sphinx complains about the use of "%PHYLINK_PCS_NEG_*":
Documentation/networking/kapi:144: ./include/linux/phylink.h:601: WARNING: Inline literal start-string without end-string.
Documentation/networking/kapi:144: ./include/linux/phylink.h:633: WARNING: Inline literal start-string without end-string.
These are not valid symbols so drop the '%' prefix.
Alternatively we could use %PHYLINK_PCS_NEG_\* (escape the *)
or use normal literal ``PHYLINK_PCS_NEG_*`` but there is already
a handful of un-adorned DEFINE_* in this file.
Fixes: f99d471afa ("net: phylink: add PCS negotiation mode")
Reported-by: Stephen Rothwell <sfr@canb.auug.org.au>
Link: https://lore.kernel.org/all/20230626162908.2f149f98@canb.auug.org.au/
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Reviewed-by: Bagas Sanjaya <bagasdotme@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Vladimir Oltean says:
====================
tc-cbs offload fixes for SJA1105 DSA
Yanan Yang has pointed out to me that certain tc-cbs offloaded
configurations do not appear to do any shaping on the LS1021A-TSN board
(SJA1105T).
This is due to an apparent documentation error that also made its way
into the driver, which patch 1/3 now fixes.
While investigating and then testing, I've found 2 more bugs, which are
patches 2/3 and 3/3.
====================
Signed-off-by: David S. Miller <davem@davemloft.net>
The blamed commit left this delta behind:
struct sja1105_cbs_entry {
- u64 port;
- u64 prio;
+ u64 port; /* Not used for SJA1110 */
+ u64 prio; /* Not used for SJA1110 */
u64 credit_hi;
u64 credit_lo;
u64 send_slope;
u64 idle_slope;
};
but did not actually implement tc-cbs offload fully for the new switch.
The offload is accepted, but it doesn't work.
The difference compared to earlier switch generations is that now, the
table of CBS shapers is sparse, because there are many more shapers, so
the mapping between a {port, prio} and a table index is static, rather
than requiring us to store the port and prio into the sja1105_cbs_entry.
So, the problem is that the code programs the CBS shaper parameters at a
dynamic table index which is incorrect.
All that needs to be done for SJA1110 CBS shapers to work is to bypass
the logic which allocates shapers in a dense manner, as for SJA1105, and
use the fixed mapping instead.
Fixes: 3e77e59bf8 ("net: dsa: sja1105: add support for the SJA1110 switch family")
Signed-off-by: Vladimir Oltean <vladimir.oltean@nxp.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
After running command [2] too many times in a row:
[1] $ tc qdisc add dev sw2p0 root handle 1: mqprio num_tc 8 \
map 0 1 2 3 4 5 6 7 queues 1@0 1@1 1@2 1@3 1@4 1@5 1@6 1@7 hw 0
[2] $ tc qdisc replace dev sw2p0 parent 1:1 cbs offload 1 \
idleslope 120000 sendslope -880000 locredit -1320 hicredit 180
(aka more than priv->info->num_cbs_shapers times)
we start seeing the following error message:
Error: Specified device failed to setup cbs hardware offload.
This comes from the fact that ndo_setup_tc(TC_SETUP_QDISC_CBS) presents
the same API for the qdisc create and replace cases, and the sja1105
driver fails to distinguish between the 2. Thus, it always thinks that
it must allocate the same shaper for a {port, queue} pair, when it may
instead have to replace an existing one.
Fixes: 4d7525085a ("net: dsa: sja1105: offload the Credit-Based Shaper qdisc")
Signed-off-by: Vladimir Oltean <vladimir.oltean@nxp.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
More careful measurement of the tc-cbs bandwidth shows that the stream
bandwidth (effectively idleslope) increases, there is a larger and
larger discrepancy between the rate limit obtained by the software
Qdisc, and the rate limit obtained by its offloaded counterpart.
The discrepancy becomes so large, that e.g. at an idleslope of 40000
(40Mbps), the offloaded cbs does not actually rate limit anything, and
traffic will pass at line rate through a 100 Mbps port.
The reason for the discrepancy is that the hardware documentation I've
been following is incorrect. UM11040.pdf (for SJA1105P/Q/R/S) states
about IDLE_SLOPE that it is "the rate (in unit of bytes/sec) at which
the credit counter is increased".
Cross-checking with UM10944.pdf (for SJA1105E/T) and UM11107.pdf
(for SJA1110), the wording is different: "This field specifies the
value, in bytes per second times link speed, by which the credit counter
is increased".
So there's an extra scaling for link speed that the driver is currently
not accounting for, and apparently (empirically), that link speed is
expressed in Kbps.
I've pondered whether to pollute the sja1105_mac_link_up()
implementation with CBS shaper reprogramming, but I don't think it is
worth it. IMO, the UAPI exposed by tc-cbs requires user space to
recalculate the sendslope anyway, since the formula for that depends on
port_transmit_rate (see man tc-cbs), which is not an invariant from tc's
perspective.
So we use the offload->sendslope and offload->idleslope to deduce the
original port_transmit_rate from the CBS formula, and use that value to
scale the offload->sendslope and offload->idleslope to values that the
hardware understands.
Some numerical data points:
40Mbps stream, max interfering frame size 1500, port speed 100M
---------------------------------------------------------------
tc-cbs parameters:
idleslope 40000 sendslope -60000 locredit -900 hicredit 600
which result in hardware values:
Before (doesn't work) After (works)
credit_hi 600 600
credit_lo 900 900
send_slope 7500000 75
idle_slope 5000000 50
40Mbps stream, max interfering frame size 1500, port speed 1G
-------------------------------------------------------------
tc-cbs parameters:
idleslope 40000 sendslope -960000 locredit -1440 hicredit 60
which result in hardware values:
Before (doesn't work) After (works)
credit_hi 60 60
credit_lo 1440 1440
send_slope 120000000 120
idle_slope 5000000 5
5.12Mbps stream, max interfering frame size 1522, port speed 100M
-----------------------------------------------------------------
tc-cbs parameters:
idleslope 5120 sendslope -94880 locredit -1444 hicredit 77
which result in hardware values:
Before (doesn't work) After (works)
credit_hi 77 77
credit_lo 1444 1444
send_slope 11860000 118
idle_slope 640000 6
Tested on SJA1105T, SJA1105S and SJA1110A, at 1Gbps and 100Mbps.
Fixes: 4d7525085a ("net: dsa: sja1105: offload the Credit-Based Shaper qdisc")
Reported-by: Yanan Yang <yanan.yang@nxp.com>
Signed-off-by: Vladimir Oltean <vladimir.oltean@nxp.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Tony Nguyen says:
====================
Change MIN_TXD and MIN_RXD to allow set rx/tx value between 64 and 80
Olga Zaborska says:
Change the minimum value of RX/TX descriptors to 64 to enable setting the rx/tx
value between 64 and 80. All igb, igbvf and igc devices can use as low as 64
descriptors.
====================
Signed-off-by: David S. Miller <davem@davemloft.net>
ACL flow table is required in switchdev mode when metadata is enabled,
driver creates such table when loading each vport. However, not every
vport is loaded in switchdev mode. Such as ECPF if it's the eswitch manager.
In this case, ACL flow table is still needed.
To make it modularized, create ACL flow table for eswitch manager as
default and skip such operations when loading manager vport.
Also, there is no need to load the eswitch manager vport in switchdev mode.
This means there is no need to load it on regular connect-x HCAs where
the PF is the eswitch manager. This will avoid creating duplicate ACL
flow table for host PF vport.
Fixes: 29bcb6e4fe ("net/mlx5e: E-Switch, Use metadata for vport matching in send-to-vport rules")
Fixes: eb8e9fae0a ("mlx5/core: E-Switch, Allocate ECPF vport if it's an eswitch manager")
Fixes: 5019833d66 ("net/mlx5: E-switch, Introduce helper function to enable/disable vports")
Signed-off-by: Bodong Wang <bodong@nvidia.com>
Reviewed-by: Mark Bloch <mbloch@nvidia.com>
Signed-off-by: Saeed Mahameed <saeedm@nvidia.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
In the cited commit, the mirred devices are recorded and checked while
parsing the actions. In order to avoid system crash, the duplicate
action in a single rule is not allowed.
But the rule is actually break down into several FTEs in different
tables, for either mirroring, or the specified types of actions which
use post action infrastructure.
It will reject certain action list by mistake, for example:
actions:enp8s0f0_1,set(ipv4(ttl=63)),enp8s0f0_0,enp8s0f0_1.
Here the rule is split to two FTEs because of pedit action.
To fix this issue, when parsing the rule actions, reset if_count to
clear the mirred devices array if the rule is split to multiple
FTEs, and then the duplicate checking is restarted.
Fixes: 554fe75c1b ("net/mlx5e: Avoid duplicating rule destinations")
Signed-off-by: Jianbo Liu <jianbol@nvidia.com>
Reviewed-by: Vlad Buslov <vladbu@nvidia.com>
Signed-off-by: Saeed Mahameed <saeedm@nvidia.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
team interface has used a dynamic lockdep key to avoid false-positive
lockdep deadlock detection. Virtual interfaces such as team usually
have their own lock for protecting private data.
These interfaces can be nested.
team0
|
team1
Each interface's lock is actually different(team0->lock and team1->lock).
So,
mutex_lock(&team0->lock);
mutex_lock(&team1->lock);
mutex_unlock(&team1->lock);
mutex_unlock(&team0->lock);
The above case is absolutely safe. But lockdep warns about deadlock.
Because the lockdep understands these two locks are same. This is a
false-positive lockdep warning.
So, in order to avoid this problem, the team interfaces started to use
dynamic lockdep key. The false-positive problem was fixed, but it
introduced a new problem.
When the new team virtual interface is created, it registers a dynamic
lockdep key(creates dynamic lockdep key) and uses it. But there is the
limitation of the number of lockdep keys.
So, If so many team interfaces are created, it consumes all lockdep keys.
Then, the lockdep stops to work and warns about it.
In order to fix this problem, team interfaces use the subclass instead
of the dynamic key. So, when a new team interface is created, it doesn't
register(create) a new lockdep, but uses existed subclass key instead.
It is already used by the bonding interface for a similar case.
As the bonding interface does, the subclass variable is the same as
the 'dev->nested_level'. This variable indicates the depth in the stacked
interface graph.
The 'dev->nested_level' is protected by RTNL and RCU.
So, 'mutex_lock_nested()' for 'team->lock' requires RTNL or RCU.
In the current code, 'team->lock' is usually acquired under RTNL, there is
no problem with using 'dev->nested_level'.
The 'team_nl_team_get()' and The 'lb_stats_refresh()' functions acquire
'team->lock' without RTNL.
But these don't iterate their own ports nested so they don't need nested
lock.
Reproducer:
for i in {0..1000}
do
ip link add team$i type team
ip link add dummy$i master team$i type dummy
ip link set dummy$i up
ip link set team$i up
done
Splat looks like:
BUG: MAX_LOCKDEP_ENTRIES too low!
turning off the locking correctness validator.
Please attach the output of /proc/lock_stat to the bug report
CPU: 0 PID: 4104 Comm: ip Not tainted 6.5.0-rc7+ #45
Call Trace:
<TASK>
dump_stack_lvl+0x64/0xb0
add_lock_to_list+0x30d/0x5e0
check_prev_add+0x73a/0x23a0
...
sock_def_readable+0xfe/0x4f0
netlink_broadcast+0x76b/0xac0
nlmsg_notify+0x69/0x1d0
dev_open+0xed/0x130
...
Reported-by: syzbot+9bbbacfbf1e04d5221f7@syzkaller.appspotmail.com
Fixes: 369f61bee0 ("team: fix nested locking lockdep warning")
Signed-off-by: Taehee Yoo <ap420073@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
__skb_get_hash_symmetric() was added to compute a symmetric hash over
the protocol, addresses and transport ports, by commit eb70db8756
("packet: Use symmetric hash for PACKET_FANOUT_HASH."). It uses
flow_keys_dissector_symmetric_keys as the flow_dissector to incorporate
IPv4 addresses, IPv6 addresses and ports. However, it should not specify
the flag as FLOW_DISSECTOR_F_STOP_AT_FLOW_LABEL, which stops further
dissection when an IPv6 flow label is encountered, making transport
ports not being incorporated in such case.
As a consequence, the symmetric hash is based on 5-tuple for IPv4 but
3-tuple for IPv6 when flow label is present. It caused a few problems,
e.g. when nft symhash and openvswitch l4_sym rely on the symmetric hash
to perform load balancing as different L4 flows between two given IPv6
addresses would always get the same symmetric hash, leading to uneven
traffic distribution.
Removing the use of FLOW_DISSECTOR_F_STOP_AT_FLOW_LABEL makes sure the
symmetric hash is based on 5-tuple for both IPv4 and IPv6 consistently.
Fixes: eb70db8756 ("packet: Use symmetric hash for PACKET_FANOUT_HASH.")
Reported-by: Lars Ekman <uablrek@gmail.com>
Closes: https://github.com/antrea-io/antrea/issues/5457
Signed-off-by: Quan Tian <qtian@vmware.com>
Reviewed-by: Eric Dumazet <edumazet@google.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
We can now use arm64 functions to handle the move of the kernel physical
mapping: if KASLR is enabled, we will try to get a random seed from the
firmware, if not possible, the kernel will be moved to a location that
suits its alignment constraints.
Signed-off-by: Alexandre Ghiti <alexghiti@rivosinc.com>
Tested-by: Conor Dooley <conor.dooley@microchip.com>
Tested-by: Song Shuai <songshuaishuai@tinylab.org>
Reviewed-by: Sami Tolvanen <samitolvanen@google.com>
Tested-by: Sami Tolvanen <samitolvanen@google.com>
Link: https://lore.kernel.org/r/20230722123850.634544-6-alexghiti@rivosinc.com
Signed-off-by: Palmer Dabbelt <palmer@rivosinc.com>
Fix the following warning which appears when compiled for rv32 by using
unsigned long type instead of u64.
../drivers/firmware/efi/libstub/efi-stub-helper.c: In function 'efi_kaslr_relocate_kernel':
../drivers/firmware/efi/libstub/efi-stub-helper.c:846:28: warning: cast from pointer to integer of different size [-Wpointer-to-int-cast]
846 | (u64)_end < EFI_ALLOC_LIMIT) {
Signed-off-by: Alexandre Ghiti <alexghiti@rivosinc.com>
Acked-by: Ard Biesheuvel <ardb@kernel.org>
Tested-by: Conor Dooley <conor.dooley@microchip.com>
Tested-by: Song Shuai <songshuaishuai@tinylab.org>
Reviewed-by: Sami Tolvanen <samitolvanen@google.com>
Tested-by: Sami Tolvanen <samitolvanen@google.com>
Link: https://lore.kernel.org/r/20230722123850.634544-5-alexghiti@rivosinc.com
Signed-off-by: Palmer Dabbelt <palmer@rivosinc.com>
This prepares for riscv to use the same functions to handle the pĥysical
kernel move when KASLR is enabled.
Signed-off-by: Alexandre Ghiti <alexghiti@rivosinc.com>
Acked-by: Ard Biesheuvel <ardb@kernel.org>
Tested-by: Conor Dooley <conor.dooley@microchip.com>
Tested-by: Song Shuai <songshuaishuai@tinylab.org>
Reviewed-by: Sami Tolvanen <samitolvanen@google.com>
Tested-by: Sami Tolvanen <samitolvanen@google.com>
Link: https://lore.kernel.org/r/20230722123850.634544-4-alexghiti@rivosinc.com
Signed-off-by: Palmer Dabbelt <palmer@rivosinc.com>
Dump out the KASLR virtual kernel offset when panic to help debug kernel.
Signed-off-by: Zong Li <zong.li@sifive.com>
Signed-off-by: Alexandre Ghiti <alexghiti@rivosinc.com>
Tested-by: Conor Dooley <conor.dooley@microchip.com>
Tested-by: Song Shuai <songshuaishuai@tinylab.org>
Reviewed-by: Sami Tolvanen <samitolvanen@google.com>
Tested-by: Sami Tolvanen <samitolvanen@google.com>
Link: https://lore.kernel.org/r/20230722123850.634544-3-alexghiti@rivosinc.com
Signed-off-by: Palmer Dabbelt <palmer@rivosinc.com>
KASLR implementation relies on a relocatable kernel so that we can move
the kernel mapping.
The seed needed to virtually move the kernel is taken from the device tree,
so we rely on the bootloader to provide a correct seed. Zkr could be used
unconditionnally instead if implemented, but that's for another patch.
Signed-off-by: Alexandre Ghiti <alexghiti@rivosinc.com>
Tested-by: Conor Dooley <conor.dooley@microchip.com>
Tested-by: Song Shuai <songshuaishuai@tinylab.org>
Reviewed-by: Sami Tolvanen <samitolvanen@google.com>
Tested-by: Sami Tolvanen <samitolvanen@google.com>
Link: https://lore.kernel.org/r/20230722123850.634544-2-alexghiti@rivosinc.com
Signed-off-by: Palmer Dabbelt <palmer@rivosinc.com>
The "maxim,ds3231" compatible is described in the rtc-ds1307.yaml, so
there is no need to keep the text bindings version.
Remove the maxim,ds3231.txt file in favor of the rtc-ds1307.yaml binding.
Signed-off-by: Fabio Estevam <festevam@denx.de>
Acked-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
Link: https://lore.kernel.org/r/20230902134407.2589099-1-festevam@gmail.com
Signed-off-by: Alexandre Belloni <alexandre.belloni@bootlin.com>
The RTC core already prints a message when the RTC is registered and when
registering fails, it is not necessary to have more in the driver.
Acked-by: Charles Keepax <ckeepax@opensource.cirrus.com>
Link: https://lore.kernel.org/r/20230827221643.544259-3-alexandre.belloni@bootlin.com
Signed-off-by: Alexandre Belloni <alexandre.belloni@bootlin.com>
The core already print a message once the rtc is successfully registered,
it is not necessary to print an other one.
Acked-by: Jernej Skrabec <jernej.skrabec@gmail.com>
Link: https://lore.kernel.org/r/20230827221643.544259-1-alexandre.belloni@bootlin.com
Signed-off-by: Alexandre Belloni <alexandre.belloni@bootlin.com>
When the alarm is not enabled, it may never have been set and so we can't
expect it to be valid. This will prevent the apparition of boot messages
like this one:
rtc rtc0: invalid alarm value: 2023-7-8 45:85:85
Link: https://lore.kernel.org/r/20230827221532.543353-1-alexandre.belloni@bootlin.com
Signed-off-by: Alexandre Belloni <alexandre.belloni@bootlin.com>
I3C masters are expected to support hot-join. This means at initialization
time we might not yet discover any device and this should not be treated
as a fatal error.
During the DAA procedure which happens at probe time, if no device has
joined, all CCC will be NACKed (from a bus perspective). This leads to an
early return with an error code which fails the probe of the master.
Let's avoid this by just telling the core through an I3C_ERROR_M2
return command code that no device was discovered, which is a valid
situation. This way the master will no longer bail out and fail to probe
for a wrong reason.
Cc: stable@vger.kernel.org
Fixes: dd3c52846d ("i3c: master: svc: Add Silvaco I3C master driver")
Signed-off-by: Frank Li <Frank.Li@nxp.com>
Acked-by: Miquel Raynal <miquel.raynal@bootlin.com>
Link: https://lore.kernel.org/r/20230831141324.2841525-1-Frank.Li@nxp.com
Signed-off-by: Alexandre Belloni <alexandre.belloni@bootlin.com>
The relevant parameter is 'start' and not 'nextid'
Fixes: 460488c58c ("idr: Remove idr_alloc_ext")
Signed-off-by: Ariel Marcovitch <arielmarcovitch@gmail.com>
Signed-off-by: Matthew Wilcox (Oracle) <willy@infradead.org>
Adds a new line to the docstrings of functions wrapping __xa_alloc() and
__xa_alloc_cyclic(), informing about the necessity of flag XA_FLAGS_ALLOC
being set previously.
The documentation so far says that functions wrapping __xa_alloc() and
__xa_alloc_cyclic() are supposed to return either -ENOMEM or -EBUSY in
case of an error. If the xarray has been initialized without the flag
XA_FLAGS_ALLOC, however, they fail with a different, undocumented error
code.
As hinted at in Documentation/core-api/xarray.rst, wrappers around these
functions should only be invoked when the flag has been set. The
functions' documentation should reflect that as well.
Signed-off-by: Philipp Stanner <pstanner@redhat.com>
Signed-off-by: Matthew Wilcox (Oracle) <willy@infradead.org>
Convert the OmniVision OV7251 Image Sensor binding to DT schema format.
vddd-supply was listed as required, but the example and actual user
don't have it. Also, the data brief says it has an internal regulator,
so perhaps it is truly optional.
Add missing common "link-frequencies" which is used and required by the
Linux driver.
Reviewed-by: Conor Dooley <conor.dooley@microchip.com>
Acked-by: Wolfram Sang <wsa@kernel.org> # for I2C
Link: https://lore.kernel.org/r/20230817202713.2180195-1-robh@kernel.org
Signed-off-by: Rob Herring <robh@kernel.org>
The OV5695 binding is almost the same as the OV5693 binding. The only
difference is 'clock-names' is defined for OV5695. However, the lack of
clock-names is an omission as the Linux OV5693 driver expects the same
'xvclk' clock name.
'link-frequencies' is required by OV5693, but not OV5695, so make that
conditional. Really, this shouldn't vary by device, but we're stuck with
the existing binding use.
The rockchip-isp1 binding example is missing required properties, so it
has to be updated as well.
Reviewed-by: Conor Dooley <conor.dooley@microchip.com>
Link: https://lore.kernel.org/r/20230817202647.2179609-1-robh@kernel.org
Signed-off-by: Rob Herring <robh@kernel.org>
- Fix a glock state (non-)transition bug when a dlm request times out
and is canceled, and we have locking requests that can now be granted
immediately.
- Various fixes and cleanups in how the logd and quotad daemons are
woken up and terminated.
- Fix several bugs in the quota data reference counting and shrinking.
Free quota data objects synchronously in put_super() instead of
letting call_rcu() run wild.
- Make sure not to deallocate quota data during a withdraw; rather, defer
quota data deallocation to put_super(). Withdraws can happen in
contexts in which callers on the stack are holding quota data references.
- Many minor quota fixes and cleanups by Bob.
- Update the the mailing list address for gfs2 and dlm. (It's the same
list for both and we are moving it to gfs2@lists.linux.dev.)
- Various other minor cleanups.
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Merge tag 'gfs2-v6.5-rc5-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/gfs2/linux-gfs2
Pull gfs2 updates from Andreas Gruenbacher:
- Fix a glock state (non-)transition bug when a dlm request times out
and is canceled, and we have locking requests that can now be granted
immediately
- Various fixes and cleanups in how the logd and quotad daemons are
woken up and terminated
- Fix several bugs in the quota data reference counting and shrinking.
Free quota data objects synchronously in put_super() instead of
letting call_rcu() run wild
- Make sure not to deallocate quota data during a withdraw; rather,
defer quota data deallocation to put_super(). Withdraws can happen in
contexts in which callers on the stack are holding quota data
references
- Many minor quota fixes and cleanups by Bob
- Update the the mailing list address for gfs2 and dlm. (It's the same
list for both and we are moving it to gfs2@lists.linux.dev)
- Various other minor cleanups
* tag 'gfs2-v6.5-rc5-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/gfs2/linux-gfs2: (51 commits)
MAINTAINERS: Update dlm mailing list
MAINTAINERS: Update gfs2 mailing list
gfs2: change qd_slot_count to qd_slot_ref
gfs2: check for no eligible quota changes
gfs2: Remove useless assignment
gfs2: simplify slot_get
gfs2: Simplify qd2offset
gfs2: introduce qd_bh_get_or_undo
gfs2: Remove quota allocation info from quota file
gfs2: use constant for array size
gfs2: Set qd_sync_gen in do_sync
gfs2: Remove useless err set
gfs2: Small gfs2_quota_lock cleanup
gfs2: move qdsb_put and reduce redundancy
gfs2: improvements to sysfs status
gfs2: Don't try to sync non-changes
gfs2: Simplify function need_sync
gfs2: remove unneeded pg_oflow variable
gfs2: remove unneeded variable done
gfs2: pass sdp to gfs2_write_buf_to_page
...
Random kernel crash detected in TI CICD when regulator driver is added.
This is root caused to irq index increment being done twice causing
irq_data being allocated outside of the range.
- Rework tps6594_request_reg_irqs with correct index increment
- Adjust irq_data kmalloc size to the exact size needed for the device
This has been reported on TI mainline. No public bug report associated.
Reported-by: Udit Kumar <u-kumar1@ti.com>
Fixes: f17ccc5deb ("regulator: tps6594-regulator: Add driver for TI TPS6594 regulators")
Signed-off-by: Jerome Neanne <jneanne@baylibre.com>
Link: https://lore.kernel.org/r/20230828-tps6594_random_boot_crash_fix-v1-1-f29cbf9ddb37@baylibre.com
Signed-off-by: Mark Brown <broonie@kernel.org>
Starting from SPR, the basic uncore PMON information is retrieved from
the discovery table (resides in an MMIO space populated by BIOS). It is
called the discovery method. The existing value of the type->num_boxes
is from the discovery table.
On some SPR variants, there is a firmware bug that makes the value from the
discovery table incorrect. We use the value from the
SPR_MSR_UNC_CBO_CONFIG MSR to replace the one from the discovery table:
38776cc45e ("perf/x86/uncore: Correct the number of CHAs on SPR")
Unfortunately, the SPR_MSR_UNC_CBO_CONFIG isn't available for the EMR
XCC (Always returns 0), but the above firmware bug doesn't impact the
EMR XCC.
Don't let the value from the MSR replace the existing value from the
discovery table.
Fixes: 38776cc45e ("perf/x86/uncore: Correct the number of CHAs on SPR")
Reported-by: Stephane Eranian <eranian@google.com>
Reported-by: Yunying Sun <yunying.sun@intel.com>
Signed-off-by: Kan Liang <kan.liang@linux.intel.com>
Signed-off-by: Ingo Molnar <mingo@kernel.org>
Tested-by: Yunying Sun <yunying.sun@intel.com>
Link: https://lore.kernel.org/r/20230905134248.496114-1-kan.liang@linux.intel.com
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Merge tag 'fuse-update-6.6' of git://git.kernel.org/pub/scm/linux/kernel/git/mszeredi/fuse
Pull fuse updates from Miklos Szeredi:
- Revert non-waiting FLUSH due to a regression
- Fix a lookup counter leak in readdirplus
- Add an option to allow shared mmaps in no-cache mode
- Add btime support and statx intrastructure to the protocol
- Invalidate positive/negative dentry on failed create/delete
* tag 'fuse-update-6.6' of git://git.kernel.org/pub/scm/linux/kernel/git/mszeredi/fuse:
fuse: conditionally fill kstat in fuse_do_statx()
fuse: invalidate dentry on EEXIST creates or ENOENT deletes
fuse: cache btime
fuse: implement statx
fuse: add ATTR_TIMEOUT macro
fuse: add STATX request
fuse: handle empty request_mask in statx
fuse: write back dirty pages before direct write in direct_io_relax mode
fuse: add a new fuse init flag to relax restrictions in no cache mode
fuse: invalidate page cache pages before direct write
fuse: nlookup missing decrement in fuse_direntplus_link
Revert "fuse: in fuse_flush only wait if someone wants the return code"
There are no more users of thermal_zone_device_register(), so drop it
from the core.
Note that thermal_zone_device_register_with_trips() may be renamed to
thermal_zone_device_register() in the future, but only after a grace
period allowing all of the possible work in progress that may be using
the latter to adjust.
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
All of the remaining callers of thermal_zone_device_register()
can use thermal_tripless_zone_device_register(), so make them
do so in order to allow the former to be dropped.
No intentional functional impact.
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
Acked-by: Miquel Raynal <miquel.raynal@bootlin.com>
Multiple callers of thermal_zone_device_register() don't pass any trips
to it and they might use a shortened argument list for that, so add
a special function with fewer arguments for this purpose.
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
For consistency, add a missing thermal_zone_device_register_with_trips()
stub for the CONFIG_THERMAL unset case, specify argument names in all of
the thermal zone registration and unregistration function headers and
make all of them use white space consistently.
No intentional functional impact.
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
- Fix OF include file for ata platform drivers (Rob).
- Simplify various ahci, sata and pata platform drivers using the
function devm_platform_ioremap_resource() (Yangtao).
- Cleanup libata time related argument types (e.g. timeouts values)
(Sergey).
- Cleanup libata code around error handling as all ata drivers now
define a error_handler operation (Hannes and Niklas).
- Remove functions intended for libsas that are in fact unused
(Niklas).
- Change the remove device callback of platform drivers to a null
function (Uwe).
- Simplify the pata_imx driver using devm_clk_get_enabled() (Li).
- Remove old and uinused remnants of the ide code in arm, parisc,
powerpc, sparc and m68k architectures and associated drivers
(pata_buddha, pata_falcon and pata_gayle) (Geert).
- Add missing MODULE_DESCRIPTION() in the sata_gemini and pata_ftide010
drivers (me).
- Several fixes for the pata_ep93xx and pata_falcon drivers (Nikita,
Michael).
- Add Elkhart Lake AHCI controller support to the ahci driver (Werner).
- Disable NCQ trim on Micron 1100 drives (Pawel).
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Merge tag 'ata-6.6-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/dlemoal/libata
Pull ata updates from Damien Le Moal:
- Fix OF include file for ata platform drivers (Rob)
- Simplify various ahci, sata and pata platform drivers using the
function devm_platform_ioremap_resource() (Yangtao)
- Cleanup libata time related argument types (e.g. timeouts values)
(Sergey)
- Cleanup libata code around error handling as all ata drivers now
define a error_handler operation (Hannes and Niklas)
- Remove functions intended for libsas that are in fact unused (Niklas)
- Change the remove device callback of platform drivers to a null
function (Uwe)
- Simplify the pata_imx driver using devm_clk_get_enabled() (Li)
- Remove old and uinused remnants of the ide code in arm, parisc,
powerpc, sparc and m68k architectures and associated drivers
(pata_buddha, pata_falcon and pata_gayle) (Geert)
- Add missing MODULE_DESCRIPTION() in the sata_gemini and pata_ftide010
drivers (me)
- Several fixes for the pata_ep93xx and pata_falcon drivers (Nikita,
Michael)
- Add Elkhart Lake AHCI controller support to the ahci driver (Werner)
- Disable NCQ trim on Micron 1100 drives (Pawel)
* tag 'ata-6.6-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/dlemoal/libata: (60 commits)
ata: libata-core: Disable NCQ_TRIM on Micron 1100 drives
ata: ahci: Add Elkhart Lake AHCI controller
ata: pata_falcon: add data_swab option to byte-swap disk data
ata: pata_falcon: fix IO base selection for Q40
ata: pata_ep93xx: use soc_device_match for UDMA modes
ata: pata_ep93xx: fix error return code in probe
ata: sata_gemini: Add missing MODULE_DESCRIPTION
ata: pata_ftide010: Add missing MODULE_DESCRIPTION
m68k: Remove <asm/ide.h>
ata: pata_gayle: Remove #include <asm/ide.h>
ata: pata_falcon: Remove #include <asm/ide.h>
ata: pata_buddha: Remove #include <asm/ide.h>
asm-generic: Remove ide_iops.h
sparc: Remove <asm/ide.h>
powerpc: Remove <asm/ide.h>
parisc: Remove <asm/ide.h>
ARM: Remove <asm/ide.h>
ata: pata_imx: Use helper function devm_clk_get_enabled()
ata: sata_rcar: Convert to platform remove callback returning void
ata: sata_mv: Convert to platform remove callback returning void
...
which were introduced in the current merge window.
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Merge tag 'mm-hotfixes-stable-2023-09-05-11-51' of git://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm
Pull misc fixes from Andrew Morton:
"Seven hotfixes. Four are cc:stable and the remainder pertain to issues
which were introduced in the current merge window"
* tag 'mm-hotfixes-stable-2023-09-05-11-51' of git://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm:
sparc64: add missing initialization of folio in tlb_batch_add()
mm: memory-failure: use rcu lock instead of tasklist_lock when collect_procs()
revert "memfd: improve userspace warnings for missing exec-related flags".
rcu: dump vmalloc memory info safely
mm/vmalloc: add a safer version of find_vm_area() for debug
tools/mm: fix undefined reference to pthread_once
memcontrol: ensure memcg acquired by id is properly set up
This pull request contains two more bug fixes for tpm_crb, in other
words categorically disabling rng for AMD CPU's in the tpm_crb driver,
discarding the earlier probing approach.
BR, Jarkko
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Merge tag 'tpmdd-v6.6-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/jarkko/linux-tpmdd
Pull more tpm updates from Jarkko Sakkinen:
"Two more bug fixes for tpm_crb, categorically disabling rng for AMD
CPU's in the tpm_crb driver, discarding the earlier probing approach"
* tag 'tpmdd-v6.6-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/jarkko/linux-tpmdd:
tpm: Enable hwrng only for Pluton on AMD CPUs
tpm_crb: Fix an error handling path in crb_acpi_add()
The only interface that allows drivers establishing
liner mappings is vmem_add_mapping(). It does check
a requested range against allowed limits and a call
to modify_pagetable() with an invalid mapping range
is impossible.
Hence, an attempt to map an address range outside of
the identity mapping or vmemmap array could only be
kernel bug.
Reviewed-by: Heiko Carstens <hca@linux.ibm.com>
Signed-off-by: Alexander Gordeev <agordeev@linux.ibm.com>
Signed-off-by: Heiko Carstens <hca@linux.ibm.com>
With the dev_set_name() prototype it's not obvious that it takes
a formatted string as a parameter. Use its facility instead of
duplicating the same with strncpy()/snprintf() calls.
With this, also prevent return error code to be shadowed.
Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Link: https://lore.kernel.org/r/20230831110000.24279-2-andriy.shevchenko@linux.intel.com
Signed-off-by: Harald Freudenberger <freude@linux.ibm.com>
Signed-off-by: Heiko Carstens <hca@linux.ibm.com>
MAX_DMA_ADDRESS is defined and treated as a physical address,
whereas it should be virtual.
Reviewed-by: Heiko Carstens <hca@linux.ibm.com>
Signed-off-by: Alexander Gordeev <agordeev@linux.ibm.com>
Signed-off-by: Heiko Carstens <hca@linux.ibm.com>
Commit 1a10a44dfc ("sparc64: implement the new page table range API")
missed initialization of folio variable in tlb_batch_add() which causes
boot tests to crash.
Add missing initialization.
Link: https://lkml.kernel.org/r/20230904174350.GF3223@kernel.org
Fixes: 1a10a44dfc ("sparc64: implement the new page table range API")
Signed-off-by: Mike Rapoport (IBM) <rppt@kernel.org>
Reported-by: Guenter Roeck <linux@roeck-us.net>
Tested-by: Guenter Roeck <linux@roeck-us.net>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
We found a softlock issue in our test, analyzed the logs, and found that
the relevant CPU call trace as follows:
CPU0:
_do_fork
-> copy_process()
-> write_lock_irq(&tasklist_lock) //Disable irq,waiting for
//tasklist_lock
CPU1:
wp_page_copy()
->pte_offset_map_lock()
-> spin_lock(&page->ptl); //Hold page->ptl
-> ptep_clear_flush()
-> flush_tlb_others() ...
-> smp_call_function_many()
-> arch_send_call_function_ipi_mask()
-> csd_lock_wait() //Waiting for other CPUs respond
//IPI
CPU2:
collect_procs_anon()
-> read_lock(&tasklist_lock) //Hold tasklist_lock
->for_each_process(tsk)
-> page_mapped_in_vma()
-> page_vma_mapped_walk()
-> map_pte()
->spin_lock(&page->ptl) //Waiting for page->ptl
We can see that CPU1 waiting for CPU0 respond IPI，CPU0 waiting for CPU2
unlock tasklist_lock, CPU2 waiting for CPU1 unlock page->ptl. As a result,
softlockup is triggered.
For collect_procs_anon(), what we're doing is task list iteration, during
the iteration, with the help of call_rcu(), the task_struct object is freed
only after one or more grace periods elapse. the logic as follows:
release_task()
-> __exit_signal()
-> __unhash_process()
-> list_del_rcu()
-> put_task_struct_rcu_user()
-> call_rcu(&task->rcu, delayed_put_task_struct)
delayed_put_task_struct()
-> put_task_struct()
-> if (refcount_sub_and_test())
__put_task_struct()
-> free_task()
Therefore, under the protection of the rcu lock, we can safely use
get_task_struct() to ensure a safe reference to task_struct during the
iteration.
By removing the use of tasklist_lock in task list iteration, we can break
the softlock chain above.
The same logic can also be applied to:
- collect_procs_file()
- collect_procs_fsdax()
- collect_procs_ksm()
Link: https://lkml.kernel.org/r/20230828022527.241693-1-tongtiangen@huawei.com
Signed-off-by: Tong Tiangen <tongtiangen@huawei.com>
Acked-by: Naoya Horiguchi <naoya.horiguchi@nec.com>
Cc: Kefeng Wang <wangkefeng.wang@huawei.com>
Cc: Matthew Wilcox (Oracle) <willy@infradead.org>
Cc: Miaohe Lin <linmiaohe@huawei.com>
Cc: Paul E. McKenney <paulmck@kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
This warning is telling userspace developers to pass MFD_EXEC and
MFD_NOEXEC_SEAL to memfd_create(). Commit 434ed3350f ("memfd: improve
userspace warnings for missing exec-related flags") made the warning more
frequent and visible in the hope that this would accelerate the fixing of
errant userspace.
But the overall effect is to generate far too much dmesg noise.
Fixes: 434ed3350f ("memfd: improve userspace warnings for missing exec-related flags")
Reported-by: Damian Tometzki <dtometzki@fedoraproject.org>
Closes: https://lkml.kernel.org/r/ZPFzCSIgZ4QuHsSC@fedora.fritz.box
Cc: Aleksa Sarai <cyphar@cyphar.com>
Cc: Christian Brauner <brauner@kernel.org>
Cc: Daniel Verkamp <dverkamp@chromium.org>
Cc: Jeff Xu <jeffxu@google.com>
Cc: Kees Cook <keescook@chromium.org>
Cc: Shuah Khan <shuah@kernel.org>
Cc: <stable@vger.kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
The of_overlay_fdt_apply has been changed but when CONFIG_OF_OVERLAY
support is not configured then old stub prototype is declared
by of.h header.
Signed-off-by: Pavel Pisa <pisa@cmp.felk.cvut.cz>
Fixes: 47284862bf ("of: overlay: Extend of_overlay_fdt_apply() to specify the target node")
Acked-by: Marc Kleine-Budde <mkl@pengutronix.de>
Link: https://lore.kernel.org/r/20230904100002.7913-1-pisa@cmp.felk.cvut.cz
Signed-off-by: Rob Herring <robh@kernel.org>
- Enable -Wenum-conversion warning option
- Refactor the rpm-pkg target
- Fix scripts/setlocalversion to consider annotated tags for rt-kernel
- Add a jump key feature for the search menu of 'make nconfig'
- Support Qt6 for 'make xconfig'
- Enable -Wformat-overflow, -Wformat-truncation, -Wstringop-overflow, and
-Wrestrict warnings for W=1 builds
- Replace <asm/export.h> with <linux/export.h> for alpha, ia64, and sparc
- Support DEB_BUILD_OPTIONS=parallel=N for the debian source package
- Refactor scripts/Makefile.modinst and fix some modules_sign issues
- Add a new Kconfig env variable to warn symbols that are not defined anywhere
- Show help messages of config fragments in 'make help'
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Merge tag 'kbuild-v6.6' of git://git.kernel.org/pub/scm/linux/kernel/git/masahiroy/linux-kbuild
Pull Kbuild updates from Masahiro Yamada:
- Enable -Wenum-conversion warning option
- Refactor the rpm-pkg target
- Fix scripts/setlocalversion to consider annotated tags for rt-kernel
- Add a jump key feature for the search menu of 'make nconfig'
- Support Qt6 for 'make xconfig'
- Enable -Wformat-overflow, -Wformat-truncation, -Wstringop-overflow,
and -Wrestrict warnings for W=1 builds
- Replace <asm/export.h> with <linux/export.h> for alpha, ia64, and
sparc
- Support DEB_BUILD_OPTIONS=parallel=N for the debian source package
- Refactor scripts/Makefile.modinst and fix some modules_sign issues
- Add a new Kconfig env variable to warn symbols that are not defined
anywhere
- Show help messages of config fragments in 'make help'
* tag 'kbuild-v6.6' of git://git.kernel.org/pub/scm/linux/kernel/git/masahiroy/linux-kbuild: (62 commits)
kconfig: fix possible buffer overflow
kbuild: Show marked Kconfig fragments in "help"
kconfig: add warn-unknown-symbols sanity check
kbuild: dummy-tools: make MPROFILE_KERNEL checks work on BE
Documentation/llvm: refresh docs
modpost: Skip .llvm.call-graph-profile section check
kbuild: support modules_sign for external modules as well
kbuild: support 'make modules_sign' with CONFIG_MODULE_SIG_ALL=n
kbuild: move more module installation code to scripts/Makefile.modinst
kbuild: reduce the number of mkdir calls during modules_install
kbuild: remove $(MODLIB)/source symlink
kbuild: move depmod rule to scripts/Makefile.modinst
kbuild: add modules_sign to no-{compiler,sync-config}-targets
kbuild: do not run depmod for 'make modules_sign'
kbuild: deb-pkg: support DEB_BUILD_OPTIONS=parallel=N in debian/rules
alpha: remove <asm/export.h>
alpha: replace #include <asm/export.h> with #include <linux/export.h>
ia64: remove <asm/export.h>
ia64: replace #include <asm/export.h> with #include <linux/export.h>
sparc: remove <asm/export.h>
...
- Also a number of singleton patches, mainly cleanups and leftovers.
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Merge tag 'mm-stable-2023-09-04-14-00' of git://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm
Pull more MM updates from Andrew Morton:
- Stefan Roesch has added ksm statistics to /proc/pid/smaps
- Also a number of singleton patches, mainly cleanups and leftovers
* tag 'mm-stable-2023-09-04-14-00' of git://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm:
mm/kmemleak: move up cond_resched() call in page scanning loop
mm: page_alloc: remove stale CMA guard code
MAINTAINERS: add rmap.h to mm entry
rmap: remove anon_vma_link() nommu stub
proc/ksm: add ksm stats to /proc/pid/smaps
mm/hwpoison: rename hwp_walk* to hwpoison_walk*
mm: memory-failure: add PageOffline() check
Change the minimum value of RX/TX descriptors to 64 to enable setting the rx/tx
value between 64 and 80. All igb devices can use as low as 64 descriptors.
This change will unify igb with other drivers.
Based on commit 7b1be1987c ("e1000e: lower ring minimum size to 64")
Fixes: 9d5c824399 ("igb: PCI-Express 82575 Gigabit Ethernet driver")
Signed-off-by: Olga Zaborska <olga.zaborska@intel.com>
Tested-by: Pucha Himasekhar Reddy <himasekharx.reddy.pucha@intel.com> (A Contingent worker at Intel)
Signed-off-by: Tony Nguyen <anthony.l.nguyen@intel.com>
