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kmalloc(16, GFP_ATOMIC) in c2h_wk_callback() could in theory return2
NULL, which would then be dereferenced in rtw_hal_c2h_valid().
A 16-byte allocation effectively cannot fail in practice, but add an
else continue; to the guard so the failure path exits the iteration
cleanly to make the code more robust.
Signed-off-by: Nikoloz Bakuradze <nbakuradze28@gmail.com>
Reviewed-by: Andy Shevchenko <andriy.shevchenko@intel.com>
Link: https://patch.msgid.link/20260610164755.49626-1-nbakuradze28@gmail.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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The function doesn't use the pdid parameter, so drop that and adapt the
only caller accordingly.
Signed-off-by: Uwe Kleine-König <ukleinek@kernel.org>
Link: https://patch.msgid.link/23949de4c5f10e78a4bd85e333d7acd47b2f66b7.1781109707.git.ukleinek@kernel.org
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Remove unnecessary multiple blank lines.
Fix 5 checkpatch.pl checks in rtw_security.c of the type:
- CHECK: Please don't use multiple blank lines
Signed-off-by: Andrea Frasson <andreafrasson1995@gmail.com>
Reviewed-by: Ethan Tidmore <ethantidmore06@gmail.com>
Link: https://patch.msgid.link/aiRL4dekV140SPGw@frassi
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Resolved checkpatch finding by adding braces as shown in styleguide.
Signed-off-by: Dalvin-Ehinoma Noah Aiguobas <fliegbert2@gmail.com>
Link: https://patch.msgid.link/aiG4aDh2czwJ2-bf@koolguy
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Remove unnecessary parantheses around &(foo->bar) type statements to
improve code readability
Signed-off-by: Eugene Mavick <m@mavick.dev>
Link: https://patch.msgid.link/20260604095617.852425-1-m@mavick.dev
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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The network_type_in_use member of struct wlan_bssid_ex is write-only:
nothing in the driver ever reads it. It is assigned in three places,
none of which feed anything:
- collect_bss_info() hard-codes it to Ndis802_11OFDM24 for every
parsed beacon/probe response, regardless of the network's actual
band or rates (it is even wrong for 5 GHz APs, which the same
function explicitly handles).
- rtw_check_beacon_data() and rtw_update_registrypriv_dev_network()
derive it from the wireless mode via a switch, but the result is
likewise never consumed.
The live PHY classification the driver actually acts on is kept in
wlan_network.network_type (the WIRELESS_11x value), so this NDIS-era
field is redundant.
struct wlan_bssid_ex is an internal structure passed by pointer through
the driver command queue; it is never serialized to firmware or onto
the air (the wire data lives in ies[]), so dropping a member is
layout-safe as long as the module is rebuilt as a whole.
enum ndis_802_11_network_type existed only to type this field, so
remove it as well. No functional change.
Signed-off-by: Cong Nguyen <congnt264@gmail.com>
Link: https://patch.msgid.link/20260603122806.1330145-1-congnt264@gmail.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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The hardware VLAN filter (RFE_CTL_VLAN_FILTER_) drops VLAN-tagged frames
whose VID has not been registered via lan78xx_vlan_rx_add_vid(). It is
left enabled in promiscuous mode, so packet capture (e.g. tcpdump or
Wireshark) does not see tagged frames for unregistered VIDs.
Clear the filter while the interface is promiscuous and restore it from
NETIF_F_HW_VLAN_CTAG_FILTER otherwise. Enforce the same condition in
lan78xx_set_features() so netdev_update_features() cannot re-enable the
filter while promiscuous.
Fixes: 55d7de9de6c3 ("Microchip's LAN7800 family USB 2/3 to 10/100/1000 Ethernet device driver")
Signed-off-by: Enrico Pozzobon <enrico.pozzobon@dissecto.com>
Reviewed-by: Nicolai Buchwitz <nb@tipi-net.de>
Link: https://patch.msgid.link/20260701-lan78xx-vlan-promisc-v3-1-232266d32743@dissecto.com
Signed-off-by: Paolo Abeni <pabeni@redhat.com>
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After deleting one of the switch-case branches, this parameter became
unused, so remove it.
Signed-off-by: Nikolay Kulikov <nikolayof23@gmail.com>
Reviewed-by: Dan Carpenter <error27@gmail.com>
Link: https://patch.msgid.link/20260601150253.69930-3-nikolayof23@gmail.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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The update_beacon() function is never called with 'ie_id' equal to
'WLAN_EID_VENDOR_SPECIFIC', meaning this case branch will never be
called, so remove it and several related functions.
Removing this case branch also fixes a possible null pointer
dereference in update_bcn_vendor_spec() if 'oui' is NULL, since
its value is not checked in any way.
Signed-off-by: Nikolay Kulikov <nikolayof23@gmail.com>
Reviewed-by: Dan Carpenter <error27@gmail.com>
Link: https://patch.msgid.link/20260601150253.69930-2-nikolayof23@gmail.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Fix alignment to improve code readability and clear checkpatch warning:
CHECK: Alignment should match open parenthesis
Signed-off-by: Eugene Mavick <mavick4022@gmail.com>
Link: https://patch.msgid.link/20260601093757.612130-3-mavick4022@gmail.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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The driver defined its own enum ndis_802_11_network_infrastructure to
represent the operating mode (STA/AP/IBSS) and translated nl80211 iftypes
into it in cfg80211_rtw_change_iface(). The kernel already provides
enum nl80211_iftype for this purpose, so use it directly and drop the
redundant translation layer.
Map the removed values as follows:
Ndis802_11IBSS -> NL80211_IFTYPE_ADHOC
Ndis802_11Infrastructure -> NL80211_IFTYPE_STATION
Ndis802_11APMode -> NL80211_IFTYPE_AP
Ndis802_11AutoUnknown -> NL80211_IFTYPE_UNSPECIFIED
Compile-tested only.
Signed-off-by: Cong Nguyen <congnt264@gmail.com>
Link: https://patch.msgid.link/20260707104836.3176765-1-congnt264@gmail.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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git://git.kernel.org/pub/scm/linux/kernel/git/cxl/cxl
Lucero Palau, Alejandro says:
====================
pull request: sfc 2026-07-01
here are the last CXL core changes for enabling CXL Type2 drivers to
initialize a CXL-capable device plus the netdev sfc driver changes using
this new CXL core Type2 support.
Please pull or let me know of any problem!
SFC changes for CXL type2 enabling
* tag 'sfc-net-pullrequest-20260630' of git://git.kernel.org/pub/scm/linux/kernel/git/cxl/cxl:
sfc: support pio mapping based on cxl
sfc: obtain and map cxl range using devm_cxl_probe_mem
sfc: Initialize cxl dpa
sfc: Map cxl regs
sfc: add cxl support
cxl: Support dpa without a mailbox
cxl: Support Type2 cxl regs mapping
====================
Link: https://patch.msgid.link/20260701113805.14072-1-alejandro.lucero-palau@amd.com
Signed-off-by: Paolo Abeni <pabeni@redhat.com>
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Rename variable dot11AuthAlgrthm to dot11_auth_algrthm in
struct security_priv to resolve checkpatch.pl CamelCase finding.
Signed-off-by: Dalvin-Ehinoma Noah Aiguobas <fliegbert2@gmail.com>
Link: https://patch.msgid.link/ahwHbMecWpijQBv9@koolguy
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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This field is set to 'true' once and is never used again. Remove it to
eliminate dead code.
Signed-off-by: Nikolay Kulikov <nikolayof23@gmail.com>
Link: https://patch.msgid.link/20260531080015.74870-1-nikolayof23@gmail.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Remove tab characters that appeared after '/*' in two comment lines,
which caused 'please, no space before tabs' warnings. Replace the
space+tab combination with a single space after the comment opener.
Detected by checkpatch.pl with --strict flag.
Signed-off-by: Praveen Jayaprakash Pattar <praveen.pattar2022@gmail.com>
Link: https://patch.msgid.link/20260531045511.5774-1-praveen.pattar2022@gmail.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Fix incorrect indentation of an if statement inside an else block.
The statement had a space before it instead of proper tab alignment,
causing checkpatch.pl to report 'suspect code indent' and 'statements
should start on a tabstop' warnings.
Detected by checkpatch.pl with --strict flag.
Signed-off-by: Praveen Jayaprakash Pattar <praveen.pattar2022@gmail.com>
Link: https://patch.msgid.link/20260531040420.5426-1-praveen.pattar2022@gmail.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Corrected typo in comment:
- varable -> variable
Found by codespell.
Signed-off-by: Tomasz Unger <tomasz.unger@yahoo.pl>
Link: https://patch.msgid.link/20260528-fix-typo-rtw-mlme-v1-1-2172d3227b00@yahoo.pl
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Fix typo 'temporily' -> 'temporarily' in comments.
Found by codespell.
Signed-off-by: Tomasz Unger <tomasz.unger@yahoo.pl>
Link: https://patch.msgid.link/20260527-staging-fix-1-v1-1-66ad880bcf76@yahoo.pl
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Corrected typos in comments:
- contrl -> control
- Redifine -> Redefine
- pauload -> payload
Found by codespell.
Signed-off-by: Tomasz Unger <tomasz.unger@yahoo.pl>
Link: https://patch.msgid.link/20260526-fix-typos-hal-com-reg-v1-1-9deb54e6e2e8@yahoo.pl
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Corrected typo: FASLE -> FALSE in comment
Signed-off-by: Tomasz Unger <tomasz.unger@yahoo.pl>
Link: https://patch.msgid.link/20260526-fix-typo-odm-dig-v1-1-4392b0c03e13@yahoo.pl
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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The 'for' loop in ODM_TXPowerTrackingCallback_ThermalMeter performs no
operations and just iterates over the path count. This is unnecessary code.
Also, remove the associated "Print Swing base & current" comment, as
it no longer refers to any active code.
Signed-off-by: Igor Putko <igorpetindev@gmail.com>
Link: https://patch.msgid.link/20260525121004.4989-1-igorpetindev@gmail.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Rename the variable 'nSubframe_Length' to 'subframe_len' in
amsdu_to_msdu() and rtw_alloc_msdu_pkt() to resolve a
checkpatch.pl CamelCase warning.
Signed-off-by: Anirban Bose <boses156@gmail.com>
Link: https://patch.msgid.link/20260525074419.144884-1-boses156@gmail.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Fix non-standard block comment format. The comment was using '/*++'
and '--*/' delimiters instead of the standard '/*' and '*/' used in
kernel coding style. Also fix missing '*' prefix on subsequent lines
and remove space before tab characters.
Detected by checkpatch.pl with --strict flag.
Signed-off-by: Praveen Jayaprakash Pattar <praveen.pattar2022@gmail.com>
Link: https://patch.msgid.link/20260524152506.5670-1-praveen.pattar2022@gmail.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Remove unnecessary braces around a single statement block
to improve readability and conform to kernel coding style.
No functional changes intended.
Signed-off-by: Atharv Margur <atharvmargur@gmail.com>
Link: https://patch.msgid.link/20260524111736.14477-1-atharvmargur@gmail.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Detected the following WARNING: function definition argument
'struct adapter *' should also have an identifier name.
Add explicit names on those definitions.
Signed-off-by: Rodrigo Gobbi <rodrigo.gobbi.7@gmail.com>
Link: https://patch.msgid.link/20260609221200.123422-1-rodrigo.gobbi.7@gmail.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Fix checkpatch warnings on inconsistent braces around if/else statements
in hal/sdio_halinit.c
Signed-off-by: Artur Ugnivenko <artur.ugnivenko@gmx.de>
Reviewed-by: Dan Carpenter <error27@gmail.com>
Link: https://patch.msgid.link/20260528170645.30861-3-artur.ugnivenko@gmx.de
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Fix checkpatch warnings on lines above 100 chars in length by splitting
long function calls and long comments into multiple lines.
Signed-off-by: Artur Ugnivenko <artur.ugnivenko@gmx.de>
Reviewed-by: Dan Carpenter <error27@gmail.com>
Link: https://patch.msgid.link/20260528170645.30861-2-artur.ugnivenko@gmx.de
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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padapter->HalData is allocated via vzalloc(), but incorrectly freed
using kfree() in the rtw_sdio_if1_init() error path. Using kfree() to
release this vmalloc-backed buffer can lead to memory corruption.
Use rtw_hal_data_deinit() to pair the free correctly and free
HalData with vfree().
The bug was first flagged by an experimental static analysis tool we
are developing for kernel memory-management bugs. Manual inspection
confirms that the issue is still present in current mainline.
An x86_64 allyesconfig build showed no new warnings. As we do not have
suitable RTL8723BS SDIO hardware to test with, no runtime testing was
able to be performed.
Fixes: 554c0a3abf21 ("staging: Add rtl8723bs sdio wifi driver")
Signed-off-by: Zilin Guan <zilin@seu.edu.cn>
Signed-off-by: Dawei Feng <dawei.feng@seu.edu.cn>
Reviewed-by: Dan Carpenter <error27@gmail.com>
Link: https://patch.msgid.link/20260525091836.812565-1-dawei.feng@seu.edu.cn
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Rename RxMgmtFrameSeqNum to rx_mgmt_frame_seq_num to comply with
kernel coding style.
Found by checkpatch.pl strict.
Signed-off-by: Gianmaria Biselli <gianmariabiselli@gmail.com>
Link: https://patch.msgid.link/20260524031212.26208-1-gianmariabiselli@gmail.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Adhere to the Linux kernel coding style by adding missing spaces
around the '*' binary operator in the init_channel_set function.
This resolves a checkpatch warning and improves code readability.
Signed-off-by: Mohammed Momin <linuxmomin0@gmail.com>
Link: https://patch.msgid.link/20260523171903.30484-1-linuxmomin0@gmail.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Wrap the long function signature of rtw_os_xmit_resource_free to
comply with the 100 column line length limit reported by checkpatch.pl.
Signed-off-by: Pramod Maurya <pramod.nexgen@gmail.com>
Link: https://patch.msgid.link/20260523162831.163704-1-pramod.nexgen@gmail.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Remove unnecessary braces around single statement blocks
to improve readability and conform to kernel coding style.
No functional changes intended.
Signed-off-by: Atharv Margur <atharvmargur@gmail.com>
Link: https://patch.msgid.link/20260523141341.21607-1-atharvmargur@gmail.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Clean up the wlanevents table by removing redundant
ampersands, adding all index comments and aligning them.
Signed-off-by: Andrei Khomenkov <khomenkov@mailbox.org>
Link: https://patch.msgid.link/20260522190256.49830-3-khomenkov@mailbox.org
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Remove the dead rtw_atimdone_event_callback() function since it is
unused anywhere in the driver. In the wlanevents table, replace it
with rtw_dummy_event_callback() to avoid an index shift.
Signed-off-by: Andrei Khomenkov <khomenkov@mailbox.org>
Reviewed-by: Dan Carpenter <error27@gmail.com>
Link: https://patch.msgid.link/20260522190256.49830-2-khomenkov@mailbox.org
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Reformat multi-line function signature to a single line to fix
line length and coding style warnings from checkpatch.pl.
Signed-off-by: Moksh Panicker <mokshpanicker.7@gmail.com>
Link: https://patch.msgid.link/20260522125022.29700-3-mokshpanicker.7@gmail.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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rtl8192c_translate_rx_signal_stuff() and rtl8192c_query_rx_desc_status()
are declared in rtl8192c_recv.h but neither has a definition anywhere
in the driver, and there are no callers. Remove the dead declarations.
Signed-off-by: Pang-Chun Liu <kevin95120@gmail.com>
Reviewed-by: Dan Carpenter <error27@gmail.com>
Link: https://patch.msgid.link/20260521144113.28869-1-kevin95120@gmail.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Convert LPS_RF_ON_check() to return standard kernel error codes.
Replace -1 and -2 with -ETIMEDOUT and -ENODEV respectively.
No functional change intended as callers currently ignore
the return value.
Signed-off-by: Hungyu Lin <dennylin0707@gmail.com>
Link: https://patch.msgid.link/20260521104316.27739-3-dennylin0707@gmail.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Replace err + break pattern with direct returns to simplify
the control flow and improve readability.
No functional change intended.
Signed-off-by: Hungyu Lin <dennylin0707@gmail.com>
Link: https://patch.msgid.link/20260521104316.27739-2-dennylin0707@gmail.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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"queue_map" is a pointer to "u32" and is not modified by the
ppe_ring_queue_map_set() function, thus can be made a pointer to const to
indicate that function is treating the pointed value read-only. This in
general makes the code easier to follow and a bit safer.
Signed-off-by: Krzysztof Kozlowski <krzysztof.kozlowski@oss.qualcomm.com>
Reviewed-by: Luo Jie <jie.luo@oss.qualcomm.com>
Link: https://patch.msgid.link/20260702094908.79859-4-krzysztof.kozlowski@oss.qualcomm.com
Signed-off-by: Paolo Abeni <pabeni@redhat.com>
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There is no benefit in marking "const" a pass-by-value (not a pointer)
function argument, because it is passed as a copy on the stack. No code
readability improvements, no additional compiler-time safety for misuse.
Drop such redundant "const".
Signed-off-by: Krzysztof Kozlowski <krzysztof.kozlowski@oss.qualcomm.com>
Reviewed-by: Luo Jie <jie.luo@oss.qualcomm.com>
Link: https://patch.msgid.link/20260702094908.79859-3-krzysztof.kozlowski@oss.qualcomm.com
Signed-off-by: Paolo Abeni <pabeni@redhat.com>
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Right now dclk_vop2_src is not allowed to change its parent, while
the other two dclks are allowed to do this.
All three VPs can drive non-static outputs (HDMI, DP, eDP) and even the
eDP can also support full DP connections (though no DP+).
Therefore remove the CLK_SET_RATE_NO_REPARENT flag, to allow VP2 the same
flexibility in acquiring its clock rate.
Tested-by: Quentin Schulz <quentin.schulz@cherry.de> # RK3588 Tiger w/ DP
Signed-off-by: Heiko Stuebner <heiko.stuebner@cherry.de>
Reviewed-by: Quentin Schulz <quentin.schuz@cherry.de>
Tested-by: Chris Morgan <macromorgan@hotmail.com>
Link: https://patch.msgid.link/20260304121426.1184680-3-heiko@sntech.de
Signed-off-by: Heiko Stuebner <heiko@sntech.de>
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dclk_vop2_src currently has the CLK_SET_RATE_PARENT flag set, which is
very different from dclk_vop0_src or dclk_vop1_src, which don't have it.
With this flag in dclk_vop2_src, actually setting the clock then results
in a lot of other peripherals breaking, because setting the rate results
in the PLL source getting changed:
[ 14.898718] clk_core_set_rate_nolock: setting rate for dclk_vop2 to 152840000
[ 15.155017] clk_change_rate: setting rate for pll_gpll to 1680000000
[ clk adjusting every gpll user ]
This includes possibly the other vops, i2s, spdif and even the uarts.
Among other possible things, this breaks the uart console on a board
I use. Sometimes it recovers later on, but there will be a big block
of garbled output for a while at least.
Shared PLLs should not be changed by individual users, so drop this flag
from dclk_vop2_src.
Fixes: f1c506d152ff ("clk: rockchip: add clock controller for the RK3588")
Cc: stable@vger.kernel.org
Tested-by: Quentin Schulz <quentin.schulz@cherry.de> # RK3588 Tiger w/ DP
Signed-off-by: Heiko Stuebner <heiko.stuebner@cherry.de>
Reviewed-by: Quentin Schulz <quentin.schulz@cherry.de>
Tested-by: Chris Morgan <macromorgan@hotmail.com>
Link: https://patch.msgid.link/20260304121426.1184680-2-heiko@sntech.de
Signed-off-by: Heiko Stuebner <heiko@sntech.de>
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Up to now, rate groups could only contain vports from the same E-Switch.
This patch relaxes that restriction if the device supports it
(HCA_CAP.esw_cross_esw_sched == true) and the right conditions are met:
- Link Aggregation (LAG) is enabled.
- The E-Switches are from the same shared devlink device.
Signed-off-by: Cosmin Ratiu <cratiu@nvidia.com>
Reviewed-by: Carolina Jubran <cjubran@nvidia.com>
Signed-off-by: Tariq Toukan <tariqt@nvidia.com>
Link: https://patch.msgid.link/20260701073254.754518-13-tariqt@nvidia.com
Signed-off-by: Paolo Abeni <pabeni@redhat.com>
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E-Switch QoS domains were added with the intention of eventually
implementing shared qos domains to support cross-esw scheduling in the
previous approach ([1]), but they are no longer necessary in the new
approach.
Remove QoS domains and switch to using the shd lock for protecting
against concurrent QoS modifications.
Enable the supported_cross_device_rate_nodes devlink ops attribute so
that all calls originating from devlink rate acquire the shd lock. Only
the additional entry points into QoS need to acquire the shd lock.
The wrinkle is that since shd can be NULL (e.g. on older HW without
serial number available), there needs to be a fallback locking
mechanism. The devlink instance lock cannot be used, as some code paths
into QoS (get, set & modify vport rate) happen with RTNL held, and the
existing devlink -> RTNL order prevents devlink lock usage there.
The other two options are either esw->state_lock or a new lock as
fallback when shd is NULL. This patch adds esw->state_lock, which
implies:
- 3 new lock/unlock helper pairs to acquire/release the missing lock:
- esw_qos_{,un}lock: acquire/release esw->state_lock when shd is NULL.
- esw_qos_shd_{,un}lock: when esw->state_lock is already held.
- esw_qos_devlink_{,un}lock: when shd is already held.
- esw_assert_qos_lock_held now asserts esw->state_lock is held when shd
is NULL.
Use the corresponding lock/unlock function in all places where either
shd or state_lock would need to be acquired.
Document all of this trickery next to esw_assert_qos_lock_held.
Enabling supported_cross_device_rate_nodes now is safe, because
mlx5_esw_qos_vport_update_parent rejects cross-esw parent updates.
This will change in the next patch.
[1]
https://lore.kernel.org/netdev/20250213180134.323929-1-tariqt@nvidia.com/
Signed-off-by: Cosmin Ratiu <cratiu@nvidia.com>
Reviewed-by: Carolina Jubran <cjubran@nvidia.com>
Signed-off-by: Tariq Toukan <tariqt@nvidia.com>
Link: https://patch.msgid.link/20260701073254.754518-12-tariqt@nvidia.com
Signed-off-by: Paolo Abeni <pabeni@redhat.com>
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In commit [1] the concept of the root node in the qos hierarchy was
removed due to a bug with how tx_share worked. The side effect is that
in many places, there are now corner cases related to parent handling.
However, since that change, support for tc_bw was added and now, with
upcoming cross-esw support, the code is about to become even more
complicated, increasing the number of such corner cases.
Bring back the concept of the root node, to which all esw vports and
nodes are connected to. This benefits multiple operations which can
assume there's always a valid parent and don't have to do ternary
gymnastics to determine the correct esw to talk to.
As side effect, there's no longer a need to store the groups in the
qos domain, since normalization can simply iterate over all children of
the root node. Normalization gets simplified as a result.
There should be no functionality changes as a result of this change.
[1] commit 330f0f6713a3 ("net/mlx5: Remove default QoS group and attach
vports directly to root TSAR")
Signed-off-by: Cosmin Ratiu <cratiu@nvidia.com>
Reviewed-by: Carolina Jubran <cjubran@nvidia.com>
Signed-off-by: Tariq Toukan <tariqt@nvidia.com>
Link: https://patch.msgid.link/20260701073254.754518-11-tariqt@nvidia.com
Signed-off-by: Paolo Abeni <pabeni@redhat.com>
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Qos cleanup is a complex affair, because of the two modes of operation
(legacy and switchdev).
Leaf QoS is removed:
1. In legacy mode by esw_vport_cleanup() -> mlx5_esw_qos_vport_disable()
2. In switchdev mode by mlx5_esw_offloads_devlink_port_unregister() ->
mlx5_esw_qos_vport_update_parent(). A little later in the same flow, the
calls in 1 happen but they are noops.
Zooming out a bit, from both mlx5_eswitch_disable_locked() and
mlx5_eswitch_disable_sriov() the leaves are destroyed before the nodes,
which is the reverse of what should be.
For SFs there's no devl_rate_nodes_destroy() call to unparent the
affected leaf.
Sanitize all of this by:
1. Destroying nodes before leaves in both legacy and switchdev mode.
2. Only removing vport qos from esw_vport_cleanup(), reachable from both
legacy and switchdev and also reachable by SF removal.
3. Unexpose mlx5_esw_qos_vport_update_parent(), which becomes internal
to qos.
4. Remove the WARN in mlx5_esw_qos_vport_disable().
This also takes care of a theoretical corner case, when
mlx5_esw_qos_vport_update_parent() tried to reattach the vport to
the original parent on failure, which can fail as well, leaving the
vport in a broken state.
Signed-off-by: Cosmin Ratiu <cratiu@nvidia.com>
Reviewed-by: Carolina Jubran <cjubran@nvidia.com>
Signed-off-by: Tariq Toukan <tariqt@nvidia.com>
Link: https://patch.msgid.link/20260701073254.754518-10-tariqt@nvidia.com
Signed-off-by: Paolo Abeni <pabeni@redhat.com>
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Previously, the master device of the uplink netdev was queried for its
maximum link speed from the QoS layer, requiring the uplink_netdev mutex
and possibly the RTNL (if the call originated from the TC matchall
layer).
Acquiring these locks here is risky, as lock cycles could form. The
locking for the QoS layer is about to change, so to avoid issues,
replace the code querying the LAG's max link speed with the existing
infrastructure added in commit [1].
This simplifies this part and avoids potential lock cycles.
One caveat is that there's a new edge case, when the bond device is not
fully formed to represent the LAG device, the speed isn't calculated and
is left at 0. This now handled explicitly.
[1] commit f0b2fde98065 ("net/mlx5: Add support for querying bond
speed")
Signed-off-by: Cosmin Ratiu <cratiu@nvidia.com>
Reviewed-by: Carolina Jubran <cjubran@nvidia.com>
Signed-off-by: Tariq Toukan <tariqt@nvidia.com>
Link: https://patch.msgid.link/20260701073254.754518-9-tariqt@nvidia.com
Signed-off-by: Paolo Abeni <pabeni@redhat.com>
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Check return value of rx/tx initialization functions and abort probing
if either one fails.
Add error handling labels to deallocate resources before returning the
error.
Signed-off-by: Prashant Rahul <prashantrahul23@gmail.com>
Tested-by: Klara Modin <klarasomdin@gmail.com>
Link: https://patch.msgid.link/20260702-staging-driver-octeon-panic-v2-4-2c2b6ae086dd@gmail.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Instead of calling panic(), log and propagate the error upwards for
better error handling.
Pass platform_device to tx initializer to match the rx
initializer interface and to log device specific failures.
Signed-off-by: Prashant Rahul <prashantrahul23@gmail.com>
Tested-by: Klara Modin <klarasmodin@gmail.com>
Tested-by: Klara Modin <klarasomdin@gmail.com>
Link: https://patch.msgid.link/20260702-staging-driver-octeon-panic-v2-3-2c2b6ae086dd@gmail.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Instead of calling panic(), log and propagate the error upwards for
better error handling.
Signed-off-by: Prashant Rahul <prashantrahul23@gmail.com>
Tested-by: Klara Modin <klarasmodin@gmail.com>
Tested-by: Klara Modin <klarasomdin@gmail.com>
Link: https://patch.msgid.link/20260702-staging-driver-octeon-panic-v2-2-2c2b6ae086dd@gmail.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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