NOTE: If any of the errors are false positives, please report
      them to the maintainer, see CHECKPATCH in MAINTAINERS.

Please run checkpatch prior to sending patches

Cc: Huang Ying <ying.huang@intel.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>

WARNING: Missing a blank line after declarations
torvalds#91: FILE: mm/swapfile.c:285:
+		unsigned int tail = cluster_next(&list->tail);
+		cluster_set_next(&ci[tail], idx);

WARNING: line over 80 characters
torvalds#261: FILE: mm/swapfile.c:2347:
+			cluster_list_add_tail(&p->free_clusters, cluster_info, idx);

total: 0 errors, 2 warnings, 222 lines checked

NOTE: For some of the reported defects, checkpatch may be able to
      mechanically convert to the typical style using --fix or --fix-inplace.

./patches/mm-swap-add-swap_cluster_list.patch has style problems, please review.

NOTE: If any of the errors are false positives, please report
      them to the maintainer, see CHECKPATCH in MAINTAINERS.

Please run checkpatch prior to sending patches

Cc: Huang Ying <ying.huang@intel.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>

WARNING: Missing a blank line after declarations
torvalds#91: FILE: mm/swapfile.c:285:
+		unsigned int tail = cluster_next(&list->tail);
+		cluster_set_next(&ci[tail], idx);

WARNING: line over 80 characters
torvalds#261: FILE: mm/swapfile.c:2347:
+			cluster_list_add_tail(&p->free_clusters, cluster_info, idx);

total: 0 errors, 2 warnings, 222 lines checked

NOTE: For some of the reported defects, checkpatch may be able to
      mechanically convert to the typical style using --fix or --fix-inplace.

./patches/mm-swap-add-swap_cluster_list.patch has style problems, please review.

NOTE: If any of the errors are false positives, please report
      them to the maintainer, see CHECKPATCH in MAINTAINERS.

Please run checkpatch prior to sending patches

Cc: Huang Ying <ying.huang@intel.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>

WARNING: Missing a blank line after declarations
torvalds#91: FILE: mm/swapfile.c:285:
+		unsigned int tail = cluster_next(&list->tail);
+		cluster_set_next(&ci[tail], idx);

WARNING: line over 80 characters
torvalds#261: FILE: mm/swapfile.c:2347:
+			cluster_list_add_tail(&p->free_clusters, cluster_info, idx);

total: 0 errors, 2 warnings, 222 lines checked

NOTE: For some of the reported defects, checkpatch may be able to
      mechanically convert to the typical style using --fix or --fix-inplace.

./patches/mm-swap-add-swap_cluster_list.patch has style problems, please review.

NOTE: If any of the errors are false positives, please report
      them to the maintainer, see CHECKPATCH in MAINTAINERS.

Please run checkpatch prior to sending patches

Cc: Huang Ying <ying.huang@intel.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>

lkl: Change tls key to struct lkl_tls_key

WARNING: Avoid crashing the kernel - try using WARN_ON & recovery code rather than BUG() or BUG_ON()
torvalds#46: FILE: drivers/gpu/drm/drm_gem.c:494:
+		BUG_ON(mapping_gfp_constraint(mapping, __GFP_DMA32) &&

WARNING: line over 80 characters
torvalds#73: FILE: fs/btrfs/compression.c:485:
+		page = __page_cache_alloc(mapping_gfp_constraint(mapping, ~__GFP_FS));

WARNING: Avoid crashing the kernel - try using WARN_ON & recovery code rather than BUG() or BUG_ON()
torvalds#183: FILE: fs/logfs/segment.c:60:
+	BUG_ON(mapping_gfp_constraint(mapping, __GFP_FS));

WARNING: line over 80 characters
torvalds#228: FILE: fs/nilfs2/inode.c:359:
+			     mapping_gfp_constraint(inode->i_mapping, ~__GFP_FS));

WARNING: line over 80 characters
torvalds#237: FILE: fs/nilfs2/inode.c:525:
+			     mapping_gfp_constraint(inode->i_mapping, ~__GFP_FS));

WARNING: line over 80 characters
torvalds#249: FILE: fs/ntfs/file.c:529:
+					mapping_gfp_constraint(mapping, GFP_KERNEL));

WARNING: line over 80 characters
torvalds#261: FILE: fs/splice.c:363:
+					mapping_gfp_constraint(mapping, GFP_KERNEL));

WARNING: line over 80 characters
torvalds#290: FILE: mm/filemap.c:1725:
+					mapping_gfp_constraint(mapping, GFP_KERNEL));

total: 0 errors, 8 warnings, 205 lines checked

./patches/mm-fs-introduce-mapping_gfp_constraint.patch has style problems, please review.

NOTE: If any of the errors are false positives, please report
      them to the maintainer, see CHECKPATCH in MAINTAINERS.

Please run checkpatch prior to sending patches

Cc: Michal Hocko <mhocko@suse.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>

Users can provide garbage while calling to ucma_join_ip_multicast(),
it will indirectly cause to rdma_addr_size() return 0, making the
call to ucma_process_join(), which had the right checks, but it is
better to check the input as early as possible.

The following crash from syzkaller revealed it.

kernel BUG at lib/string.c:1052!
invalid opcode: 0000 [#1] SMP KASAN Dumping ftrace buffer:
   (ftrace buffer empty)
Modules linked in:
CPU: 0 PID: 4113 Comm: syz-executor0 Not tainted 4.16.0-rc5+ torvalds#261
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
RIP: 0010:fortify_panic+0x13/0x20 lib/string.c:1051
RSP: 0018:ffff8801ca81f8f0 EFLAGS: 00010286
RAX: 0000000000000022 RBX: 1ffff10039503f23 RCX: 0000000000000000
RDX: 0000000000000022 RSI: 1ffff10039503ed3 RDI: ffffed0039503f12
RBP: ffff8801ca81f8f0 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000006 R11: 0000000000000000 R12: ffff8801ca81f998
R13: ffff8801ca81f938 R14: ffff8801ca81fa58 R15: 000000000000fa00
FS:  0000000000000000(0000) GS:ffff8801db200000(0063) knlGS:000000000a12a900
CS:  0010 DS: 002b ES: 002b CR0: 0000000080050033
CR2: 0000000008138024 CR3: 00000001cbb58004 CR4: 00000000001606f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 memcpy include/linux/string.h:344 [inline]
 ucma_join_ip_multicast+0x36b/0x3b0 drivers/infiniband/core/ucma.c:1421
 ucma_write+0x2d6/0x3d0 drivers/infiniband/core/ucma.c:1633
 __vfs_write+0xef/0x970 fs/read_write.c:480
 vfs_write+0x189/0x510 fs/read_write.c:544
 SYSC_write fs/read_write.c:589 [inline]
 SyS_write+0xef/0x220 fs/read_write.c:581
 do_syscall_32_irqs_on arch/x86/entry/common.c:330 [inline]
 do_fast_syscall_32+0x3ec/0xf9f arch/x86/entry/common.c:392
 entry_SYSENTER_compat+0x70/0x7f arch/x86/entry/entry_64_compat.S:139
RIP: 0023:0xf7f9ec99
RSP: 002b:00000000ff8172cc EFLAGS: 00000282 ORIG_RAX: 0000000000000004
RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 0000000020000100
RDX: 0000000000000063 RSI: 0000000000000000 RDI: 0000000000000000
RBP: 0000000000000000 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000000 R12: 0000000000000000
R13: 0000000000000000 R14: 0000000000000000 R15: 0000000000000000
Code: 08 5b 41 5c 41 5d 41 5e 41 5f 5d c3 0f 0b 48 89 df e8 42 2c e3 fb eb de
55 48 89 fe 48 c7 c7 80 75 98 86 48 89 e5 e8 85 95 94 fb <0f> 0b 90 90 90 90
90 90 90 90 90 90 90 55 48 89 e5 41 57 41 56
RIP: fortify_panic+0x13/0x20 lib/string.c:1051 RSP: ffff8801ca81f8f0

Fixes: 5bc2b7b ("RDMA/ucma: Allow user space to specify AF_IB when joining multicast")
Reported-by: <syzbot+2287ac532caa81900a4e@syzkaller.appspotmail.com>
Signed-off-by: Leon Romanovsky <leonro@mellanox.com>

Add a new test case to query on an empty bpf_mprog and pass the revision
directly into expected_revision for attachment to assert that this does
succeed.

  ./test_progs -t tc_opts
  [    1.406778] tsc: Refined TSC clocksource calibration: 3407.990 MHz
  [    1.408863] clocksource: tsc: mask: 0xffffffffffffffff max_cycles: 0x311fcaf6eb0, max_idle_ns: 440795321766 ns
  [    1.412419] clocksource: Switched to clocksource tsc
  [    1.428671] bpf_testmod: loading out-of-tree module taints kernel.
  [    1.430260] bpf_testmod: module verification failed: signature and/or required key missing - tainting kernel
  torvalds#252     tc_opts_after:OK
  torvalds#253     tc_opts_append:OK
  torvalds#254     tc_opts_basic:OK
  torvalds#255     tc_opts_before:OK
  torvalds#256     tc_opts_chain_classic:OK
  torvalds#257     tc_opts_chain_mixed:OK
  torvalds#258     tc_opts_delete_empty:OK
  torvalds#259     tc_opts_demixed:OK
  torvalds#260     tc_opts_detach:OK
  torvalds#261     tc_opts_detach_after:OK
  torvalds#262     tc_opts_detach_before:OK
  torvalds#263     tc_opts_dev_cleanup:OK
  torvalds#264     tc_opts_invalid:OK
  torvalds#265     tc_opts_max:OK
  torvalds#266     tc_opts_mixed:OK
  torvalds#267     tc_opts_prepend:OK
  torvalds#268     tc_opts_query:OK
  torvalds#269     tc_opts_query_attach:OK     <--- (new test)
  torvalds#270     tc_opts_replace:OK
  torvalds#271     tc_opts_revision:OK
  Summary: 20/0 PASSED, 0 SKIPPED, 0 FAILED

Signed-off-by: Daniel Borkmann <daniel@iogearbox.net>
Link: https://lore.kernel.org/r/20231006220655.1653-6-daniel@iogearbox.net
Signed-off-by: Martin KaFai Lau <martin.lau@kernel.org>

Add several new test cases which assert corner cases on the mprog query
mechanism, for example, around passing in a too small or a larger array
than the current count.

  ./test_progs -t tc_opts
  torvalds#252     tc_opts_after:OK
  torvalds#253     tc_opts_append:OK
  torvalds#254     tc_opts_basic:OK
  torvalds#255     tc_opts_before:OK
  torvalds#256     tc_opts_chain_classic:OK
  torvalds#257     tc_opts_chain_mixed:OK
  torvalds#258     tc_opts_delete_empty:OK
  torvalds#259     tc_opts_demixed:OK
  torvalds#260     tc_opts_detach:OK
  torvalds#261     tc_opts_detach_after:OK
  torvalds#262     tc_opts_detach_before:OK
  torvalds#263     tc_opts_dev_cleanup:OK
  torvalds#264     tc_opts_invalid:OK
  torvalds#265     tc_opts_max:OK
  torvalds#266     tc_opts_mixed:OK
  torvalds#267     tc_opts_prepend:OK
  torvalds#268     tc_opts_query:OK
  torvalds#269     tc_opts_query_attach:OK
  torvalds#270     tc_opts_replace:OK
  torvalds#271     tc_opts_revision:OK
  Summary: 20/0 PASSED, 0 SKIPPED, 0 FAILED

Signed-off-by: Daniel Borkmann <daniel@iogearbox.net>

Add several new test cases which assert corner cases on the mprog query
mechanism, for example, around passing in a too small or a larger array
than the current count.

  ./test_progs -t tc_opts
  torvalds#252     tc_opts_after:OK
  torvalds#253     tc_opts_append:OK
  torvalds#254     tc_opts_basic:OK
  torvalds#255     tc_opts_before:OK
  torvalds#256     tc_opts_chain_classic:OK
  torvalds#257     tc_opts_chain_mixed:OK
  torvalds#258     tc_opts_delete_empty:OK
  torvalds#259     tc_opts_demixed:OK
  torvalds#260     tc_opts_detach:OK
  torvalds#261     tc_opts_detach_after:OK
  torvalds#262     tc_opts_detach_before:OK
  torvalds#263     tc_opts_dev_cleanup:OK
  torvalds#264     tc_opts_invalid:OK
  torvalds#265     tc_opts_max:OK
  torvalds#266     tc_opts_mixed:OK
  torvalds#267     tc_opts_prepend:OK
  torvalds#268     tc_opts_query:OK
  torvalds#269     tc_opts_query_attach:OK
  torvalds#270     tc_opts_replace:OK
  torvalds#271     tc_opts_revision:OK
  Summary: 20/0 PASSED, 0 SKIPPED, 0 FAILED

Signed-off-by: Daniel Borkmann <daniel@iogearbox.net>
Signed-off-by: Andrii Nakryiko <andrii@kernel.org>
Reviewed-by: Alan Maguire <alan.maguire@oracle.com>
Link: https://lore.kernel.org/bpf/20231017081728.24769-1-daniel@iogearbox.net

Add a bigger batch of test coverage to assert correct operation of
netkit devices and their BPF program management:

  # ./test_progs -t tc_netkit
  [...]
  [    1.166267] bpf_testmod: loading out-of-tree module taints kernel.
  [    1.166831] bpf_testmod: module verification failed: signature and/or required key missing - tainting kernel
  [    1.270957] tsc: Refined TSC clocksource calibration: 3407.988 MHz
  [    1.272579] clocksource: tsc: mask: 0xffffffffffffffff max_cycles: 0x311fc932722, max_idle_ns: 440795381586 ns
  [    1.275336] clocksource: Switched to clocksource tsc
  torvalds#257     tc_netkit_basic:OK
  torvalds#258     tc_netkit_device:OK
  torvalds#259     tc_netkit_multi_links:OK
  torvalds#260     tc_netkit_multi_opts:OK
  torvalds#261     tc_netkit_neigh_links:OK
  Summary: 5/0 PASSED, 0 SKIPPED, 0 FAILED
  [...]

Signed-off-by: Daniel Borkmann <daniel@iogearbox.net>

Add a bigger batch of test coverage to assert correct operation of
netkit devices and their BPF program management:

  # ./test_progs -t tc_netkit
  [...]
  [    1.166267] bpf_testmod: loading out-of-tree module taints kernel.
  [    1.166831] bpf_testmod: module verification failed: signature and/or required key missing - tainting kernel
  [    1.270957] tsc: Refined TSC clocksource calibration: 3407.988 MHz
  [    1.272579] clocksource: tsc: mask: 0xffffffffffffffff max_cycles: 0x311fc932722, max_idle_ns: 440795381586 ns
  [    1.275336] clocksource: Switched to clocksource tsc
  torvalds#257     tc_netkit_basic:OK
  torvalds#258     tc_netkit_device:OK
  torvalds#259     tc_netkit_multi_links:OK
  torvalds#260     tc_netkit_multi_opts:OK
  torvalds#261     tc_netkit_neigh_links:OK
  Summary: 5/0 PASSED, 0 SKIPPED, 0 FAILED
  [...]

Signed-off-by: Daniel Borkmann <daniel@iogearbox.net>

Add a bigger batch of test coverage to assert correct operation of
netkit devices and their BPF program management:

  # ./test_progs -t tc_netkit
  [...]
  [    1.166267] bpf_testmod: loading out-of-tree module taints kernel.
  [    1.166831] bpf_testmod: module verification failed: signature and/or required key missing - tainting kernel
  [    1.270957] tsc: Refined TSC clocksource calibration: 3407.988 MHz
  [    1.272579] clocksource: tsc: mask: 0xffffffffffffffff max_cycles: 0x311fc932722, max_idle_ns: 440795381586 ns
  [    1.275336] clocksource: Switched to clocksource tsc
  torvalds#257     tc_netkit_basic:OK
  torvalds#258     tc_netkit_device:OK
  torvalds#259     tc_netkit_multi_links:OK
  torvalds#260     tc_netkit_multi_opts:OK
  torvalds#261     tc_netkit_neigh_links:OK
  Summary: 5/0 PASSED, 0 SKIPPED, 0 FAILED
  [...]

Signed-off-by: Daniel Borkmann <daniel@iogearbox.net>

Add a bigger batch of test coverage to assert correct operation of
netkit devices and their BPF program management:

  # ./test_progs -t tc_netkit
  [...]
  [    1.166267] bpf_testmod: loading out-of-tree module taints kernel.
  [    1.166831] bpf_testmod: module verification failed: signature and/or required key missing - tainting kernel
  [    1.270957] tsc: Refined TSC clocksource calibration: 3407.988 MHz
  [    1.272579] clocksource: tsc: mask: 0xffffffffffffffff max_cycles: 0x311fc932722, max_idle_ns: 440795381586 ns
  [    1.275336] clocksource: Switched to clocksource tsc
  torvalds#257     tc_netkit_basic:OK
  torvalds#258     tc_netkit_device:OK
  torvalds#259     tc_netkit_multi_links:OK
  torvalds#260     tc_netkit_multi_opts:OK
  torvalds#261     tc_netkit_neigh_links:OK
  Summary: 5/0 PASSED, 0 SKIPPED, 0 FAILED
  [...]

Signed-off-by: Daniel Borkmann <daniel@iogearbox.net>

Add a bigger batch of test coverage to assert correct operation of
netkit devices and their BPF program management:

  # ./test_progs -t tc_netkit
  [...]
  [    1.166267] bpf_testmod: loading out-of-tree module taints kernel.
  [    1.166831] bpf_testmod: module verification failed: signature and/or required key missing - tainting kernel
  [    1.270957] tsc: Refined TSC clocksource calibration: 3407.988 MHz
  [    1.272579] clocksource: tsc: mask: 0xffffffffffffffff max_cycles: 0x311fc932722, max_idle_ns: 440795381586 ns
  [    1.275336] clocksource: Switched to clocksource tsc
  torvalds#257     tc_netkit_basic:OK
  torvalds#258     tc_netkit_device:OK
  torvalds#259     tc_netkit_multi_links:OK
  torvalds#260     tc_netkit_multi_opts:OK
  torvalds#261     tc_netkit_neigh_links:OK
  Summary: 5/0 PASSED, 0 SKIPPED, 0 FAILED
  [...]

Signed-off-by: Daniel Borkmann <daniel@iogearbox.net>

Add a bigger batch of test coverage to assert correct operation of
netkit devices and their BPF program management:

  # ./test_progs -t tc_netkit
  [...]
  [    1.166267] bpf_testmod: loading out-of-tree module taints kernel.
  [    1.166831] bpf_testmod: module verification failed: signature and/or required key missing - tainting kernel
  [    1.270957] tsc: Refined TSC clocksource calibration: 3407.988 MHz
  [    1.272579] clocksource: tsc: mask: 0xffffffffffffffff max_cycles: 0x311fc932722, max_idle_ns: 440795381586 ns
  [    1.275336] clocksource: Switched to clocksource tsc
  torvalds#257     tc_netkit_basic:OK
  torvalds#258     tc_netkit_device:OK
  torvalds#259     tc_netkit_multi_links:OK
  torvalds#260     tc_netkit_multi_opts:OK
  torvalds#261     tc_netkit_neigh_links:OK
  Summary: 5/0 PASSED, 0 SKIPPED, 0 FAILED
  [...]

Signed-off-by: Daniel Borkmann <daniel@iogearbox.net>

Add a bigger batch of test coverage to assert correct operation of
netkit devices and their BPF program management:

  # ./test_progs -t tc_netkit
  [...]
  [    1.166267] bpf_testmod: loading out-of-tree module taints kernel.
  [    1.166831] bpf_testmod: module verification failed: signature and/or required key missing - tainting kernel
  [    1.270957] tsc: Refined TSC clocksource calibration: 3407.988 MHz
  [    1.272579] clocksource: tsc: mask: 0xffffffffffffffff max_cycles: 0x311fc932722, max_idle_ns: 440795381586 ns
  [    1.275336] clocksource: Switched to clocksource tsc
  torvalds#257     tc_netkit_basic:OK
  torvalds#258     tc_netkit_device:OK
  torvalds#259     tc_netkit_multi_links:OK
  torvalds#260     tc_netkit_multi_opts:OK
  torvalds#261     tc_netkit_neigh_links:OK
  Summary: 5/0 PASSED, 0 SKIPPED, 0 FAILED
  [...]

Signed-off-by: Daniel Borkmann <daniel@iogearbox.net>

Add a bigger batch of test coverage to assert correct operation of
netkit devices and their BPF program management:

  # ./test_progs -t tc_netkit
  [...]
  [    1.166267] bpf_testmod: loading out-of-tree module taints kernel.
  [    1.166831] bpf_testmod: module verification failed: signature and/or required key missing - tainting kernel
  [    1.270957] tsc: Refined TSC clocksource calibration: 3407.988 MHz
  [    1.272579] clocksource: tsc: mask: 0xffffffffffffffff max_cycles: 0x311fc932722, max_idle_ns: 440795381586 ns
  [    1.275336] clocksource: Switched to clocksource tsc
  torvalds#257     tc_netkit_basic:OK
  torvalds#258     tc_netkit_device:OK
  torvalds#259     tc_netkit_multi_links:OK
  torvalds#260     tc_netkit_multi_opts:OK
  torvalds#261     tc_netkit_neigh_links:OK
  Summary: 5/0 PASSED, 0 SKIPPED, 0 FAILED
  [...]

Signed-off-by: Daniel Borkmann <daniel@iogearbox.net>

Add a bigger batch of test coverage to assert correct operation of
netkit devices and their BPF program management:

  # ./test_progs -t tc_netkit
  [...]
  [    1.166267] bpf_testmod: loading out-of-tree module taints kernel.
  [    1.166831] bpf_testmod: module verification failed: signature and/or required key missing - tainting kernel
  [    1.270957] tsc: Refined TSC clocksource calibration: 3407.988 MHz
  [    1.272579] clocksource: tsc: mask: 0xffffffffffffffff max_cycles: 0x311fc932722, max_idle_ns: 440795381586 ns
  [    1.275336] clocksource: Switched to clocksource tsc
  torvalds#257     tc_netkit_basic:OK
  torvalds#258     tc_netkit_device:OK
  torvalds#259     tc_netkit_multi_links:OK
  torvalds#260     tc_netkit_multi_opts:OK
  torvalds#261     tc_netkit_neigh_links:OK
  Summary: 5/0 PASSED, 0 SKIPPED, 0 FAILED
  [...]

Signed-off-by: Daniel Borkmann <daniel@iogearbox.net>

Add a bigger batch of test coverage to assert correct operation of
netkit devices and their BPF program management:

  # ./test_progs -t tc_netkit
  [...]
  [    1.166267] bpf_testmod: loading out-of-tree module taints kernel.
  [    1.166831] bpf_testmod: module verification failed: signature and/or required key missing - tainting kernel
  [    1.270957] tsc: Refined TSC clocksource calibration: 3407.988 MHz
  [    1.272579] clocksource: tsc: mask: 0xffffffffffffffff max_cycles: 0x311fc932722, max_idle_ns: 440795381586 ns
  [    1.275336] clocksource: Switched to clocksource tsc
  torvalds#257     tc_netkit_basic:OK
  torvalds#258     tc_netkit_device:OK
  torvalds#259     tc_netkit_multi_links:OK
  torvalds#260     tc_netkit_multi_opts:OK
  torvalds#261     tc_netkit_neigh_links:OK
  Summary: 5/0 PASSED, 0 SKIPPED, 0 FAILED
  [...]

Signed-off-by: Daniel Borkmann <daniel@iogearbox.net>

Add a bigger batch of test coverage to assert correct operation of
netkit devices and their BPF program management:

  # ./test_progs -t tc_netkit
  [...]
  [    1.166267] bpf_testmod: loading out-of-tree module taints kernel.
  [    1.166831] bpf_testmod: module verification failed: signature and/or required key missing - tainting kernel
  [    1.270957] tsc: Refined TSC clocksource calibration: 3407.988 MHz
  [    1.272579] clocksource: tsc: mask: 0xffffffffffffffff max_cycles: 0x311fc932722, max_idle_ns: 440795381586 ns
  [    1.275336] clocksource: Switched to clocksource tsc
  torvalds#257     tc_netkit_basic:OK
  torvalds#258     tc_netkit_device:OK
  torvalds#259     tc_netkit_multi_links:OK
  torvalds#260     tc_netkit_multi_opts:OK
  torvalds#261     tc_netkit_neigh_links:OK
  Summary: 5/0 PASSED, 0 SKIPPED, 0 FAILED
  [...]

Signed-off-by: Daniel Borkmann <daniel@iogearbox.net>

Add a bigger batch of test coverage to assert correct operation of
netkit devices and their BPF program management:

  # ./test_progs -t tc_netkit
  [...]
  [    1.166267] bpf_testmod: loading out-of-tree module taints kernel.
  [    1.166831] bpf_testmod: module verification failed: signature and/or required key missing - tainting kernel
  [    1.270957] tsc: Refined TSC clocksource calibration: 3407.988 MHz
  [    1.272579] clocksource: tsc: mask: 0xffffffffffffffff max_cycles: 0x311fc932722, max_idle_ns: 440795381586 ns
  [    1.275336] clocksource: Switched to clocksource tsc
  torvalds#257     tc_netkit_basic:OK
  torvalds#258     tc_netkit_device:OK
  torvalds#259     tc_netkit_multi_links:OK
  torvalds#260     tc_netkit_multi_opts:OK
  torvalds#261     tc_netkit_neigh_links:OK
  Summary: 5/0 PASSED, 0 SKIPPED, 0 FAILED
  [...]

Signed-off-by: Daniel Borkmann <daniel@iogearbox.net>

Add a bigger batch of test coverage to assert correct operation of
netkit devices and their BPF program management:

  # ./test_progs -t tc_netkit
  [...]
  [    1.166267] bpf_testmod: loading out-of-tree module taints kernel.
  [    1.166831] bpf_testmod: module verification failed: signature and/or required key missing - tainting kernel
  [    1.270957] tsc: Refined TSC clocksource calibration: 3407.988 MHz
  [    1.272579] clocksource: tsc: mask: 0xffffffffffffffff max_cycles: 0x311fc932722, max_idle_ns: 440795381586 ns
  [    1.275336] clocksource: Switched to clocksource tsc
  torvalds#257     tc_netkit_basic:OK
  torvalds#258     tc_netkit_device:OK
  torvalds#259     tc_netkit_multi_links:OK
  torvalds#260     tc_netkit_multi_opts:OK
  torvalds#261     tc_netkit_neigh_links:OK
  Summary: 5/0 PASSED, 0 SKIPPED, 0 FAILED
  [...]

Signed-off-by: Daniel Borkmann <daniel@iogearbox.net>

Add a bigger batch of test coverage to assert correct operation of
netkit devices and their BPF program management:

  # ./test_progs -t tc_netkit
  [...]
  [    1.166267] bpf_testmod: loading out-of-tree module taints kernel.
  [    1.166831] bpf_testmod: module verification failed: signature and/or required key missing - tainting kernel
  [    1.270957] tsc: Refined TSC clocksource calibration: 3407.988 MHz
  [    1.272579] clocksource: tsc: mask: 0xffffffffffffffff max_cycles: 0x311fc932722, max_idle_ns: 440795381586 ns
  [    1.275336] clocksource: Switched to clocksource tsc
  torvalds#257     tc_netkit_basic:OK
  torvalds#258     tc_netkit_device:OK
  torvalds#259     tc_netkit_multi_links:OK
  torvalds#260     tc_netkit_multi_opts:OK
  torvalds#261     tc_netkit_neigh_links:OK
  Summary: 5/0 PASSED, 0 SKIPPED, 0 FAILED
  [...]

Signed-off-by: Daniel Borkmann <daniel@iogearbox.net>

Add a bigger batch of test coverage to assert correct operation of
netkit devices and their BPF program management:

  # ./test_progs -t tc_netkit
  [...]
  [    1.166267] bpf_testmod: loading out-of-tree module taints kernel.
  [    1.166831] bpf_testmod: module verification failed: signature and/or required key missing - tainting kernel
  [    1.270957] tsc: Refined TSC clocksource calibration: 3407.988 MHz
  [    1.272579] clocksource: tsc: mask: 0xffffffffffffffff max_cycles: 0x311fc932722, max_idle_ns: 440795381586 ns
  [    1.275336] clocksource: Switched to clocksource tsc
  torvalds#257     tc_netkit_basic:OK
  torvalds#258     tc_netkit_device:OK
  torvalds#259     tc_netkit_multi_links:OK
  torvalds#260     tc_netkit_multi_opts:OK
  torvalds#261     tc_netkit_neigh_links:OK
  Summary: 5/0 PASSED, 0 SKIPPED, 0 FAILED
  [...]

Signed-off-by: Daniel Borkmann <daniel@iogearbox.net>

Add a bigger batch of test coverage to assert correct operation of
netkit devices and their BPF program management:

  # ./test_progs -t tc_netkit
  [...]
  [    1.166267] bpf_testmod: loading out-of-tree module taints kernel.
  [    1.166831] bpf_testmod: module verification failed: signature and/or required key missing - tainting kernel
  [    1.270957] tsc: Refined TSC clocksource calibration: 3407.988 MHz
  [    1.272579] clocksource: tsc: mask: 0xffffffffffffffff max_cycles: 0x311fc932722, max_idle_ns: 440795381586 ns
  [    1.275336] clocksource: Switched to clocksource tsc
  torvalds#257     tc_netkit_basic:OK
  torvalds#258     tc_netkit_device:OK
  torvalds#259     tc_netkit_multi_links:OK
  torvalds#260     tc_netkit_multi_opts:OK
  torvalds#261     tc_netkit_neigh_links:OK
  Summary: 5/0 PASSED, 0 SKIPPED, 0 FAILED
  [...]

Signed-off-by: Daniel Borkmann <daniel@iogearbox.net>

Add a bigger batch of test coverage to assert correct operation of
netkit devices and their BPF program management:

  # ./test_progs -t tc_netkit
  [...]
  [    1.166267] bpf_testmod: loading out-of-tree module taints kernel.
  [    1.166831] bpf_testmod: module verification failed: signature and/or required key missing - tainting kernel
  [    1.270957] tsc: Refined TSC clocksource calibration: 3407.988 MHz
  [    1.272579] clocksource: tsc: mask: 0xffffffffffffffff max_cycles: 0x311fc932722, max_idle_ns: 440795381586 ns
  [    1.275336] clocksource: Switched to clocksource tsc
  torvalds#257     tc_netkit_basic:OK
  torvalds#258     tc_netkit_device:OK
  torvalds#259     tc_netkit_multi_links:OK
  torvalds#260     tc_netkit_multi_opts:OK
  torvalds#261     tc_netkit_neigh_links:OK
  Summary: 5/0 PASSED, 0 SKIPPED, 0 FAILED
  [...]

Signed-off-by: Daniel Borkmann <daniel@iogearbox.net>

Add a bigger batch of test coverage to assert correct operation of
netkit devices and their BPF program management:

  # ./test_progs -t tc_netkit
  [...]
  [    1.166267] bpf_testmod: loading out-of-tree module taints kernel.
  [    1.166831] bpf_testmod: module verification failed: signature and/or required key missing - tainting kernel
  [    1.270957] tsc: Refined TSC clocksource calibration: 3407.988 MHz
  [    1.272579] clocksource: tsc: mask: 0xffffffffffffffff max_cycles: 0x311fc932722, max_idle_ns: 440795381586 ns
  [    1.275336] clocksource: Switched to clocksource tsc
  torvalds#257     tc_netkit_basic:OK
  torvalds#258     tc_netkit_device:OK
  torvalds#259     tc_netkit_multi_links:OK
  torvalds#260     tc_netkit_multi_opts:OK
  torvalds#261     tc_netkit_neigh_links:OK
  Summary: 5/0 PASSED, 0 SKIPPED, 0 FAILED
  [...]

Signed-off-by: Daniel Borkmann <daniel@iogearbox.net>

Add a bigger batch of test coverage to assert correct operation of
netkit devices and their BPF program management:

  # ./test_progs -t tc_netkit
  [...]
  [    1.166267] bpf_testmod: loading out-of-tree module taints kernel.
  [    1.166831] bpf_testmod: module verification failed: signature and/or required key missing - tainting kernel
  [    1.270957] tsc: Refined TSC clocksource calibration: 3407.988 MHz
  [    1.272579] clocksource: tsc: mask: 0xffffffffffffffff max_cycles: 0x311fc932722, max_idle_ns: 440795381586 ns
  [    1.275336] clocksource: Switched to clocksource tsc
  torvalds#257     tc_netkit_basic:OK
  torvalds#258     tc_netkit_device:OK
  torvalds#259     tc_netkit_multi_links:OK
  torvalds#260     tc_netkit_multi_opts:OK
  torvalds#261     tc_netkit_neigh_links:OK
  Summary: 5/0 PASSED, 0 SKIPPED, 0 FAILED
  [...]

Signed-off-by: Daniel Borkmann <daniel@iogearbox.net>

Add a bigger batch of test coverage to assert correct operation of
netkit devices and their BPF program management:

  # ./test_progs -t tc_netkit
  [...]
  [    1.166267] bpf_testmod: loading out-of-tree module taints kernel.
  [    1.166831] bpf_testmod: module verification failed: signature and/or required key missing - tainting kernel
  [    1.270957] tsc: Refined TSC clocksource calibration: 3407.988 MHz
  [    1.272579] clocksource: tsc: mask: 0xffffffffffffffff max_cycles: 0x311fc932722, max_idle_ns: 440795381586 ns
  [    1.275336] clocksource: Switched to clocksource tsc
  torvalds#257     tc_netkit_basic:OK
  torvalds#258     tc_netkit_device:OK
  torvalds#259     tc_netkit_multi_links:OK
  torvalds#260     tc_netkit_multi_opts:OK
  torvalds#261     tc_netkit_neigh_links:OK
  Summary: 5/0 PASSED, 0 SKIPPED, 0 FAILED
  [...]

Signed-off-by: Daniel Borkmann <daniel@iogearbox.net>

Add a bigger batch of test coverage to assert correct operation of
netkit devices and their BPF program management:

  # ./test_progs -t tc_netkit
  [...]
  [    1.166267] bpf_testmod: loading out-of-tree module taints kernel.
  [    1.166831] bpf_testmod: module verification failed: signature and/or required key missing - tainting kernel
  [    1.270957] tsc: Refined TSC clocksource calibration: 3407.988 MHz
  [    1.272579] clocksource: tsc: mask: 0xffffffffffffffff max_cycles: 0x311fc932722, max_idle_ns: 440795381586 ns
  [    1.275336] clocksource: Switched to clocksource tsc
  torvalds#257     tc_netkit_basic:OK
  torvalds#258     tc_netkit_device:OK
  torvalds#259     tc_netkit_multi_links:OK
  torvalds#260     tc_netkit_multi_opts:OK
  torvalds#261     tc_netkit_neigh_links:OK
  Summary: 5/0 PASSED, 0 SKIPPED, 0 FAILED
  [...]

Signed-off-by: Daniel Borkmann <daniel@iogearbox.net>

Add a bigger batch of test coverage to assert correct operation of
netkit devices and their BPF program management:

  # ./test_progs -t tc_netkit
  [...]
  [    1.166267] bpf_testmod: loading out-of-tree module taints kernel.
  [    1.166831] bpf_testmod: module verification failed: signature and/or required key missing - tainting kernel
  [    1.270957] tsc: Refined TSC clocksource calibration: 3407.988 MHz
  [    1.272579] clocksource: tsc: mask: 0xffffffffffffffff max_cycles: 0x311fc932722, max_idle_ns: 440795381586 ns
  [    1.275336] clocksource: Switched to clocksource tsc
  torvalds#257     tc_netkit_basic:OK
  torvalds#258     tc_netkit_device:OK
  torvalds#259     tc_netkit_multi_links:OK
  torvalds#260     tc_netkit_multi_opts:OK
  torvalds#261     tc_netkit_neigh_links:OK
  Summary: 5/0 PASSED, 0 SKIPPED, 0 FAILED
  [...]

Signed-off-by: Daniel Borkmann <daniel@iogearbox.net>

Add a bigger batch of test coverage to assert correct operation of
netkit devices and their BPF program management:

  # ./test_progs -t tc_netkit
  [...]
  [    1.166267] bpf_testmod: loading out-of-tree module taints kernel.
  [    1.166831] bpf_testmod: module verification failed: signature and/or required key missing - tainting kernel
  [    1.270957] tsc: Refined TSC clocksource calibration: 3407.988 MHz
  [    1.272579] clocksource: tsc: mask: 0xffffffffffffffff max_cycles: 0x311fc932722, max_idle_ns: 440795381586 ns
  [    1.275336] clocksource: Switched to clocksource tsc
  torvalds#257     tc_netkit_basic:OK
  torvalds#258     tc_netkit_device:OK
  torvalds#259     tc_netkit_multi_links:OK
  torvalds#260     tc_netkit_multi_opts:OK
  torvalds#261     tc_netkit_neigh_links:OK
  Summary: 5/0 PASSED, 0 SKIPPED, 0 FAILED
  [...]

Signed-off-by: Daniel Borkmann <daniel@iogearbox.net>
Acked-by: Martin KaFai Lau <martin.lau@kernel.org>
Link: https://lore.kernel.org/r/20231024214904.29825-8-daniel@iogearbox.net
Signed-off-by: Martin KaFai Lau <martin.lau@kernel.org>

The result as follows,
  torvalds#261/1   set_mempolicy/MPOL_BIND_with_lsm:OK
  torvalds#261/2   set_mempolicy/MPOL_DEFAULT_with_lsm:OK
  torvalds#261/3   set_mempolicy/MPOL_BIND_without_lsm:OK
  torvalds#261/4   set_mempolicy/MPOL_DEFAULT_without_lsm:OK
  torvalds#261     set_mempolicy:OK
  Summary: 1/4 PASSED, 0 SKIPPED, 0 FAILED

Signed-off-by: Yafang Shao <laoar.shao@gmail.com>

Changes:
  * Add Radxa E25 board

Signed-off-by: Stephen Chen <stephen@radxa.com>

…orvalds#261)

Due to the change in the ATCDMAC300 DMA engine driver's initialization
order 'commit 4267e26 ("[backport] Support AIA extension on Andes
ae350 platform (torvalds#240)")', the FTSSP010 DMA driver must be initialized
after ATCDMAC300 to ensure proper DMA functionality.

Reviewed-on: https://gitea.andestech.com/RD-SW/linux/pulls/261
Reviewed-by: Tim Shih-Ting OuYang <tim609@andestech.com>
Reviewed-by: Charles Ci-Jyun Wu <dminus@andestech.com>
Reviewed-by: randolph <randolph@andestech.com>
Co-authored-by: CL Wang <cl634@andestech.com>
Co-committed-by: CL Wang <cl634@andestech.com>

[BUG]
Naohiro reported a weird bug that with CONFIG_BTRFS_DEBUG=n and
CONFIG_BTRFS_EXPERIMENTAL=y, test case btrfs/005 will crash with the
following call trace:

 page: refcount:5 mapcount:0 mapping:00000000a5ae9eff index:0x1c pfn:0x113658
 head: order:2 mapcount:0 entire_mapcount:0 nr_pages_mapped:0 pincount:0
 memcg:ffff888116d31280
 aops:btrfs_aops [btrfs] ino:101 dentry name(?):"tmp_file"
 flags: 0x2ffff800000406c(referenced|uptodate|lru|private|head|node=0|zone=2|lastcpupid=0x1ffff)
 page dumped because: VM_BUG_ON_FOLIO(!folio_test_locked(folio))
 ------------[ cut here ]------------
 kernel BUG at mm/filemap.c:1498!
 Oops: invalid opcode: 0000 [#1] SMP NOPTI
 CPU: 9 UID: 0 PID: 264 Comm: kworker/u50:3 Not tainted 6.16.0-rc1-custom+ torvalds#261 PREEMPT(full)
 Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS unknown 02/02/2022
 Workqueue: btrfs-endio btrfs_end_bio_work [btrfs]
 RIP: 0010:folio_unlock+0x42/0x50
 Code: 37 01 78 05 c3 cc cc cc cc 31 f6 e9 38 fb ff ff 48 c7 c6 58 e6 45 82 e8 4c 69 05 00 0f 0b 48 c7 c6 b8 f3 47 82 e8 3e 69 05 00 <0f> 0b 90 66 66 2e 0f 1f 84 00 00 00 00 00 90 90 90 90 90 90 90 90
 Call Trace:
  <TASK>
  end_bbio_data_read+0x10d/0x4c0 [btrfs]
  ? end_bbio_compressed_read+0x49/0x140 [btrfs]
  end_bbio_compressed_read+0x56/0x140 [btrfs]
  process_one_work+0x1ff/0x570
  worker_thread+0x1cb/0x3a0
  ? __pfx_worker_thread+0x10/0x10
  kthread+0xff/0x260
  ? ret_from_fork+0x1b/0x1b0
  ? lock_release+0xdd/0x2e0
  ? __pfx_kthread+0x10/0x10
  ret_from_fork+0x161/0x1b0
  ? __pfx_kthread+0x10/0x10
  ret_from_fork_asm+0x1a/0x30
  </TASK>

[CAUSE]
CONFIG_BTRFS_EXPERIMENTAL=y enables the large data folio support for
btrfs, as can be seen from the "order: 2" output.

On the other hand function btrfs_is_subpage() checks if we need to go
through the subpage routine.

Meanwhile CONFIG_BTRFS_DEBUG enables another debug-only feature, 2k
block size, making BTRFS_MIN_BLOCKSIZE to be 2K.

And at compile time if page size is larger than the minimal block size,
btrfs_is_subpage() will do the proper check.
But if page size is no larger than minimal block size,
btrfs_is_subpage() is hard coded to return false as we believe there is
no need for subpage support.

But CONFIG_BTRFS_EXPERIMENTAL enables large data folio support, and
without CONFIG_BTRFS_DEBUG, btrfs_is_subpage() will always return false,
causing bugs when hitting a large folio.

[FIX]
Remove the PAGE_SIZE > BTRFS_MIN_BLOCKSIZE checks completely.

This fix will be folded into the large data folio enablement patch.

Reported-by: Naohiro Aota <Naohiro.Aota@wdc.com>
Signed-off-by: Qu Wenruo <wqu@suse.com>