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The imperfect hash area can be updated while packets are traversing,
which will cause a use-after-free when 'tcf_exts_exec()' is called
with the destroyed tcf_ext.
CPU 0: CPU 1:
tcindex_set_parms tcindex_classify
tcindex_lookup
tcindex_lookup
tcf_exts_change
tcf_exts_exec [UAF]
Stop operating on the shared area directly, by using a local copy,
and update the filter with 'rcu_replace_pointer()'. Delete the old
filter version only after a rcu grace period elapsed.
Fixes: 9b0d4446b569 ("net: sched: avoid atomic swap in tcf_exts_change")
Reported-by: valis <sec@valis.email>
Suggested-by: valis <sec@valis.email>
Signed-off-by: Jamal Hadi Salim <jhs@mojatatu.com>
Signed-off-by: Pedro Tammela <pctammela@mojatatu.com>
Link: https://lore.kernel.org/r/20230209143739.279867-1-pctammela@mojatatu.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
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This function always returns success. We need to preserve the error
code before setting rx_ring->page_pool = NULL.
Fixes: 850b971110b2 ("net: libwx: Allocate Rx and Tx resources")
Signed-off-by: Dan Carpenter <error27@gmail.com>
Link: https://lore.kernel.org/r/Y+T4aoefc1XWvGYb@kili
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
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A new user of MSCC_OCELOT_SWITCH_LIB was added, bringing back an old
link failure that was fixed with e5f31552674e ("ethernet: fix
PTP_1588_CLOCK dependencies"):
x86_64-linux-ld: drivers/net/ethernet/mscc/ocelot_ptp.o: in function `ocelot_ptp_enable':
ocelot_ptp.c:(.text+0x8ee): undefined reference to `ptp_find_pin'
x86_64-linux-ld: drivers/net/ethernet/mscc/ocelot_ptp.o: in function `ocelot_get_ts_info':
ocelot_ptp.c:(.text+0xd5d): undefined reference to `ptp_clock_index'
x86_64-linux-ld: drivers/net/ethernet/mscc/ocelot_ptp.o: in function `ocelot_init_timestamp':
ocelot_ptp.c:(.text+0x15ca): undefined reference to `ptp_clock_register'
x86_64-linux-ld: drivers/net/ethernet/mscc/ocelot_ptp.o: in function `ocelot_deinit_timestamp':
ocelot_ptp.c:(.text+0x16b7): undefined reference to `ptp_clock_unregister'
Add the same PTP dependency here, as well as in the MSCC_OCELOT_SWITCH_LIB
symbol itself to make it more obvious what is going on when the next
driver selects it.
Fixes: 3d7316ac81ac ("net: dsa: ocelot: add external ocelot switch control")
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Acked-by: Colin Foster <colin.foster@in-advantage.com>
Link: https://lore.kernel.org/r/20230209124435.1317781-1-arnd@kernel.org
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
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Use list_is_first() to check whether tsp->asoc matches the first
element of ep->asocs, as the list is not guaranteed to have an entry.
Fixes: 8f840e47f190 ("sctp: add the sctp_diag.c file")
Signed-off-by: Pietro Borrello <borrello@diag.uniroma1.it>
Acked-by: Xin Long <lucien.xin@gmail.com>
Link: https://lore.kernel.org/r/20230208-sctp-filter-v2-1-6e1f4017f326@diag.uniroma1.it
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
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In TI's AM62x/AM64x SoCs, successful teardown of RX DMA Channel raises an
interrupt. The process of servicing this interrupt involves flushing all
pending RX DMA descriptors and clearing the teardown completion marker
(TDCM). The am65_cpsw_nuss_rx_packets() function invoked from the RX
NAPI callback services the interrupt. Thus, it is necessary to wait for
this handler to run, drain all packets and clear TDCM, before calling
napi_disable() in am65_cpsw_nuss_common_stop() function post channel
teardown. If napi_disable() executes before ensuring that TDCM is
cleared, the TDCM remains set when the interfaces are down, resulting in
an interrupt storm when the interfaces are brought up again.
Since the interrupt raised to indicate the RX DMA Channel teardown is
specific to the AM62x and AM64x SoCs, add a quirk for it.
Fixes: 4f7cce272403 ("net: ethernet: ti: am65-cpsw: add support for am64x cpsw3g")
Co-developed-by: Vignesh Raghavendra <vigneshr@ti.com>
Signed-off-by: Vignesh Raghavendra <vigneshr@ti.com>
Signed-off-by: Siddharth Vadapalli <s-vadapalli@ti.com>
Reviewed-by: Roger Quadros <rogerq@kernel.org>
Link: https://lore.kernel.org/r/20230209084432.189222-1-s-vadapalli@ti.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
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Ido Schimmel says:
====================
bridge: mcast: Preparations for VXLAN MDB
This patchset contains small preparations for VXLAN MDB that were split
from this RFC [1]. Tested using existing bridge MDB forwarding
selftests.
[1] https://lore.kernel.org/netdev/20230204170801.3897900-1-idosch@nvidia.com/
====================
Link: https://lore.kernel.org/r/20230209071852.613102-1-idosch@nvidia.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
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The kernel maintains three markers for the MDB dump:
1. The last bridge device from which the MDB was dumped.
2. The last MDB entry from which the MDB was dumped.
3. The last port-group entry that was dumped.
Add test cases for large scale MDB dump to make sure that all the
configured entries are dumped and that the markers are used correctly.
Specifically, create 2 bridges with 32 ports and add 256 MDB entries in
which all the ports are member of. Test that each bridge reports 8192
(256 * 32) permanent entries. Do that with IPv4, IPv6 and L2 MDB
entries.
On my system, MDB dump of the above is contained in about 50 netlink
messages.
Example output:
# ./bridge_mdb.sh
[...]
INFO: # Large scale dump tests
TEST: IPv4 large scale dump tests [ OK ]
TEST: IPv6 large scale dump tests [ OK ]
TEST: L2 large scale dump tests [ OK ]
[...]
Signed-off-by: Ido Schimmel <idosch@nvidia.com>
Reviewed-by: Petr Machata <petrm@nvidia.com>
Acked-by: Nikolay Aleksandrov <razor@blackwall.org>
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
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Future patches are going to move parts of the bridge MDB code to the
common rtnetlink code in preparation for VXLAN MDB support. To
facilitate code sharing between both drivers, move the validation of the
top level attributes in RTM_{NEW,DEL}MDB messages to a policy that will
eventually be moved to the rtnetlink code.
Use 'NLA_NESTED' for 'MDBA_SET_ENTRY_ATTRS' instead of
NLA_POLICY_NESTED() as this attribute is going to be validated using
different policies in the underlying drivers.
Signed-off-by: Ido Schimmel <idosch@nvidia.com>
Acked-by: Nikolay Aleksandrov <razor@blackwall.org>
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
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The purpose of the sequence generation counter in the netlink callback
is to identify if a multipart dump is consistent or not by calling
nl_dump_check_consistent() whenever a message is generated.
The function is not invoked by the MDB code, rendering the sequence
generation counter assignment pointless. Remove it.
Note that even if the function was invoked, we still could not
accurately determine if the dump is consistent or not, as there is no
sequence generation counter for MDB entries, unlike nexthop objects, for
example.
Signed-off-by: Ido Schimmel <idosch@nvidia.com>
Acked-by: Nikolay Aleksandrov <razor@blackwall.org>
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
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'MDB_PG_FLAGS_PERMANENT' and 'MDB_PERMANENT' happen to have the same
value, but the latter is uAPI and cannot change, so use it when dumping
an MDB entry.
Signed-off-by: Ido Schimmel <idosch@nvidia.com>
Acked-by: Nikolay Aleksandrov <razor@blackwall.org>
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
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git://git.kernel.org/pub/scm/linux/kernel/git/bluetooth/bluetooth-next
Luiz Augusto von Dentz says:
====================
pull-request: bluetooth-next
- Add new PID/VID 0489:e0f2 for MT7921
- Add VID:PID 13d3:3529 for Realtek RTL8821CE
- Add CIS feature bits to controller information
- Set Per Platform Antenna Gain(PPAG) for Intel controllers
* tag 'for-net-next-2023-02-09' of git://git.kernel.org/pub/scm/linux/kernel/git/bluetooth/bluetooth-next:
Bluetooth: btintel: Set Per Platform Antenna Gain(PPAG)
Bluetooth: Make sure LE create conn cancel is sent when timeout
Bluetooth: Free potentially unfreed SCO connection
Bluetooth: hci_qca: get wakeup status from serdev device handle
Bluetooth: L2CAP: Fix potential user-after-free
Bluetooth: MGMT: add CIS feature bits to controller information
Bluetooth: hci_conn: Refactor hci_bind_bis() since it always succeeds
Bluetooth: HCI: Replace zero-length arrays with flexible-array members
Bluetooth: qca: Fix sparse warnings
Bluetooth: btusb: Add VID:PID 13d3:3529 for Realtek RTL8821CE
Bluetooth: btusb: Add new PID/VID 0489:e0f2 for MT7921
Bluetooth: Fix issue with Actions Semi ATS2851 based devices
====================
Link: https://lore.kernel.org/r/20230209234922.3756173-1-luiz.dentz@gmail.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
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Yafang Shao says:
====================
The bpf memory accouting has some known problems in contianer
environment,
- The container memory usage is not consistent if there's pinned bpf
program
After the container restart, the leftover bpf programs won't account
to the new generation, so the memory usage of the container is not
consistent. This issue can be resolved by introducing selectable
memcg, but we don't have an agreement on the solution yet. See also
the discussions at https://lwn.net/Articles/905150/ .
- The leftover non-preallocated bpf map can't be limited
The leftover bpf map will be reparented, and thus it will be limited by
the parent, rather than the container itself. Furthermore, if the
parent is destroyed, it be will limited by its parent's parent, and so
on. It can also be resolved by introducing selectable memcg.
- The memory dynamically allocated in bpf prog is charged into root memcg
only
Nowdays the bpf prog can dynamically allocate memory, for example via
bpf_obj_new(), but it only allocate from the global bpf_mem_alloc
pool, so it will charge into root memcg only. That needs to be
addressed by a new proposal.
So let's give the container user an option to disable bpf memory accouting.
The idea of "cgroup.memory=nobpf" is originally by Tejun[1].
[1]. https://lwn.net/ml/linux-mm/YxjOawzlgE458ezL@slm.duckdns.org/
Changes,
v1->v2:
- squash patches (Roman)
- commit log improvement in patch #2. (Johannes)
====================
Signed-off-by: Alexei Starovoitov <ast@kernel.org>
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We can simply disable the bpf prog memory accouting by not setting the
GFP_ACCOUNT.
Signed-off-by: Yafang Shao <laoar.shao@gmail.com>
Acked-by: Johannes Weiner <hannes@cmpxchg.org>
Acked-by: Roman Gushchin <roman.gushchin@linux.dev>
Link: https://lore.kernel.org/r/20230210154734.4416-5-laoar.shao@gmail.com
Signed-off-by: Alexei Starovoitov <ast@kernel.org>
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We can simply set root memcg as the map's memcg to disable bpf memory
accounting. bpf_map_area_alloc is a little special as it gets the memcg
from current rather than from the map, so we need to disable GFP_ACCOUNT
specifically for it.
Signed-off-by: Yafang Shao <laoar.shao@gmail.com>
Acked-by: Johannes Weiner <hannes@cmpxchg.org>
Acked-by: Roman Gushchin <roman.gushchin@linux.dev>
Link: https://lore.kernel.org/r/20230210154734.4416-4-laoar.shao@gmail.com
Signed-off-by: Alexei Starovoitov <ast@kernel.org>
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Introduce new helper bpf_map_kvcalloc() for the memory allocation in
bpf_local_storage(). Then the allocation will charge the memory from the
map instead of from current, though currently they are the same thing as
it is only used in map creation path now. By charging map's memory into
the memcg from the map, it will be more clear.
Signed-off-by: Yafang Shao <laoar.shao@gmail.com>
Acked-by: Johannes Weiner <hannes@cmpxchg.org>
Acked-by: Roman Gushchin <roman.gushchin@linux.dev>
Link: https://lore.kernel.org/r/20230210154734.4416-3-laoar.shao@gmail.com
Signed-off-by: Alexei Starovoitov <ast@kernel.org>
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Add new kernel parameter cgroup.memory=nobpf to allow user disable bpf
memory accounting. This is a preparation for the followup patch.
Signed-off-by: Yafang Shao <laoar.shao@gmail.com>
Acked-by: Johannes Weiner <hannes@cmpxchg.org>
Acked-by: Roman Gushchin <roman.gushchin@linux.dev>
Link: https://lore.kernel.org/r/20230210154734.4416-2-laoar.shao@gmail.com
Signed-off-by: Alexei Starovoitov <ast@kernel.org>
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Given BPF is increasingly being used beyond just the Linux kernel, with
implementations in NICs and other hardware, Windows, etc, there is an
ongoing effort to document and standardize parts of the existing BPF
infrastructure such as its ISA. As "source of truth" we decided some
time ago to rely on the in-tree documentation, in particular, starting
out with the Documentation/bpf/instruction-set.rst as a base for later
RFC drafts on the ISA. Therefore, we want to ensure that changes to that
document have bpf@ietf.org in Cc, so add a MAINTAINERS file entry with
a section on documents related to standardization efforts. For now, this
only relates to instruction-set.rst, and later additional files will be
added.
Signed-off-by: Daniel Borkmann <daniel@iogearbox.net>
Cc: Dave Thaler <dthaler@microsoft.com>
Cc: bpf@ietf.org
Link: https://datatracker.ietf.org/doc/bofreq-thaler-bpf-ebpf/
Link: https://lore.kernel.org/r/57619c0dd8e354d82bf38745f99405e3babdc970.1676068387.git.daniel@iogearbox.net
Signed-off-by: Alexei Starovoitov <ast@kernel.org>
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====================
pull-request: bpf-next 2023-02-11
We've added 96 non-merge commits during the last 14 day(s) which contain
a total of 152 files changed, 4884 insertions(+), 962 deletions(-).
There is a minor conflict in drivers/net/ethernet/intel/ice/ice_main.c
between commit 5b246e533d01 ("ice: split probe into smaller functions")
from the net-next tree and commit 66c0e13ad236 ("drivers: net: turn on
XDP features") from the bpf-next tree. Remove the hunk given ice_cfg_netdev()
is otherwise there a 2nd time, and add XDP features to the existing
ice_cfg_netdev() one:
[...]
ice_set_netdev_features(netdev);
netdev->xdp_features = NETDEV_XDP_ACT_BASIC | NETDEV_XDP_ACT_REDIRECT |
NETDEV_XDP_ACT_XSK_ZEROCOPY;
ice_set_ops(netdev);
[...]
Stephen's merge conflict mail:
https://lore.kernel.org/bpf/20230207101951.21a114fa@canb.auug.org.au/
The main changes are:
1) Add support for BPF trampoline on s390x which finally allows to remove many
test cases from the BPF CI's DENYLIST.s390x, from Ilya Leoshkevich.
2) Add multi-buffer XDP support to ice driver, from Maciej Fijalkowski.
3) Add capability to export the XDP features supported by the NIC.
Along with that, add a XDP compliance test tool,
from Lorenzo Bianconi & Marek Majtyka.
4) Add __bpf_kfunc tag for marking kernel functions as kfuncs,
from David Vernet.
5) Add a deep dive documentation about the verifier's register
liveness tracking algorithm, from Eduard Zingerman.
6) Fix and follow-up cleanups for resolve_btfids to be compiled
as a host program to avoid cross compile issues,
from Jiri Olsa & Ian Rogers.
7) Batch of fixes to the BPF selftest for xdp_hw_metadata which resulted
when testing on different NICs, from Jesper Dangaard Brouer.
8) Fix libbpf to better detect kernel version code on Debian, from Hao Xiang.
9) Extend libbpf to add an option for when the perf buffer should
wake up, from Jon Doron.
10) Follow-up fix on xdp_metadata selftest to just consume on TX
completion, from Stanislav Fomichev.
11) Extend the kfuncs.rst document with description on kfunc
lifecycle & stability expectations, from David Vernet.
12) Fix bpftool prog profile to skip attaching to offline CPUs,
from Tonghao Zhang.
====================
Link: https://lore.kernel.org/r/20230211002037.8489-1-daniel@iogearbox.net
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
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Correct spelling problems for Documentation/isdn/ as reported
by codespell.
Signed-off-by: Randy Dunlap <rdunlap@infradead.org>
Cc: Karsten Keil <isdn@linux-pingi.de>
Cc: Jonathan Corbet <corbet@lwn.net>
Link: https://lore.kernel.org/r/20230209071400.31476-9-rdunlap@infradead.org
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
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'net-move-more-duplicate-code-of-ovs-and-tc-conntrack-into-nf_conntrack_ovs'
Xin Long says:
====================
net: move more duplicate code of ovs and tc conntrack into nf_conntrack_ovs
We've moved some duplicate code into nf_nat_ovs in:
"net: eliminate the duplicate code in the ct nat functions of ovs and tc"
This patchset addresses more code duplication in the conntrack of ovs
and tc then creates nf_conntrack_ovs for them, and four functions will
be extracted and moved into it:
nf_ct_handle_fragments()
nf_ct_skb_network_trim()
nf_ct_helper()
nf_ct_add_helper()
====================
Link: https://lore.kernel.org/r/cover.1675810210.git.lucien.xin@gmail.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
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Now handle_fragments() in OVS and TC have the similar code, and
this patch removes the duplicate code by moving the function
to nf_conntrack_ovs.
Note that skb_clear_hash(skb) or skb->ignore_df = 1 should be
done only when defrag returns 0, as it does in other places
in kernel.
Signed-off-by: Xin Long <lucien.xin@gmail.com>
Reviewed-by: Simon Horman <simon.horman@corigine.com>
Reviewed-by: Aaron Conole <aconole@redhat.com>
Acked-by: Florian Westphal <fw@strlen.de>
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
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This patch has no functional changes and just moves frag check and
tc_skb_cb update out of handle_fragments, to make it easier to move
the duplicate code from handle_fragments() into nf_conntrack_ovs later.
Signed-off-by: Xin Long <lucien.xin@gmail.com>
Reviewed-by: Simon Horman <simon.horman@corigine.com>
Acked-by: Florian Westphal <fw@strlen.de>
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
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This patch has no functional changes and just moves key and ovs_cb update
out of handle_fragments, and skb_clear_hash() and skb->ignore_df change
into handle_fragments(), to make it easier to move the duplicate code
from handle_fragments() into nf_conntrack_ovs later.
Note that it changes to pass info->family to handle_fragments() instead
of key for the packet type check, as info->family is set according to
key->eth.type in ovs_ct_copy_action() when creating the action.
Signed-off-by: Xin Long <lucien.xin@gmail.com>
Reviewed-by: Simon Horman <simon.horman@corigine.com>
Reviewed-by: Aaron Conole <aconole@redhat.com>
Acked-by: Florian Westphal <fw@strlen.de>
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
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There are almost the same code in ovs_skb_network_trim() and
tcf_ct_skb_network_trim(), this patch extracts them into a function
nf_ct_skb_network_trim() and moves the function to nf_conntrack_ovs.
Signed-off-by: Xin Long <lucien.xin@gmail.com>
Reviewed-by: Simon Horman <simon.horman@corigine.com>
Reviewed-by: Aaron Conole <aconole@redhat.com>
Acked-by: Florian Westphal <fw@strlen.de>
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
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Similar to nf_nat_ovs created by Commit ebddb1404900 ("net: move the
nat function to nf_nat_ovs for ovs and tc"), this patch is to create
nf_conntrack_ovs to get these functions shared by OVS and TC only.
There are nf_ct_helper() and nf_ct_add_helper() from nf_conntrak_helper
in this patch, and will be more in the following patches.
Signed-off-by: Xin Long <lucien.xin@gmail.com>
Reviewed-by: Simon Horman <simon.horman@corigine.com>
Reviewed-by: Aaron Conole <aconole@redhat.com>
Acked-by: Florian Westphal <fw@strlen.de>
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
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To pick up depended-upon changes
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git://git.kernel.org/pub/scm/linux/kernel/git/clk/linux
Pull clk fixes from Stephen Boyd:
"Two clk driver fixes
- Use devm_kasprintf() to avoid overflows when forming clk names in
the Microchip PolarFire driver
- Fix the pretty broken Ingenic JZ4760 M/N/OD calculation to actually
work and find proper divisors"
* tag 'clk-fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/clk/linux:
clk: ingenic: jz4760: Update M/N/OD calculation algorithm
clk: microchip: mpfs-ccc: Use devm_kasprintf() for allocating formatted strings
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The code assumes that everything that comes after nlmsgerr are nlattrs.
When calculating their size, it does not account for the initial
nlmsghdr. This may lead to accessing uninitialized memory.
Fixes: bbf48c18ee0c ("libbpf: add error reporting in XDP")
Signed-off-by: Ilya Leoshkevich <iii@linux.ibm.com>
Signed-off-by: Andrii Nakryiko <andrii@kernel.org>
Link: https://lore.kernel.org/bpf/20230210001210.395194-8-iii@linux.ibm.com
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malloc() and free() may be completely replaced by sanitizers, use
fopen() and fclose() instead.
Signed-off-by: Ilya Leoshkevich <iii@linux.ibm.com>
Signed-off-by: Andrii Nakryiko <andrii@kernel.org>
Link: https://lore.kernel.org/bpf/20230210001210.395194-7-iii@linux.ibm.com
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malloc() and free() may be completely replaced by sanitizers, use
fopen() and fclose() instead.
Signed-off-by: Ilya Leoshkevich <iii@linux.ibm.com>
Signed-off-by: Andrii Nakryiko <andrii@kernel.org>
Link: https://lore.kernel.org/bpf/20230210001210.395194-6-iii@linux.ibm.com
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To get useful results from the Memory Sanitizer, all code running in a
process needs to be instrumented. When building tests with other
sanitizers, it's not strictly necessary, but is also helpful.
So make sure runqslower and libbpf are compiled with SAN_CFLAGS and
linked with SAN_LDFLAGS.
Signed-off-by: Ilya Leoshkevich <iii@linux.ibm.com>
Signed-off-by: Andrii Nakryiko <andrii@kernel.org>
Link: https://lore.kernel.org/bpf/20230210001210.395194-5-iii@linux.ibm.com
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Memory Sanitizer requires passing different options to CFLAGS and
LDFLAGS: besides the mandatory -fsanitize=memory, one needs to pass
header and library paths, and passing -L to a compilation step
triggers -Wunused-command-line-argument. So introduce a separate
variable for linker flags. Use $(SAN_CFLAGS) as a default in order to
avoid complicating the ASan usage.
Signed-off-by: Ilya Leoshkevich <iii@linux.ibm.com>
Signed-off-by: Andrii Nakryiko <andrii@kernel.org>
Link: https://lore.kernel.org/bpf/20230210001210.395194-4-iii@linux.ibm.com
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This makes it possible to add sanitizer flags.
Signed-off-by: Ilya Leoshkevich <iii@linux.ibm.com>
Signed-off-by: Andrii Nakryiko <andrii@kernel.org>
Link: https://lore.kernel.org/bpf/20230210001210.395194-3-iii@linux.ibm.com
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Using HOSTCC="ccache clang" breaks building the tests, since, when it's
forwarded to e.g. bpftool, the child make sees HOSTCC=ccache and
"clang" is considered a target. Fix by quoting it, and also HOSTLD and
HOSTAR for consistency.
Signed-off-by: Ilya Leoshkevich <iii@linux.ibm.com>
Signed-off-by: Andrii Nakryiko <andrii@kernel.org>
Link: https://lore.kernel.org/bpf/20230210001210.395194-2-iii@linux.ibm.com
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git://git.kernel.org/pub/scm/linux/kernel/git/linusw/linux-pinctrl
Pull pin control fixes from Linus Walleij:
"Some assorted pin control fixes, the most interesting will be the
Intel patch fixing a classic problem: laptop touchpad IRQs...
- Some pin drive register fixes in the Mediatek driver.
- Return proper error code in the Aspeed driver, and revert and
ill-advised force-disablement patch that needs to be reworked.
- Fix AMD driver debug output.
- Fix potential NULL dereference in the Single driver.
- Fix a group definition error in the Qualcomm SM8450 LPASS driver.
- Restore pins used in direct IRQ mode in the Intel driver (This
fixes some laptop touchpads!)"
* tag 'pinctrl-v6.2-3' of git://git.kernel.org/pub/scm/linux/kernel/git/linusw/linux-pinctrl:
pinctrl: intel: Restore the pins that used to be in Direct IRQ mode
pinctrl: qcom: sm8450-lpass-lpi: correct swr_rx_data group
pinctrl: aspeed: Revert "Force to disable the function's signal"
pinctrl: single: fix potential NULL dereference
pinctrl: amd: Fix debug output for debounce time
pinctrl: aspeed: Fix confusing types in return value
pinctrl: mediatek: Fix the drive register definition of some Pins
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fadvise and madvise both provide hints for caching or access pattern for
file and memory respectively. Skip them.
Fixes: 5bd2182d58e9 ("audit,io_uring,io-wq: add some basic audit support to io_uring")
Signed-off-by: Richard Guy Briggs <rgb@redhat.com>
Link: https://lore.kernel.org/r/b5dfdcd541115c86dbc774aa9dd502c964849c5f.1675282642.git.rgb@redhat.com
Acked-by: Paul Moore <paul@paul-moore.com>
Signed-off-by: Jens Axboe <axboe@kernel.dk>
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Add support for the new i2c_pull property introduced for SM8550 setting
a I2C specific pull mode on I2C able pins. Add the bit to the SM8550
specific driver while at it.
Co-developed-by: Neil Armstrong <neil.armstrong@linaro.org>
Signed-off-by: Neil Armstrong <neil.armstrong@linaro.org>
Signed-off-by: Abel Vesa <abel.vesa@linaro.org>
Reviewed-by: Bjorn Andersson <andersson@kernel.org>
Link: https://lore.kernel.org/r/20230209074510.4153294-1-abel.vesa@linaro.org
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
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Add pinctrl driver for StarFive JH7110 SoC aon pinctrl controller.
Co-developed-by: Emil Renner Berthing <kernel@esmil.dk>
Signed-off-by: Emil Renner Berthing <kernel@esmil.dk>
Signed-off-by: Jianlong Huang <jianlong.huang@starfivetech.com>
Signed-off-by: Hal Feng <hal.feng@starfivetech.com>
Link: https://lore.kernel.org/r/20230209143702.44408-5-hal.feng@starfivetech.com
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
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Add pinctrl driver for StarFive JH7110 SoC sys pinctrl controller.
Co-developed-by: Emil Renner Berthing <kernel@esmil.dk>
Signed-off-by: Emil Renner Berthing <kernel@esmil.dk>
Signed-off-by: Jianlong Huang <jianlong.huang@starfivetech.com>
Signed-off-by: Hal Feng <hal.feng@starfivetech.com>
Link: https://lore.kernel.org/r/20230209143702.44408-4-hal.feng@starfivetech.com
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
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Add pinctrl bindings for StarFive JH7110 SoC aon pinctrl controller.
Reviewed-by: Rob Herring <robh@kernel.org>
Signed-off-by: Jianlong Huang <jianlong.huang@starfivetech.com>
Co-developed-by: Emil Renner Berthing <kernel@esmil.dk>
Signed-off-by: Emil Renner Berthing <kernel@esmil.dk>
Signed-off-by: Hal Feng <hal.feng@starfivetech.com>
Link: https://lore.kernel.org/r/20230209143702.44408-3-hal.feng@starfivetech.com
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
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Add pinctrl bindings for StarFive JH7110 SoC sys pinctrl controller.
Reviewed-by: Rob Herring <robh@kernel.org>
Signed-off-by: Jianlong Huang <jianlong.huang@starfivetech.com>
Co-developed-by: Emil Renner Berthing <kernel@esmil.dk>
Signed-off-by: Emil Renner Berthing <kernel@esmil.dk>
Signed-off-by: Hal Feng <hal.feng@starfivetech.com>
Link: https://lore.kernel.org/r/20230209143702.44408-2-hal.feng@starfivetech.com
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
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git://git.kernel.org/pub/scm/linux/kernel/git/pci/pci
Pull PCI fixes from Bjorn Helgaas:
- Move to a shared PCI git tree (Bjorn Helgaas)
- Add Krzysztof Wilczyński as another PCI maintainer (Lorenzo
Pieralisi)
- Revert a couple ASPM patches to fix suspend/resume regressions (Bjorn
Helgaas)
* tag 'pci-v6.2-fixes-2' of git://git.kernel.org/pub/scm/linux/kernel/git/pci/pci:
Revert "PCI/ASPM: Refactor L1 PM Substates Control Register programming"
Revert "PCI/ASPM: Save L1 PM Substates Capability for suspend/resume"
MAINTAINERS: Promote Krzysztof to PCI controller maintainer
MAINTAINERS: Move to shared PCI tree
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The driver and device tree doc were originally authored by Jonas Gorski
and it has been updated from Broadcom recently including the dts yaml
file and a new driver for the updated controller. Add Jonas Gorski and
Broadcom engineers William Zhang and Kursad Oney as the maintainers.
Signed-off-by: William Zhang <william.zhang@broadcom.com>
Acked-by: Florian Fainelli <f.fainelli@gmail.com>
Link: https://lore.kernel.org/r/20230209200246.141520-16-william.zhang@broadcom.com
Signed-off-by: Mark Brown <broonie@kernel.org>
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The newer BCMBCA SoCs such as BCM6756, BCM4912 and BCM6855 include an
updated SPI controller that add the capability to allow the driver to
control chip select explicitly. Driver can control and keep cs low
between the transfers natively. Hence the dummy cs workaround or prepend
mode found in the bcm63xx-hsspi driver are no longer needed and this new
driver is much cleaner.
Signed-off-by: William Zhang <william.zhang@broadcom.com>
Link: https://lore.kernel.org/r/20230209200246.141520-15-william.zhang@broadcom.com
Signed-off-by: Mark Brown <broonie@kernel.org>
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In general the controller supports SPI dual mode operation but the
particular SPI flash dual io read op switches from single mode in cmd
phase to dual mode in address and data phase. This is not compatible
with prepend operation where cmd and address are sent out through the
prepend buffer and they must use same the number of io pins.
This patch disables these SPI flash dual io read ops through the mem_ops
supports_op interface. This makes sure the SPI flash driver selects the
compatible read ops at run time.
Signed-off-by: William Zhang <william.zhang@broadcom.com>
Link: https://lore.kernel.org/r/20230209200246.141520-14-william.zhang@broadcom.com
Signed-off-by: Mark Brown <broonie@kernel.org>
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Currently exec_op is always required if controller driver provides
mem_ops. But some controller such as bcm63xx-hsspi may only need to
implement other operation like supports_op and use the default
execution operation. This patch removes this restriction.
Signed-off-by: William Zhang <william.zhang@broadcom.com>
Link: https://lore.kernel.org/r/20230209200246.141520-13-william.zhang@broadcom.com
Signed-off-by: Mark Brown <broonie@kernel.org>
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Due to the controller limitation to keep the chip select low during the
bus idle time between the transfer, a dummy cs workaround was used when
this driver was first upstreamed to the kernel. It basically picks the
dummy cs as !actual_cs so typically dummy cs is 1 when most of the case
only cs 0 is used in the board design. Then invert the polarity of both
cs and tell the controller to start the transfers using dummy cs.
Assuming both cs are active low before the inversion, effectively this
keeps dummy cs high and actual cs low during the transfer and workaround
the issue.
This workaround implies that dummy cs 1 pin has to be set to chip
selection function in the pinmux when the transfer clock is above
25MHz. The old chips likely have default pinmux set to chip select on
the dummy cs pin so it works but this is not case for the new Broadband
BCA chips and this workaround stop working. This is specifically an
issue to support SPI NAND and SPI NOR flash because these flash devices
can typically run at or above 100MHz.
This patch utilizes the prepend feature of the controller to combine the
multiple transfers in the same message to a single transfer when
possible. This way there is no need to keep clock low between transfers
and solve the issue without any hardware requirement.
Multiple transfers within a SPI message may be combined into one
transfer if the following are all true:
* One or more half duplex write transfer in single bit mode
* Optional full duplex read/write at the end
* No delay and cs_change between transfers
Most of the SPI device meets this requirements such as SPI NOR,
SPI NAND flash, Broadcom SPI voice card and etc. For any SPI message
that does not meet the above requirement to combine the transfers, we
switch to original dummy cs mode but limit the clock rate to the safe
25MHz. This is the default auto transfer mode and it makes sure all the
SPI message can be supported automatically under the hood.
This patch also adds the driver sysfs node xfer_mode to provide
the option for overriding the default auto mode and force it to dummy cs
or prepend mode.
Signed-off-by: William Zhang <william.zhang@broadcom.com>
Link: https://lore.kernel.org/r/20230209200246.141520-12-william.zhang@broadcom.com
Signed-off-by: Mark Brown <broonie@kernel.org>
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Currently the driver always sets the controller to dual data bit mode
for both tx and rx data in the profile mode control register even for
single data bit transfer. Luckily the opcode is set correctly according
to SPI transfer data bit width so it does not actually cause issues.
This change fixes the problem by setting tx and rx data bit mode field
correctly according to the actual SPI transfer tx and rx data bit width.
Fixes: 142168eba9dc ("spi: bcm63xx-hsspi: add bcm63xx HSSPI driver")
Signed-off-by: William Zhang <william.zhang@broadcom.com>
Link: https://lore.kernel.org/r/20230209200246.141520-11-william.zhang@broadcom.com
Signed-off-by: Mark Brown <broonie@kernel.org>
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The kernel SPI interface includes the cs_change flag that alters how
the CS behaves.
If we're in the middle of transfers, it tells us to unselect the
CS momentarily since the target device requires that.
If we're at the end of a transfer, it tells us to keep the CS
selected, perhaps because the next transfer is likely targeted
to the same device.
We implement this scheme in the HSSPI driver in this change.
Prior to this change, the CS would toggle momentarily if cs_change
was set for the last transfer. This can be ignored by some or
most devices, but the Microchip TPM2 device does not ignore it.
With the change, the behavior is corrected and the 'glitch' is
eliminated.
Signed-off-by: Kursad Oney <kursad.oney@broadcom.com>
Signed-off-by: William Zhang <william.zhang@broadcom.com>
Link: https://lore.kernel.org/r/20230209200246.141520-10-william.zhang@broadcom.com
Signed-off-by: Mark Brown <broonie@kernel.org>
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For SPI controller that implements transfer_one_message, it needs to
insert the delay that required by cs change event between the transfers.
Add a wrapper for the local function _spi_transfer_cs_change_delay_exec
and export it for SPI controller driver to use.
Signed-off-by: William Zhang <william.zhang@broadcom.com>
Link: https://lore.kernel.org/r/20230209200246.141520-9-william.zhang@broadcom.com
Signed-off-by: Mark Brown <broonie@kernel.org>
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