Commit Graph

1268777 Commits

Author SHA1 Message Date
Jens Axboe
92ef0fd55a net: change proto and proto_ops accept type
Rather than pass in flags, error pointer, and whether this is a kernel
invocation or not, add a struct proto_accept_arg struct as the argument.
This then holds all of these arguments, and prepares accept for being
able to pass back more information.

No functional changes in this patch.

Acked-by: Jakub Kicinski <kuba@kernel.org>
Signed-off-by: Jens Axboe <axboe@kernel.dk>
2024-05-13 18:19:09 -06:00
Jens Axboe
fe6532b44a Merge git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net-next into net-accept-more
* git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net-next: (1557 commits)
  net: qede: use extack in qede_parse_actions()
  net: qede: propagate extack through qede_flow_spec_validate()
  net: qede: use faked extack in qede_flow_spec_to_rule()
  net: qede: use extack in qede_parse_flow_attr()
  net: qede: add extack in qede_add_tc_flower_fltr()
  net: qede: use extack in qede_flow_parse_udp_v4()
  net: qede: use extack in qede_flow_parse_udp_v6()
  net: qede: use extack in qede_flow_parse_tcp_v4()
  net: qede: use extack in qede_flow_parse_tcp_v6()
  net: qede: use extack in qede_flow_parse_v4_common()
  net: qede: use extack in qede_flow_parse_v6_common()
  net: qede: use extack in qede_set_v4_tuple_to_profile()
  net: qede: use extack in qede_set_v6_tuple_to_profile()
  net: qede: use extack in qede_flow_parse_ports()
  net: usb: smsc95xx: stop lying about skb->truesize
  net: dsa: microchip: Fix spellig mistake "configur" -> "configure"
  af_unix: Add dead flag to struct scm_fp_list.
  net: ethernet: adi: adin1110: Replace linux/gpio.h by proper one
  octeontx2-pf: Reuse Transmit queue/Send queue index of HTB class
  gve: Use ethtool_sprintf/puts() to fill stats strings
  ...
2024-05-11 08:25:55 -06:00
Jens Axboe
ad1978dbbd Merge branch 'for-6.10/io_uring' into net-accept-more
* for-6.10/io_uring: (97 commits)
  io_uring: support to inject result for NOP
  io_uring: fail NOP if non-zero op flags is passed in
  io_uring/net: add IORING_ACCEPT_POLL_FIRST flag
  io_uring/net: add IORING_ACCEPT_DONTWAIT flag
  io_uring/filetable: don't unnecessarily clear/reset bitmap
  io_uring/io-wq: Use set_bit() and test_bit() at worker->flags
  io_uring/msg_ring: cleanup posting to IOPOLL vs !IOPOLL ring
  io_uring: Require zeroed sqe->len on provided-buffers send
  io_uring/notif: disable LAZY_WAKE for linked notifs
  io_uring/net: fix sendzc lazy wake polling
  io_uring/msg_ring: reuse ctx->submitter_task read using READ_ONCE instead of re-reading it
  io_uring/rw: reinstate thread check for retries
  io_uring/notif: implement notification stacking
  io_uring/notif: simplify io_notif_flush()
  net: add callback for setting a ubuf_info to skb
  net: extend ubuf_info callback to ops structure
  io_uring/net: support bundles for recv
  io_uring/net: support bundles for send
  io_uring/kbuf: add helpers for getting/peeking multiple buffers
  io_uring/net: add provided buffer support for IORING_OP_SEND
  ...
2024-05-11 08:25:50 -06:00
Jakub Kicinski
cddd2dc639 Merge branch '40GbE' of git://git.kernel.org/pub/scm/linux/kernel/git/tnguy/next-queue
Tony Nguyen says:

====================
Intel Wired LAN Driver Updates 2024-05-08 (most Intel drivers)

This series contains updates to i40e, iavf, ice, igb, igc, e1000e, and ixgbe
drivers.

Asbjørn Sloth Tønnesen adds checks against supported flower control flags
for i40e, iavf, ice, and igb drivers.

Michal corrects filters removed during eswitch release for ice.

Corinna Vinschen defers PTP initialization to later in probe so that
netdev log entry is initialized on igc.

Ilpo Järvinen removes a couple of unused, duplicate defines on
e1000e and ixgbe.

* '40GbE' of git://git.kernel.org/pub/scm/linux/kernel/git/tnguy/next-queue:
  net: e1000e & ixgbe: Remove PCI_HEADER_TYPE_MFD duplicates
  igc: fix a log entry using uninitialized netdev
  ice: remove correct filters during eswitch release
  igb: flower: validate control flags
  ice: flower: validate control flags
  iavf: flower: validate control flags
  i40e: flower: validate control flags
====================

Link: https://lore.kernel.org/r/20240508173342.2760994-1-anthony.l.nguyen@intel.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2024-05-10 19:33:52 -07:00
Jakub Kicinski
24e28b60b0 Merge branch 'net-qede-convert-filter-code-to-use-extack'
Asbjørn Sloth Tønnesen says:

====================
net: qede: convert filter code to use extack

This series converts the filter code in the qede driver
to use NL_SET_ERR_MSG_*(extack, ...) for error handling.

Patch 1-12 converts qede_parse_flow_attr() to use extack,
along with all it's static helper functions.

qede_parse_flow_attr() is used in two places:
- qede_add_tc_flower_fltr()
- qede_flow_spec_to_rule()

In the latter call site extack is faked in the same way as
is done in mlxsw (patch 12).

While the conversion is going on, some error messages are silenced
in between patch 1-12. If wanted could squash patch 1-12 in a v3, but
I felt that it would be easier to review as 12 more trivial patches.

Patch 13 and 14, finishes up by converting qede_parse_actions(),
and ensures that extack is propagated to it, in both call contexts.

v1: https://lore.kernel.org/netdev/20240507104421.1628139-1-ast@fiberby.net/
====================

Link: https://lore.kernel.org/r/20240508143404.95901-1-ast@fiberby.net
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2024-05-10 19:30:02 -07:00
Asbjørn Sloth Tønnesen
841548793b net: qede: use extack in qede_parse_actions()
Convert DP_NOTICE/DP_INFO to NL_SET_ERR_MSG_MOD.

Keep edev around for use with QEDE_RSS_COUNT().

Only compile tested.

Signed-off-by: Asbjørn Sloth Tønnesen <ast@fiberby.net>
Reviewed-by: Simon Horman <horms@kernel.org>
Link: https://lore.kernel.org/r/20240508143404.95901-15-ast@fiberby.net
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2024-05-10 19:30:00 -07:00
Asbjørn Sloth Tønnesen
d2a437efd0 net: qede: propagate extack through qede_flow_spec_validate()
Pass extack to qede_flow_spec_validate() when called in
qede_flow_spec_to_rule().

Pass extack to qede_parse_actions().

Not converting qede_flow_spec_validate() to use extack for
errors, as it's only called from qede_flow_spec_to_rule(),
where extack is faked into a DP_NOTICE anyway, so opting to
keep DP_VERBOSE/DP_NOTICE usage.

Only compile tested.

Signed-off-by: Asbjørn Sloth Tønnesen <ast@fiberby.net>
Reviewed-by: Simon Horman <horms@kernel.org>
Link: https://lore.kernel.org/r/20240508143404.95901-14-ast@fiberby.net
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2024-05-10 19:30:00 -07:00
Asbjørn Sloth Tønnesen
eb705d7345 net: qede: use faked extack in qede_flow_spec_to_rule()
Since qede_parse_flow_attr() now does error reporting
through extack, then give it a fake extack and extract the
error message afterwards if one was set.

The extracted error message is then passed on through
DP_NOTICE(), including messages that was earlier issued
with DP_INFO().

This fake extack approach is already used by
mlxsw_env_linecard_modules_power_mode_apply() in
drivers/net/ethernet/mellanox/mlxsw/core_env.c

Only compile tested.

Signed-off-by: Asbjørn Sloth Tønnesen <ast@fiberby.net>
Reviewed-by: Simon Horman <horms@kernel.org>
Link: https://lore.kernel.org/r/20240508143404.95901-13-ast@fiberby.net
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2024-05-10 19:30:00 -07:00
Asbjørn Sloth Tønnesen
d6883bceb2 net: qede: use extack in qede_parse_flow_attr()
Convert qede_parse_flow_attr() to take extack,
and drop the edev argument.

Convert DP_NOTICE calls to use NL_SET_ERR_MSG_* instead.

Pass extack in calls to qede_flow_parse_{tcp,udp}_v{4,6}().

In calls to qede_parse_flow_attr(), if extack is
unavailable, then use NULL for now, until a
subsequent patch makes extack available.

Only compile tested.

Signed-off-by: Asbjørn Sloth Tønnesen <ast@fiberby.net>
Reviewed-by: Simon Horman <horms@kernel.org>
Link: https://lore.kernel.org/r/20240508143404.95901-12-ast@fiberby.net
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2024-05-10 19:30:00 -07:00
Asbjørn Sloth Tønnesen
f833a6555e net: qede: add extack in qede_add_tc_flower_fltr()
Define extack locally, to reduce line lengths and aid future users.

Only compile tested.

Signed-off-by: Asbjørn Sloth Tønnesen <ast@fiberby.net>
Reviewed-by: Simon Horman <horms@kernel.org>
Link: https://lore.kernel.org/r/20240508143404.95901-11-ast@fiberby.net
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2024-05-10 19:30:00 -07:00
Asbjørn Sloth Tønnesen
9c8f5ed884 net: qede: use extack in qede_flow_parse_udp_v4()
Convert qede_flow_parse_udp_v4() to take extack,
and drop the edev argument.

Pass extack in call to qede_flow_parse_v4_common().

In call to qede_flow_parse_udp_v4(), use NULL as extack
for now, until a subsequent patch makes extack available.

Only compile tested.

Signed-off-by: Asbjørn Sloth Tønnesen <ast@fiberby.net>
Reviewed-by: Simon Horman <horms@kernel.org>
Link: https://lore.kernel.org/r/20240508143404.95901-10-ast@fiberby.net
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2024-05-10 19:30:00 -07:00
Asbjørn Sloth Tønnesen
b73ad5c7a7 net: qede: use extack in qede_flow_parse_udp_v6()
Convert qede_flow_parse_udp_v6() to take extack,
and drop the edev argument.

Pass extack in call to qede_flow_parse_v6_common().

In call to qede_flow_parse_udp_v6(), use NULL as extack
for now, until a subsequent patch makes extack available.

Only compile tested.

Signed-off-by: Asbjørn Sloth Tønnesen <ast@fiberby.net>
Reviewed-by: Simon Horman <horms@kernel.org>
Link: https://lore.kernel.org/r/20240508143404.95901-9-ast@fiberby.net
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2024-05-10 19:30:00 -07:00
Asbjørn Sloth Tønnesen
f84d52776c net: qede: use extack in qede_flow_parse_tcp_v4()
Convert qede_flow_parse_tcp_v4() to take extack,
and drop the edev argument.

Pass extack in call to qede_flow_parse_v4_common().

In call to qede_flow_parse_tcp_v4(), use NULL as extack
for now, until a subsequent patch makes extack available.

Only compile tested.

Signed-off-by: Asbjørn Sloth Tønnesen <ast@fiberby.net>
Reviewed-by: Simon Horman <horms@kernel.org>
Link: https://lore.kernel.org/r/20240508143404.95901-8-ast@fiberby.net
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2024-05-10 19:29:59 -07:00
Asbjørn Sloth Tønnesen
b1a18d5781 net: qede: use extack in qede_flow_parse_tcp_v6()
Convert qede_flow_parse_tcp_v6() to take extack,
and drop the edev argument.

Pass extack in call to qede_flow_parse_v6_common().

In call to qede_flow_parse_tcp_v6(), use NULL as extack
for now, until a subsequent patch makes extack available.

Only compile tested.

Signed-off-by: Asbjørn Sloth Tønnesen <ast@fiberby.net>
Reviewed-by: Simon Horman <horms@kernel.org>
Link: https://lore.kernel.org/r/20240508143404.95901-7-ast@fiberby.net
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2024-05-10 19:29:59 -07:00
Asbjørn Sloth Tønnesen
f2f993835b net: qede: use extack in qede_flow_parse_v4_common()
Convert qede_flow_parse_v4_common() to take extack,
and drop the edev argument.

Convert DP_NOTICE call to use NL_SET_ERR_MSG_MOD instead.

Pass extack in calls to qede_flow_parse_ports() and
qede_set_v4_tuple_to_profile().

In calls to qede_flow_parse_v4_common(), use NULL as extack
for now, until a subsequent patch makes extack available.

Only compile tested.

Signed-off-by: Asbjørn Sloth Tønnesen <ast@fiberby.net>
Reviewed-by: Simon Horman <horms@kernel.org>
Link: https://lore.kernel.org/r/20240508143404.95901-6-ast@fiberby.net
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2024-05-10 19:29:59 -07:00
Asbjørn Sloth Tønnesen
a62944d11a net: qede: use extack in qede_flow_parse_v6_common()
Convert qede_flow_parse_v6_common() to take extack,
and drop the edev argument.

Convert DP_NOTICE call to use NL_SET_ERR_MSG_MOD instead.

Pass extack in calls to qede_flow_parse_ports() and
qede_set_v6_tuple_to_profile().

In calls to qede_flow_parse_v6_common(), use NULL as extack
for now, until a subsequent patch makes extack available.

Only compile tested.

Signed-off-by: Asbjørn Sloth Tønnesen <ast@fiberby.net>
Reviewed-by: Simon Horman <horms@kernel.org>
Link: https://lore.kernel.org/r/20240508143404.95901-5-ast@fiberby.net
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2024-05-10 19:29:59 -07:00
Asbjørn Sloth Tønnesen
f63a9dc507 net: qede: use extack in qede_set_v4_tuple_to_profile()
Convert qede_set_v4_tuple_to_profile() to take extack,
and drop the edev argument.

Convert DP_INFO call to use NL_SET_ERR_MSG_MOD instead.

In calls to qede_set_v4_tuple_to_profile(), use NULL as extack
for now, until a subsequent patch makes extack available.

Only compile tested.

Signed-off-by: Asbjørn Sloth Tønnesen <ast@fiberby.net>
Reviewed-by: Simon Horman <horms@kernel.org>
Link: https://lore.kernel.org/r/20240508143404.95901-4-ast@fiberby.net
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2024-05-10 19:29:59 -07:00
Asbjørn Sloth Tønnesen
6f88f1257a net: qede: use extack in qede_set_v6_tuple_to_profile()
Convert qede_set_v6_tuple_to_profile() to take extack,
and drop the edev argument.

Convert DP_INFO call to use NL_SET_ERR_MSG_MOD instead.

In calls to qede_set_v6_tuple_to_profile(), use NULL as extack
for now, until a subsequent patch makes extack available.

Only compile tested.

Signed-off-by: Asbjørn Sloth Tønnesen <ast@fiberby.net>
Reviewed-by: Simon Horman <horms@kernel.org>
Link: https://lore.kernel.org/r/20240508143404.95901-3-ast@fiberby.net
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2024-05-10 19:29:59 -07:00
Asbjørn Sloth Tønnesen
a7c9540e96 net: qede: use extack in qede_flow_parse_ports()
Convert qede_flow_parse_ports to use extack,
and drop the edev argument.

Convert DP_NOTICE call to use NL_SET_ERR_MSG_MOD instead.

In calls to qede_flow_parse_ports(), use NULL as extack
for now, until a subsequent patch makes extack available.

Only compile tested.

Signed-off-by: Asbjørn Sloth Tønnesen <ast@fiberby.net>
Reviewed-by: Simon Horman <horms@kernel.org>
Link: https://lore.kernel.org/r/20240508143404.95901-2-ast@fiberby.net
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2024-05-10 19:29:59 -07:00
Eric Dumazet
d50729f1d6 net: usb: smsc95xx: stop lying about skb->truesize
Some usb drivers try to set small skb->truesize and break
core networking stacks.

In this patch, I removed one of the skb->truesize override.

I also replaced one skb_clone() by an allocation of a fresh
and small skb, to get minimally sized skbs, like we did
in commit 1e2c611723 ("net: cdc_ncm: reduce skb truesize
in rx path") and 4ce62d5b2f ("net: usb: ax88179_178a:
stop lying about skb->truesize")

v3: also fix a sparse error ( https://lore.kernel.org/oe-kbuild-all/202405091310.KvncIecx-lkp@intel.com/ )
v2: leave the skb_trim() game because smsc95xx_rx_csum_offload()
    needs the csum part. (Jakub)
    While we are it, use get_unaligned() in smsc95xx_rx_csum_offload().

Fixes: 2f7ca802bd ("net: Add SMSC LAN9500 USB2.0 10/100 ethernet adapter driver")
Signed-off-by: Eric Dumazet <edumazet@google.com>
Cc: Steve Glendinning <steve.glendinning@shawell.net>
Cc: UNGLinuxDriver@microchip.com
Reviewed-by: Simon Horman <horms@kernel.org>
Link: https://lore.kernel.org/r/20240509083313.2113832-1-edumazet@google.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2024-05-10 19:22:53 -07:00
Colin Ian King
089507a679 net: dsa: microchip: Fix spellig mistake "configur" -> "configure"
There is a spelling mistake in a dev_err message. Fix it.

Signed-off-by: Colin Ian King <colin.i.king@gmail.com>
Reviewed-by: Simon Horman <horms@kernel.org>
Link: https://lore.kernel.org/r/20240509065023.3033397-1-colin.i.king@gmail.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2024-05-10 19:21:22 -07:00
Kuniyuki Iwashima
7172dc93d6 af_unix: Add dead flag to struct scm_fp_list.
Commit 1af2dface5 ("af_unix: Don't access successor in unix_del_edges()
during GC.") fixed use-after-free by avoid accessing edge->successor while
GC is in progress.

However, there could be a small race window where another process could
call unix_del_edges() while gc_in_progress is true and __skb_queue_purge()
is on the way.

So, we need another marker for struct scm_fp_list which indicates if the
skb is garbage-collected.

This patch adds dead flag in struct scm_fp_list and set it true before
calling __skb_queue_purge().

Fixes: 1af2dface5 ("af_unix: Don't access successor in unix_del_edges() during GC.")
Signed-off-by: Kuniyuki Iwashima <kuniyu@amazon.com>
Acked-by: Paolo Abeni <pabeni@redhat.com>
Link: https://lore.kernel.org/r/20240508171150.50601-1-kuniyu@amazon.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2024-05-10 18:52:45 -07:00
Andy Shevchenko
84c8b7ad5e net: ethernet: adi: adin1110: Replace linux/gpio.h by proper one
linux/gpio.h is deprecated and subject to remove.
The driver doesn't use it directly, replace it
with what is really being used.

Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Reviewed-by: Simon Horman <horms@kernel.org>
Link: https://lore.kernel.org/r/20240508114519.972082-1-andriy.shevchenko@linux.intel.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2024-05-10 18:51:34 -07:00
Hariprasad Kelam
04fb71cc5f octeontx2-pf: Reuse Transmit queue/Send queue index of HTB class
Real number of Transmit queues are incremented when user enables HTB
class and vice versa. Depending on SKB priority driver returns transmit
queue (Txq). Transmit queues and Send queues are one-to-one mapped.

In few scenarios, Driver is returning transmit queue value which is
greater than real number of transmit queue and Stack detects this as
error and overwrites transmit queue value.

For example
user has added two classes and real number of queues are incremented
accordingly
- tc class add dev eth1 parent 1: classid 1:1 htb
      rate 100Mbit ceil 100Mbit prio 1 quantum 1024
- tc class add dev eth1 parent 1: classid 1:2 htb
      rate 100Mbit ceil 200Mbit prio 7 quantum 1024

now if user deletes the class with id 1:1, driver decrements the real
number of queues
- tc class del dev eth1 classid 1:1

But for the class with id 1:2, driver is returning transmit queue
value which is higher than real number of transmit queue leading
to below error

eth1 selects TX queue x, but real number of TX queues is x

This patch solves the problem by assigning deleted class transmit
queue/send queue to active class.

Signed-off-by: Hariprasad Kelam <hkelam@marvell.com>
Reviewed-by: Simon Horman <horms@kernel.org>
Link: https://lore.kernel.org/r/20240508070935.11501-1-hkelam@marvell.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2024-05-10 18:49:15 -07:00
Jakub Kicinski
9c1bbc7ea1 Merge branch 'gve-minor-cleanups'
Simon Horman says:

====================
gve: Minor cleanups

This short patchset provides two minor cleanups for the gve driver.

These were found by tooling as mentioned in each patch,
and otherwise by inspection.

No change in run time behaviour is intended.
Each patch is compile tested only.

v1: https://lore.kernel.org/r/20240503-gve-comma-v1-0-b50f965694ef@kernel.org
====================

Link: https://lore.kernel.org/r/20240508-gve-comma-v2-0-1ac919225f13@kernel.org
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2024-05-10 18:40:52 -07:00
Simon Horman
ba8bcb012b gve: Use ethtool_sprintf/puts() to fill stats strings
Make use of standard helpers to simplify filling in stats strings.

The first two ethtool_puts() changes address the following fortification
warnings flagged by W=1 builds with clang-18. (The last ethtool_puts
change does not because the warning relates to writing beyond the first
element of an array, and gve_gstrings_priv_flags only has one element.)

.../fortify-string.h:562:4: warning: call to '__read_overflow2_field' declared with 'warning' attribute: detected read beyond size of field (2nd parameter); maybe use struct_group()? [-Wattribute-warning]
  562 |                         __read_overflow2_field(q_size_field, size);
      |                         ^
.../fortify-string.h:562:4: warning: call to '__read_overflow2_field' declared with 'warning' attribute: detected read beyond size of field (2nd parameter); maybe use struct_group()? [-Wattribute-warning]

Likewise, the same changes resolve the same problems flagged by Smatch.

.../gve_ethtool.c:100 gve_get_strings() error: __builtin_memcpy() '*gve_gstrings_main_stats' too small (32 vs 576)
.../gve_ethtool.c:120 gve_get_strings() error: __builtin_memcpy() '*gve_gstrings_adminq_stats' too small (32 vs 512)

Compile tested only.

Reviewed-by: Shailend Chand <shailend@google.com>
Reviewed-by: Larysa Zaremba <larysa.zaremba@intel.com>
Signed-off-by: Simon Horman <horms@kernel.org>
Acked-by: Justin Stitt <justinstitt@google.com>
Link: https://lore.kernel.org/r/20240508-gve-comma-v2-2-1ac919225f13@kernel.org
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2024-05-10 18:40:49 -07:00
Simon Horman
ebb8308eac gve: Avoid unnecessary use of comma operator
Although it does not seem to have any untoward side-effects,
the use of ';' to separate to assignments seems more appropriate than ','.

Flagged by clang-18 -Wcomma

No functional change intended.
Compile tested only.

Reviewed-by: Shailend Chand <shailend@google.com>
Reviewed-by: Larysa Zaremba <larysa.zaremba@intel.com>
Signed-off-by: Simon Horman <horms@kernel.org>
Link: https://lore.kernel.org/r/20240508-gve-comma-v2-1-1ac919225f13@kernel.org
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2024-05-10 18:40:49 -07:00
Jakub Kicinski
b9d5f5711d selftests: net: increase the delay for relative cmsg_time.sh test
Slow machines can delay scheduling of the packets for milliseconds.
Increase the delay to 8ms if KSFT_MACHINE_SLOW. Try to limit the
variability by moving setsockopts earlier (before we read time).

This fixes the "TXTIME rel" failures on debug kernels, like:

  Case ICMPv4  - TXTIME rel returned '', expected 'OK'

Reviewed-by: Willem de Bruijn <willemb@google.com>
Link: https://lore.kernel.org/r/20240510005705.43069-2-kuba@kernel.org
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2024-05-10 18:22:10 -07:00
Jakub Kicinski
2d3b8dfd82 selftests: net: fix timestamp not arriving in cmsg_time.sh
On slow machines the SND timestamp sometimes doesn't arrive before
we quit. The test only waits as long as the packet delay, so it's
easy for a race condition to happen.

Double the wait but do a bit of polling, once the SND timestamp
arrives there's no point to wait any longer.

This fixes the "TXTIME abs" failures on debug kernels, like:

   Case ICMPv4  - TXTIME abs returned '', expected 'OK'

Reviewed-by: Willem de Bruijn <willemb@google.com>
Link: https://lore.kernel.org/r/20240510005705.43069-1-kuba@kernel.org
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2024-05-10 18:22:00 -07:00
Daniel Jurgens
b49bd37f0b virtio_net: Fix memory leak in virtnet_rx_mod_work
The pointer delcaration was missing the __free(kfree).

Fixes: ff7c7d9f52 ("virtio_net: Remove command data from control_buf")
Reported-by: Jens Axboe <axboe@kernel.dk>
Closes: https://lore.kernel.org/netdev/0674ca1b-020f-4f93-94d0-104964566e3f@kernel.dk/
Signed-off-by: Daniel Jurgens <danielj@nvidia.com>
Tested-by: Jens Axboe <axboe@kernel.dk>
Reviewed-by: Xuan Zhuo <xuanzhuo@linux.alibaba.com>
Acked-by: Michael S. Tsirkin <mst@redhat.com>
Link: https://lore.kernel.org/r/20240509183634.143273-1-danielj@nvidia.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2024-05-10 18:20:07 -07:00
Vadim Fedorenko
38155539a1 bnxt_en: silence clang build warning
Clang build brings a warning:

    ../drivers/net/ethernet/broadcom/bnxt/bnxt_ptp.c:133:12: warning:
    comparison of distinct pointer types ('typeof (tmo_us) *' (aka 'unsigned
    int *') and 'typeof (65535) *' (aka 'int *'))
    [-Wcompare-distinct-pointer-types]
      133 |                 tmo_us = min(tmo_us, BNXT_PTP_QTS_MAX_TMO_US);
          |                          ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~

Fix it by specifying proper type for BNXT_PTP_QTS_MAX_TMO_US.

Fixes: 7de3c2218e ("bnxt_en: Add a timeout parameter to bnxt_hwrm_port_ts_query()")
Signed-off-by: Vadim Fedorenko <vadim.fedorenko@linux.dev>
Reviewed-by: Michael Chan <michael.chan@broadcom.com>
Link: https://lore.kernel.org/r/20240509151833.12579-1-vadim.fedorenko@linux.dev
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2024-05-10 18:16:35 -07:00
Linus Torvalds
cf87f46fd3 drm fixes for 6.9 final
core:
 - fix connector debugging output
 
 i915:
 - Automate CCS Mode setting during engine resets
 - Fix audio time stamp programming for DP
 - Fix parsing backlight BDB data
 
 xe:
 - Fix use zero-length element array
 - Move more from system wq to ordered private wq
 - Do not ignore return for drmm_mutex_init
 
 amdgpu:
 - DCN 3.5 fix
 - MST DSC fixes
 - S0i3 fix
 - S4 fix
 - HDP MMIO mapping fix
 - Fix a regression in visible vram handling
 
 amdkfd:
 - Spatial partition fix
 
 meson:
 - dw-hdmi: power-up fixes
 - dw-hdmi: add badngap setting for g12
 
 nouveau:
 - revert SG_DEBUG fix that has a side effect
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Merge tag 'drm-fixes-2024-05-11' of https://gitlab.freedesktop.org/drm/kernel

Pull drm fixes from Dave Airlie:
 "This should be the last set of fixes for 6.9, i915, xe and amdgpu are
  the bulk here, one of the previous nouveau fixes turned up an issue,
  so reverting it, otherwise one core and a couple of meson fixes.

  core:
   - fix connector debugging output

  i915:
   - Automate CCS Mode setting during engine resets
   - Fix audio time stamp programming for DP
   - Fix parsing backlight BDB data

  xe:
   - Fix use zero-length element array
   - Move more from system wq to ordered private wq
   - Do not ignore return for drmm_mutex_init

  amdgpu:
   - DCN 3.5 fix
   - MST DSC fixes
   - S0i3 fix
   - S4 fix
   - HDP MMIO mapping fix
   - Fix a regression in visible vram handling

  amdkfd:
   - Spatial partition fix

  meson:
   - dw-hdmi: power-up fixes
   - dw-hdmi: add badngap setting for g12

  nouveau:
   - revert SG_DEBUG fix that has a side effect"

* tag 'drm-fixes-2024-05-11' of https://gitlab.freedesktop.org/drm/kernel:
  Revert "drm/nouveau/firmware: Fix SG_DEBUG error with nvkm_firmware_ctor()"
  drm/amdgpu: Fix comparison in amdgpu_res_cpu_visible
  drm/amdkfd: don't allow mapping the MMIO HDP page with large pages
  drm/xe: Use ordered WQ for G2H handler
  drm/xe/guc: Check error code when initializing the CT mutex
  drm/xe/ads: Use flexible-array
  Revert "drm/amdkfd: Add partition id field to location_id"
  dm/amd/pm: Fix problems with reboot/shutdown for some SMU 13.0.4/13.0.11 users
  drm/amd/display: MST DSC check for older devices
  drm/amd/display: Fix idle optimization checks for multi-display and dual eDP
  drm/amd/display: Fix DSC-re-computing
  drm/amd/display: Enable urgent latency adjustments for DCN35
  drm/connector: Add \n to message about demoting connector force-probes
  drm/i915/bios: Fix parsing backlight BDB data
  drm/i915/audio: Fix audio time stamp programming for DP
  drm/i915/gt: Automate CCS Mode setting during engine resets
  drm/meson: dw-hdmi: add bandgap setting for g12
  drm/meson: dw-hdmi: power up phy on device init
2024-05-10 14:37:05 -07:00
Linus Torvalds
c22c3e0753 18 hotfixes, 7 of which are cc:stable.
More fixups for this cycle's page_owner updates.  And a few userfaultfd
 fixes.  Otherwise, random singletons - see the individual changelogs for
 details.
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Merge tag 'mm-hotfixes-stable-2024-05-10-13-14' of git://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm

Pull MM fixes from Andrew Morton:
 "18 hotfixes, 7 of which are cc:stable.

  More fixups for this cycle's page_owner updates. And a few userfaultfd
  fixes. Otherwise, random singletons - see the individual changelogs
  for details"

* tag 'mm-hotfixes-stable-2024-05-10-13-14' of git://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm:
  mailmap: add entry for Barry Song
  selftests/mm: fix powerpc ARCH check
  mailmap: add entry for John Garry
  XArray: set the marks correctly when splitting an entry
  selftests/vDSO: fix runtime errors on LoongArch
  selftests/vDSO: fix building errors on LoongArch
  mm,page_owner: don't remove __GFP_NOLOCKDEP in add_stack_record_to_list
  fs/proc/task_mmu: fix uffd-wp confusion in pagemap_scan_pmd_entry()
  fs/proc/task_mmu: fix loss of young/dirty bits during pagemap scan
  mm/vmalloc: fix return value of vb_alloc if size is 0
  mm: use memalloc_nofs_save() in page_cache_ra_order()
  kmsan: compiler_types: declare __no_sanitize_or_inline
  lib/test_xarray.c: fix error assumptions on check_xa_multi_store_adv_add()
  tools: fix userspace compilation with new test_xarray changes
  MAINTAINERS: update URL's for KEYS/KEYRINGS_INTEGRITY and TPM DEVICE DRIVER
  mm: page_owner: fix wrong information in dump_page_owner
  maple_tree: fix mas_empty_area_rev() null pointer dereference
  mm/userfaultfd: reset ptes when close() for wr-protected ones
2024-05-10 14:16:03 -07:00
Dave Airlie
a222a6470d Revert "drm/nouveau/firmware: Fix SG_DEBUG error with nvkm_firmware_ctor()"
This reverts commit 52a6947bf5.

This causes loading failures in
[    0.367379] nouveau 0000:01:00.0: NVIDIA GP104 (134000a1)
[    0.474499] nouveau 0000:01:00.0: bios: version 86.04.50.80.13
[    0.474620] nouveau 0000:01:00.0: pmu: firmware unavailable
[    0.474977] nouveau 0000:01:00.0: fb: 8192 MiB GDDR5
[    0.484371] nouveau 0000:01:00.0: sec2(acr): mbox 00000001 00000000
[    0.484377] nouveau 0000:01:00.0: sec2(acr):load: boot failed: -5
[    0.484379] nouveau 0000:01:00.0: acr: init failed, -5
[    0.484466] nouveau 0000:01:00.0: init failed with -5
[    0.484468] nouveau: DRM-master:00000000:00000080: init failed with -5
[    0.484470] nouveau 0000:01:00.0: DRM-master: Device allocation failed: -5
[    0.485078] nouveau 0000:01:00.0: probe with driver nouveau failed with error -50

I tried tracking it down but ran out of time this week, will revisit next week.

Reported-by: Dan Moulding <dan@danm.net>
Cc: stable@vger.kernel.org
Signed-off-by: Dave Airlie <airlied@redhat.com>
2024-05-11 07:04:10 +10:00
Dave Airlie
b61821bb32 Short summary of fixes pull:
core:
 - fix connector debugging output
 
 meson:
 - dw-hdmi: power-up fixes
 - dw-hdmi: add badngap setting for g12
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Merge tag 'drm-misc-fixes-2024-05-10' of https://gitlab.freedesktop.org/drm/misc/kernel into drm-fixes

Short summary of fixes pull:

core:
- fix connector debugging output

meson:
- dw-hdmi: power-up fixes
- dw-hdmi: add badngap setting for g12

Signed-off-by: Dave Airlie <airlied@redhat.com>

From: Thomas Zimmermann <tzimmermann@suse.de>
Link: https://patchwork.freedesktop.org/patch/msgid/20240510072027.GA9131@linux.fritz.box
2024-05-11 07:01:16 +10:00
Linus Torvalds
cfb4be1a61 gpio fixes for v6.9
- fix a performance regression in GPIO requesting and releasing after
   the conversion to SRCU
 - fix a use-after-free bug due to a race-condition
 - fix leaking stack memory to user-space in a GPIO uABI corner case
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Merge tag 'gpio-fixes-for-v6.9' of git://git.kernel.org/pub/scm/linux/kernel/git/brgl/linux

Pull gpio fixes from Bartosz Golaszewski:
 "Some last-minute fixes for this release from the GPIO subsystem.

  The first two address a regression in performance reported to me after
  the conversion to using SRCU in GPIOLIB that was merged during the
  v6.9 merge window. The second patch is not technically a fix but since
  after the first one we no longer need to use a per-descriptor SRCU
  struct, I think it's worth to simplify the code before it gets
  released on Sunday.

  The next two commits fix two memory issues: one use-after-free bug and
  one instance of possibly leaking kernel stack memory to user-space.

  Summary:

   - fix a performance regression in GPIO requesting and releasing after
     the conversion to SRCU

   - fix a use-after-free bug due to a race-condition

   - fix leaking stack memory to user-space in a GPIO uABI corner case"

* tag 'gpio-fixes-for-v6.9' of git://git.kernel.org/pub/scm/linux/kernel/git/brgl/linux:
  gpiolib: cdev: fix uninitialised kfifo
  gpiolib: cdev: Fix use after free in lineinfo_changed_notify
  gpiolib: use a single SRCU struct for all GPIO descriptors
  gpiolib: fix the speed of descriptor label setting with SRCU
2024-05-10 14:01:00 -07:00
Dave Airlie
06fbf84f46 amd-drm-fixes-6.9-2024-05-10:
amdgpu:
 - DCN 3.5 fix
 - MST DSC fixes
 - S0i3 fix
 - S4 fix
 - HDP MMIO mapping fix
 - Fix a regression in visible vram handling
 
 amdkfd:
 - Spatial partition fix
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Merge tag 'amd-drm-fixes-6.9-2024-05-10' of https://gitlab.freedesktop.org/agd5f/linux into drm-fixes

amd-drm-fixes-6.9-2024-05-10:

amdgpu:
- DCN 3.5 fix
- MST DSC fixes
- S0i3 fix
- S4 fix
- HDP MMIO mapping fix
- Fix a regression in visible vram handling

amdkfd:
- Spatial partition fix

Signed-off-by: Dave Airlie <airlied@redhat.com>

From: Alex Deucher <alexander.deucher@amd.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20240510171110.1394940-1-alexander.deucher@amd.com
2024-05-11 06:42:45 +10:00
Barry Song
672614a3ed mailmap: add entry for Barry Song
Include a .mailmap entry to synchronize with both my past and current
emails.  Among them, three business mailboxes are dead.

Link: https://lkml.kernel.org/r/20240506042009.10854-1-21cnbao@gmail.com
Signed-off-by: Barry Song <v-songbaohua@oppo.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
2024-05-10 12:55:36 -07:00
Michael Ellerman
7e6423441b selftests/mm: fix powerpc ARCH check
In commit 0518dbe97f ("selftests/mm: fix cross compilation with LLVM")
the logic to detect the machine architecture in the Makefile was changed
to use ARCH, and only fallback to uname -m if ARCH is unset.  However the
tests of ARCH were not updated to account for the fact that ARCH is
"powerpc" for powerpc builds, not "ppc64".

Fix it by changing the checks to look for "powerpc", and change the
uname -m logic to convert "ppc64.*" into "powerpc".

With that fixed the following tests now build for powerpc again:
 * protection_keys
 * va_high_addr_switch
 * virtual_address_range
 * write_to_hugetlbfs

Link: https://lkml.kernel.org/r/20240506115825.66415-1-mpe@ellerman.id.au
Fixes: 0518dbe97f ("selftests/mm: fix cross compilation with LLVM")
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
Cc: Mark Brown <broonie@kernel.org>
Cc: <stable@vger.kernel.org>	[6.4+]
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
2024-05-10 12:55:36 -07:00
Linus Torvalds
f4345f05c0 block-6.9-20240510
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Merge tag 'block-6.9-20240510' of git://git.kernel.dk/linux

Pull block fixes from Jens Axboe:

 - NVMe pull request via Keith:
     - nvme target fixes (Sagi, Dan, Maurizo)
     - new vendor quirk for broken MSI (Sean)

 - Virtual boundary fix for a regression in this merge window (Ming)

* tag 'block-6.9-20240510' of git://git.kernel.dk/linux:
  nvmet-rdma: fix possible bad dereference when freeing rsps
  nvmet: prevent sprintf() overflow in nvmet_subsys_nsid_exists()
  nvmet: make nvmet_wq unbound
  nvmet-auth: return the error code to the nvmet_auth_ctrl_hash() callers
  nvme-pci: Add quirk for broken MSIs
  block: set default max segment size in case of virt_boundary
2024-05-10 10:24:16 -07:00
Linus Torvalds
ed44935c33 spi: Fixes for v6.9
Two device specific fixes here, one avoiding glitches on chip select
 with the STM32 driver and one for incorrectly configured clocks on the
 Microchip QSPI controller.
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Merge tag 'spi-fix-v6.9-rc7' of git://git.kernel.org/pub/scm/linux/kernel/git/broonie/spi

Pull spi fixes from Mark Brown:
 "Two device specific fixes here, one avoiding glitches on chip select
  with the STM32 driver and one for incorrectly configured clocks on the
  Microchip QSPI controller"

* tag 'spi-fix-v6.9-rc7' of git://git.kernel.org/pub/scm/linux/kernel/git/broonie/spi:
  spi: microchip-core-qspi: fix setting spi bus clock rate
  spi: stm32: enable controller before asserting CS
2024-05-10 10:20:49 -07:00
Linus Torvalds
99dff48496 regulator: Fixes for v6.9
Two fixes here, one from Johan which fixes error handling when we
 attempt to create duplicate debugfs files and one for an incorrect
 specification of ramp_delay with the rtq2208.
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Merge tag 'regulator-fix-v6.9-rc7' of git://git.kernel.org/pub/scm/linux/kernel/git/broonie/regulator

Pull regulator fixes from Mark Brown:
 "Two fixes here, one from Johan which fixes error handling when we
  attempt to create duplicate debugfs files and one for an incorrect
  specification of ramp_delay with the rtq2208"

* tag 'regulator-fix-v6.9-rc7' of git://git.kernel.org/pub/scm/linux/kernel/git/broonie/regulator:
  regulator: core: fix debugfs creation regression
  regulator: rtq2208: Fix the BUCK ramp_delay range to maximum of 16mVstep/us
2024-05-10 10:18:31 -07:00
Linus Torvalds
92d503011f Fix possible (but unlikely) out-of-bounds access in
the timer migration per-CPU-init code.
 
 Signed-off-by: Ingo Molnar <mingo@kernel.org>
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Merge tag 'timers-urgent-2024-05-10' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip

Pull timer fix from Ingo Molnar:
 "Fix possible (but unlikely) out-of-bounds access in the timer
  migration per-CPU-init code"

* tag 'timers-urgent-2024-05-10' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
  timers/migration: Prevent out of bounds access on failure
2024-05-10 10:15:58 -07:00
Linus Torvalds
98957025cf IOMMU Fixes for Linux v6.9-rc7:
Including:
 
 	- Fix offset miscalculation on ARM-SMMU driver
 
 	- AMD IOMMU fix for initializing state of untrusted devices
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Merge tag 'iommu-fixes-v6.9-rc7' of git://git.kernel.org/pub/scm/linux/kernel/git/joro/iommu

Pull iommu fixes from Joerg Roedel:

 - Fix offset miscalculation on ARM-SMMU driver

 - AMD IOMMU fix for initializing state of untrusted devices

* tag 'iommu-fixes-v6.9-rc7' of git://git.kernel.org/pub/scm/linux/kernel/git/joro/iommu:
  iommu/arm-smmu: Use the correct type in nvidia_smmu_context_fault()
  iommu/amd: Enhance def_domain_type to handle untrusted device
2024-05-10 10:10:21 -07:00
Michel Dänzer
8d2c930735 drm/amdgpu: Fix comparison in amdgpu_res_cpu_visible
It incorrectly claimed a resource isn't CPU visible if it's located at
the very end of CPU visible VRAM.

Fixes: a6ff969fe9 ("drm/amdgpu: fix visible VRAM handling during faults")
Closes: https://gitlab.freedesktop.org/drm/amd/-/issues/3343
Reviewed-by: Christian König <christian.koenig@amd.com>
Reviewed-by: Alex Deucher <alexander.deucher@amd.com>
Reported-and-Tested-by: Jeremy Day <jsday@noreason.ca>
Signed-off-by: Michel Dänzer <mdaenzer@redhat.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
CC: stable@vger.kernel.org
2024-05-10 13:05:13 -04:00
Alex Deucher
be4a2a81b6 drm/amdkfd: don't allow mapping the MMIO HDP page with large pages
We don't get the right offset in that case.  The GPU has
an unused 4K area of the register BAR space into which you can
remap registers.  We remap the HDP flush registers into this
space to allow userspace (CPU or GPU) to flush the HDP when it
updates VRAM.  However, on systems with >4K pages, we end up
exposing PAGE_SIZE of MMIO space.

Fixes: d8e408a827 ("drm/amdkfd: Expose HDP registers to user space")
Reviewed-by: Felix Kuehling <felix.kuehling@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Cc: stable@vger.kernel.org
2024-05-10 13:05:13 -04:00
Kent Gibson
ee0166b637 gpiolib: cdev: fix uninitialised kfifo
If a line is requested with debounce, and that results in debouncing
in software, and the line is subsequently reconfigured to enable edge
detection then the allocation of the kfifo to contain edge events is
overlooked.  This results in events being written to and read from an
uninitialised kfifo.  Read events are returned to userspace.

Initialise the kfifo in the case where the software debounce is
already active.

Fixes: 65cff70464 ("gpiolib: cdev: support setting debounce")
Signed-off-by: Kent Gibson <warthog618@gmail.com>
Link: https://lore.kernel.org/r/20240510065342.36191-1-warthog618@gmail.com
Signed-off-by: Bartosz Golaszewski <bartosz.golaszewski@linaro.org>
2024-05-10 16:38:27 +02:00
David S. Miller
f8beae078c gtp pull request 24-05-07
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Merge tag 'gtp-24-05-07' of git://git.kernel.org/pub/scm/linux/kernel/git/pablo/gtp
Pablo neira Ayuso says:

====================
gtp pull request 24-05-07

This v3 includes:
- fix for clang uninitialized variable per Jakub.
- address Smatch and Coccinelle reports per Simon
- remove inline in new IPv6 support per Simon
- fix memleaks in netlink control plane per Simon
-o-

The following patchset contains IPv6 GTP driver support for net-next,
this also includes IPv6 over IPv4 and vice-versa:

Patch #1 removes a unnecessary stack variable initialization in the
         socket routine.

Patch #2 deals with GTP extension headers. This variable length extension
         header to decapsulate packets accordingly. Otherwise, packets are
         dropped when these extension headers are present which breaks
         interoperation with other non-Linux based GTP implementations.

Patch #3 prepares for IPv6 support by moving IPv4 specific fields in PDP
         context objects to a union.

Patch #4 adds IPv6 support while retaining backward compatibility.
         Three new attributes allows to declare an IPv6 GTP tunnel
         GTPA_FAMILY, GTPA_PEER_ADDR6 and GTPA_MS_ADDR6 as well as
         IFLA_GTP_LOCAL6 to declare the IPv6 GTP UDP socket. Up to this
         patch, only IPv6 outer in IPv6 inner is supported.

Patch #5 uses IPv6 address /64 prefix for UE/MS in the inner headers.
         Unlike IPv4, which provides a 1:1 mapping between UE/MS,
         IPv6 tunnel encapsulates traffic for /64 address as specified
         by 3GPP TS. Patch has been split from Patch #4 to highlight
         this behaviour.

Patch #6 passes up IPv6 link-local traffic, such as IPv6 SLAAC, for
         handling to userspace so they are handled as control packets.

Patch #7 prepares to allow for GTP IPv4 over IPv6 and vice-versa by
         moving IP specific debugging out of the function to build
         IPv4 and IPv6 GTP packets.

Patch #8 generalizes TOS/DSCP handling following similar approach as
         in the existing iptunnel infrastructure.

Patch #9 adds a helper function to build an IPv4 GTP packet in the outer
         header.

Patch #10 adds a helper function to build an IPv6 GTP packet in the outer
          header.

Patch #11 adds support for GTP IPv4-over-IPv6 and vice-versa.

Patch #12 allows to use the same TID/TEID (tunnel identifier) for inner
          IPv4 and IPv6 packets for better UE/MS dual stack integration.

This series integrates with the osmocom.org project CI and TTCN-3 test
infrastructure (Oliver Smith) as well as the userspace libgtpnl library.

Thanks to Harald Welte, Oliver Smith and Pau Espin for reviewing and
providing feedback through the osmocom.org redmine platform to make this
happen.
====================

Signed-off-by: David S. Miller <davem@davemloft.net>
2024-05-10 13:59:27 +01:00
Ming Lei
deb1e496a8 io_uring: support to inject result for NOP
Support to inject result for NOP so that we can inject failure from
userspace. It is very helpful for covering failure handling code in
io_uring core change.

With nop flags, it becomes possible to add more test features on NOP in
future.

Suggested-by: Jens Axboe <axboe@kernel.dk>
Signed-off-by: Ming Lei <ming.lei@redhat.com>
Link: https://lore.kernel.org/r/20240510035031.78874-3-ming.lei@redhat.com
Signed-off-by: Jens Axboe <axboe@kernel.dk>
2024-05-10 06:09:45 -06:00
Ming Lei
3d8f874bd6 io_uring: fail NOP if non-zero op flags is passed in
The NOP op flags should have been checked from beginning like any other
opcode, otherwise NOP may not be extended with the op flags.

Given both liburing and Rust io-uring crate always zeros SQE op flags, just
ignore users which play raw NOP uring interface without zeroing SQE, because
NOP is just for test purpose. Then we can save one NOP2 opcode.

Suggested-by: Jens Axboe <axboe@kernel.dk>
Fixes: 2b188cc1bb ("Add io_uring IO interface")
Cc: stable@vger.kernel.org
Signed-off-by: Ming Lei <ming.lei@redhat.com>
Link: https://lore.kernel.org/r/20240510035031.78874-2-ming.lei@redhat.com
Signed-off-by: Jens Axboe <axboe@kernel.dk>
2024-05-10 06:09:45 -06:00