And make an explicit constant for zero too. This allows for easier type
checking of the parameter.
Note: tty_struct::flow_change is kept as int because include/tty.h
(tty_struct) doesn't see tty/tty.h (this enum).
Signed-off-by: "Jiri Slaby (SUSE)" <jirislaby@kernel.org>
Link: https://lore.kernel.org/r/20230919085156.1578-13-jirislaby@kernel.org
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
An ndash used instead of a single dash renders a bullet to the result.
So use only single dashes in kernel-doc.
Signed-off-by: "Jiri Slaby (SUSE)" <jirislaby@kernel.org>
Link: https://lore.kernel.org/r/20230919085156.1578-11-jirislaby@kernel.org
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
tty_kref_get() is already included in Documentation, but is not properly
formatted. Fix this.
tty_get_baud_rate() is neither properly formatted, nor is included. Fix
both.
Signed-off-by: "Jiri Slaby (SUSE)" <jirislaby@kernel.org>
Link: https://lore.kernel.org/r/20230919085156.1578-10-jirislaby@kernel.org
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
The ioctl helpers are well documented, except they are not plugged in
the Documentation. So fix up the minor issues in the kernel-doc and plug
it in.
The minor issues include:
* bad \t on every line (sphinx misinterprets the description otherwise)
* missing colon after Return
* superfluous \n after the comment
* make some struct members and constants a hyperlink
* and so on
Perhaps better to use --word-diff if one wants to see the "real"
changes.
Signed-off-by: "Jiri Slaby (SUSE)" <jirislaby@kernel.org>
Link: https://lore.kernel.org/r/20230919085156.1578-9-jirislaby@kernel.org
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
If tty_{,un}throttle_safe() returned true on success (similar to
*_trylock()), it would make the conditions in callers more obvious. So
perform the switch to these inverted values (and fix the callers).
Signed-off-by: "Jiri Slaby (SUSE)" <jirislaby@kernel.org>
Link: https://lore.kernel.org/r/20230919085156.1578-8-jirislaby@kernel.org
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
They return 0 or 1 -- a boolean value, so make it clear than noone
should expect negative or other values.
Signed-off-by: "Jiri Slaby (SUSE)" <jirislaby@kernel.org>
Link: https://lore.kernel.org/r/20230919085156.1578-7-jirislaby@kernel.org
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This change gets rid of the complicated exit from the loops. It can be
done much easier using do-while loops.
Signed-off-by: "Jiri Slaby (SUSE)" <jirislaby@kernel.org>
Link: https://lore.kernel.org/r/20230919085156.1578-6-jirislaby@kernel.org
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Make "no numbers available" a fast quit from the function. And do the
heavy work outside the 'if'. This makes the code more understandable and
conforming to the common kernel coding style.
Signed-off-by: "Jiri Slaby (SUSE)" <jirislaby@kernel.org>
Reviewed-by: Ilpo Järvinen <ilpo.jarvinen@linux.intel.com>
Link: https://lore.kernel.org/r/20230919085156.1578-5-jirislaby@kernel.org
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
n is a minimum of:
* available chars in the ring buffer
* available chars in the ring buffer till the end of the ring buffer
* requested number (*nr)
We can use min3() for that instead of two min()s.
Signed-off-by: "Jiri Slaby (SUSE)" <jirislaby@kernel.org>
Link: https://lore.kernel.org/r/20230919085156.1578-4-jirislaby@kernel.org
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
The value stored to the current 'retval' is number of characters. It is
both obtained and put to user as unsigned. So make its type unsigned.
And provided it's not a "return value" per se, rename it to 'num'.
Signed-off-by: "Jiri Slaby (SUSE)" <jirislaby@kernel.org>
Link: https://lore.kernel.org/r/20230919085156.1578-3-jirislaby@kernel.org
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
In n_tty_read(), there is a separate int variable 'c' and is used only
to hold an int value returned from job_control(). There is also a
'retval' variable typed ssize_t. So drop this single occurrence of 'c'
and reuse 'retval' which is used on all other places to hold the value
returned from n_tty_read().
Note that 'retval' needs not be initialized now. Drop that.
Signed-off-by: "Jiri Slaby (SUSE)" <jirislaby@kernel.org>
Link: https://lore.kernel.org/r/20230919085156.1578-2-jirislaby@kernel.org
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Make the error messages format unified by switching to use
dev_err_probe() where it makes sense.
This also helps simplifing the code.
Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Reviewed-by: Florian Fainelli <florian.fainelli@broadcom.com>
Link: https://lore.kernel.org/r/20230918103648.1185663-1-andriy.shevchenko@linux.intel.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Lukasz Majewski says:
====================
net: dsa: hsr: Enable HSR HW offloading for KSZ9477
This patch series provides support for HSR HW offloading in KSZ9477
switch IC.
To test this feature:
ip link add name hsr0 type hsr slave1 lan1 slave2 lan2 supervision 45 version 1
ip link set dev lan1 up
ip link set dev lan2 up
ip a add 192.168.0.1/24 dev hsr0
ip link set dev hsr0 up
To remove HSR network device:
ip link del hsr0
To test if one can adjust MAC address:
ip link set lan2 address 00:01:02:AA:BB:CC
It is also possible to create another HSR interface, but it will
only support HSR is software - e.g.
ip link add name hsr1 type hsr slave1 lan3 slave2 lan4 supervision 45 version 1
Test HW:
Two KSZ9477-EVB boards with HSR ports set to "Port1" and "Port2".
Performance SW used:
nuttcp -S --nofork
nuttcp -vv -T 60 -r 192.168.0.2
nuttcp -vv -T 60 -t 192.168.0.2
Code: v6.6.0-rc2+ Linux net-next repository
SHA1: 5a1b322cb0
Tested HSR v0 and v1
Results:
With KSZ9477 offloading support added: RX: 100 Mbps TX: 98 Mbps
With no offloading RX: 63 Mbps TX: 63 Mbps
====================
Link: https://lore.kernel.org/r/20230922133108.2090612-1-lukma@denx.de
Signed-off-by: Paolo Abeni <pabeni@redhat.com>
This patch adds functions for providing in KSZ9477 switch HSR
(High-availability Seamless Redundancy) hardware offloading.
According to AN3474 application note following features are provided:
- TX packet duplication from host to switch (NETIF_F_HW_HSR_DUP)
- RX packet duplication discarding
- Prevention of packet loop
For last two ones - there is a probability that some packets will not
be filtered in HW (in some special cases - described in AN3474).
Hence, the HSR core code shall be used to discard those not caught frames.
Moreover, some switch registers adjustments are required - like setting
MAC address of HSR network interface.
Additionally, the KSZ9477 switch has been configured to forward frames
between HSR ports (e.g. 1,2) members to provide support for
NETIF_F_HW_HSR_FWD flag.
Join and leave functions are written in a way, that are executed with
single port - i.e. configuration is NOT done only when second HSR port
is configured.
Co-developed-by: Vladimir Oltean <vladimir.oltean@nxp.com>
Signed-off-by: Vladimir Oltean <vladimir.oltean@nxp.com>
Signed-off-by: Lukasz Majewski <lukma@denx.de>
Reviewed-by: Vladimir Oltean <vladimir.oltean@nxp.com>
Signed-off-by: Paolo Abeni <pabeni@redhat.com>
Defining macros which have the same name but different values is bad
practice, because it makes it hard to avoid code duplication. The same
code does different things, depending on the file it's placed in.
Case in point, we want to access REG_SW_MAC_ADDR from ksz_common.c, but
currently we can't, because we don't know which kszXXXX_reg.h to include
from the common code.
Remove the REG_SW_MAC_ADDR_{0..5} macros from ksz8795_reg.h and
ksz9477_reg.h, and re-add this register offset to the dev->info->regs[]
array.
Signed-off-by: Vladimir Oltean <vladimir.oltean@nxp.com>
Signed-off-by: Lukasz Majewski <lukma@denx.de>
Reviewed-by: Florian Fainelli <florian.fainelli@broadcom.com>
Reviewed-by: Vladimir Oltean <vladimir.oltean@nxp.com>
Signed-off-by: Paolo Abeni <pabeni@redhat.com>
The KSZ9477 has support for HSR (High-Availability Seamless Redundancy).
One of its offloading (i.e. performed in the switch IC hardware) features
is to duplicate received frame to both HSR aware switch ports.
To achieve this goal - the tail TAG needs to be modified. To be more
specific, both ports must be marked as destination (egress) ones.
The NETIF_F_HW_HSR_DUP flag indicates that the device supports HSR and
assures (in HSR core code) that frame is sent only once from HOST to
switch with tail tag indicating both ports.
Signed-off-by: Lukasz Majewski <lukma@denx.de>
Reviewed-by: Florian Fainelli <florian.fainelli@broadcom.com>
Reviewed-by: Vladimir Oltean <vladimir.oltean@nxp.com>
Signed-off-by: Paolo Abeni <pabeni@redhat.com>
In some cases, drivers may need to veto the changing of a MAC address on
a user port. Such is the case with KSZ9477 when it offloads a HSR device,
because it programs the MAC address of multiple ports to a shared
hardware register. Those ports need to have equal MAC addresses for the
lifetime of the HSR offload.
Signed-off-by: Vladimir Oltean <vladimir.oltean@nxp.com>
Signed-off-by: Lukasz Majewski <lukma@denx.de>
Reviewed-by: Florian Fainelli <florian.fainelli@broadcom.com>
Reviewed-by: Vladimir Oltean <vladimir.oltean@nxp.com>
Signed-off-by: Paolo Abeni <pabeni@redhat.com>
Drivers can provide meaningful error messages which state a reason why
they can't perform an offload, and dsa_slave_changeupper() already has
the infrastructure to propagate these over netlink rather than printing
to the kernel log. So pass the extack argument and modify the xrs700x
driver's port_hsr_join() prototype.
Also take the opportunity and use the extack for the 2 -EOPNOTSUPP cases
from xrs700x_hsr_join().
Signed-off-by: Vladimir Oltean <vladimir.oltean@nxp.com>
Signed-off-by: Lukasz Majewski <lukma@denx.de>
Reviewed-by: Florian Fainelli <florian.fainelli@broadcom.com>
Reviewed-by: Vladimir Oltean <vladimir.oltean@nxp.com>
Signed-off-by: Paolo Abeni <pabeni@redhat.com>
kernel.spec is the last piece that resides outside the rpmbuild/
directory. Move all the RPM-related files to rpmbuild/ consistently.
Signed-off-by: Masahiro Yamada <masahiroy@kernel.org>
Reviewed-by: Nathan Chancellor <nathan@kernel.org>
Tested-by: Nathan Chancellor <nathan@kernel.org>
Since 'age' of 'struct rtl_bssid_entry' is in jiffies, prefer 'unsigned
long' over 'u32' to avoid possible truncation in 'rtl_collect_scan_list()'
and thus weird result in 'rtl_scan_list_expire()'. Compile tested only.
Signed-off-by: Dmitry Antipov <dmantipov@yandex.ru>
Acked-by: Ping-Ke Shih <pkshih@realtek.com>
Signed-off-by: Kalle Valo <kvalo@kernel.org>
Link: https://lore.kernel.org/r/20230929154524.222498-1-dmantipov@yandex.ru
In 'rtl92c_dm_check_edca_turbo()', 'rtl88e_dm_check_edca_turbo()',
and 'rtl8723e_dm_check_edca_turbo()', the DL limit should be set
from the corresponding field of 'rtlpriv->btcoexist' rather than
UL. Compile tested only.
Fixes: 0529c6b817 ("rtlwifi: rtl8723ae: Update driver to match 06/28/14 Realtek version")
Fixes: c151aed6aa ("rtlwifi: rtl8188ee: Update driver to match Realtek release of 06282014")
Fixes: beb5bc4020 ("rtlwifi: rtl8192c-common: Convert common dynamic management routines for addition of rtl8192se and rtl8192de")
Signed-off-by: Dmitry Antipov <dmantipov@yandex.ru>
Acked-by: Ping-Ke Shih <pkshih@realtek.com>
Signed-off-by: Kalle Valo <kvalo@kernel.org>
Link: https://lore.kernel.org/r/20230928052327.120178-1-dmantipov@yandex.ru
On Mediatek vendor driver[1], MT7620 (RT6352) uses different RSSI
base value '-2' compared to the other RT2x00 chips. This patch
introduces the SoC specific base value to fix the low RSSI value
reports on MT7620.
[1] Found on MT76x2E_MT7620_LinuxAP_V3.0.4.0_P3 ConvertToRssi().
Signed-off-by: Shiji Yang <yangshiji66@outlook.com>
Acked-by: Stanislaw Gruszka <stf_xl@wp.pl>
Signed-off-by: Kalle Valo <kvalo@kernel.org>
Link: https://lore.kernel.org/r/TYAP286MB031571CDB146C414A908A66DBCFEA@TYAP286MB0315.JPNP286.PROD.OUTLOOK.COM
This improves 160MHz performance degradation with certain APs.
Some ICs transmit preamble that are hard to decode by others, continuous
retries then yield low throughput. Fix it with pre-calculated antenna
matrices.
Signed-off-by: Po-Hao Huang <phhuang@realtek.com>
Signed-off-by: Ping-Ke Shih <pkshih@realtek.com>
Signed-off-by: Kalle Valo <kvalo@kernel.org>
Link: https://lore.kernel.org/r/20230929004024.7504-3-pkshih@realtek.com
Rename support_ul_tb_ctrl to waveform_ctrl since we need to do more
trigger based control and the naming could be confusing. Move related
code to leaf function so we make each functions separate and can be
easier to maintain.
Signed-off-by: Po-Hao Huang <phhuang@realtek.com>
Signed-off-by: Ping-Ke Shih <pkshih@realtek.com>
Signed-off-by: Kalle Valo <kvalo@kernel.org>
Link: https://lore.kernel.org/r/20230929004024.7504-2-pkshih@realtek.com
Update TX power tables to RF version R34.
* tweak values of CN for its new regulation
* add TX power by rate table for RFE (RF Front End) type 2
* add TX shape table for RU limit
Signed-off-by: Zong-Zhe Yang <kevin_yang@realtek.com>
Signed-off-by: Ping-Ke Shih <pkshih@realtek.com>
Signed-off-by: Kalle Valo <kvalo@kernel.org>
Update TX power tables to RF version R35.
* tweak values of CN for its new regulation
* add TX shape table for RU limit
Signed-off-by: Zong-Zhe Yang <kevin_yang@realtek.com>
Signed-off-by: Ping-Ke Shih <pkshih@realtek.com>
Signed-off-by: Kalle Valo <kvalo@kernel.org>
Update TX power tables to RF version R67.
* tweak values of CN for its new regulation
* configure values of Thailand for its regulation
* add TX shape table for RU limit
Signed-off-by: Zong-Zhe Yang <kevin_yang@realtek.com>
Signed-off-by: Ping-Ke Shih <pkshih@realtek.com>
Signed-off-by: Kalle Valo <kvalo@kernel.org>
Realtek RFE (RF Front End) parameters can consider Thailand individually
now, so we add it into regulation type enum. Then, we map country code TH
to RTW89_ETSI/RTW89_THAILAND according to band. The RF TX power tables will
add entries for RTW89_THAILAND in the following.
Signed-off-by: Zong-Zhe Yang <kevin_yang@realtek.com>
Signed-off-by: Ping-Ke Shih <pkshih@realtek.com>
Signed-off-by: Kalle Valo <kvalo@kernel.org>
Modify modpost to use binary search for converting addresses back
into symbol references. Previously it used linear search.
This change saves a few seconds of wall time for defconfig builds,
but can save several minutes on allyesconfigs.
Before:
$ make LLVM=1 -j128 allyesconfig vmlinux -s KCFLAGS="-Wno-error"
$ time scripts/mod/modpost -M -m -a -N -o vmlinux.symvers vmlinux.o
198.38user 1.27system 3:19.71elapsed
After:
$ make LLVM=1 -j128 allyesconfig vmlinux -s KCFLAGS="-Wno-error"
$ time scripts/mod/modpost -M -m -a -N -o vmlinux.symvers vmlinux.o
11.91user 0.85system 0:12.78elapsed
Signed-off-by: Jack Brennen <jbrennen@google.com>
Tested-by: Nick Desaulniers <ndesaulniers@google.com>
Signed-off-by: Masahiro Yamada <masahiroy@kernel.org>
The One Mix 2S is a mini laptop with a 1200x1920 portrait screen
mounted in a landscape oriented clamshell case. Because of the too
generic DMI strings this entry is also doing bios-date matching.
Signed-off-by: Kai Uwe Broulik <foss-linux@broulik.de>
Reviewed-by: Hans de Goede <hdegoede@redhat.com>
Signed-off-by: Liviu Dudau <liviu.dudau@arm.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20231001114710.336172-1-foss-linux@broulik.de
Add a quirk for a copper SFP that identifies itself as "FS" "SFP-2.5G-T".
This module's PHY is inaccessible, and can only run at 2500base-X with the
host without negotiation. Add a quirk to enable the 2500base-X interface mode
with 2500base-T support and disable auto negotiation.
Signed-off-by: Raju Lakkaraju <Raju.Lakkaraju@microchip.com>
Link: https://lore.kernel.org/r/20230925080059.266240-1-Raju.Lakkaraju@microchip.com
Signed-off-by: Paolo Abeni <pabeni@redhat.com>
The expectation is that placing a task at avg_vruntime() makes it
eligible. Turns out there is a corner case where this is not the case.
Specifically, avg_vruntime() relies on the fact that integer division
is a flooring function (eg. it discards the remainder). By this
property the value returned is slightly left of the true average.
However! when the average is a negative (relative to min_vruntime) the
effect is flipped and it becomes a ceil, with the result that the
returned value is just right of the average and thus not eligible.
Fixes: af4cf40470 ("sched/fair: Add cfs_rq::avg_vruntime")
Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org>
Tasks that never consume their full slice would not update their slice value.
This means that tasks that are spawned before the sysctl scaling keep their
original (UP) slice length.
Fixes: 147f3efaa2 ("sched/fair: Implement an EEVDF-like scheduling policy")
Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org>
Link: https://lkml.kernel.org/r/20230915124822.847197830@noisy.programming.kicks-ass.net
The function doesn't modify the addresses passed as input, mark them
as 'const' to make that clear.
Signed-off-by: Beniamino Galvani <b.galvani@gmail.com>
Reviewed-by: Guillaume Nault <gnault@redhat.com>
Link: https://lore.kernel.org/r/20230924153014.786962-1-b.galvani@gmail.com
Signed-off-by: Paolo Abeni <pabeni@redhat.com>
'n_tables' is small, UDP_TUNNEL_NIC_MAX_TABLES = 4 as a maximum. So there
is no real point to allocate the 'entries' pointers array with a dedicate
memory allocation.
Using a flexible array for struct udp_tunnel_nic->entries avoids the
overhead of an additional memory allocation.
This also saves an indirection when the array is accessed.
Finally, __counted_by() can be used for run-time bounds checking if
configured and supported by the compiler.
Signed-off-by: Christophe JAILLET <christophe.jaillet@wanadoo.fr>
Reviewed-by: Willem de Bruijn <willemb@google.com>
Link: https://lore.kernel.org/r/4a096ba9cf981a588aa87235bb91e933ee162b3d.1695542544.git.christophe.jaillet@wanadoo.fr
Signed-off-by: Paolo Abeni <pabeni@redhat.com>
As we don't specify the MTU in the driver, the framework
will fall back to 1500 bytes and this doesn't work very
well when we try to attach a DSA switch:
eth1: mtu greater than device maximum
ixp4xx_eth c800a000.ethernet eth1: error -22 setting
MTU to 1504 to include DSA overhead
I checked the developer docs and the hardware can actually
do really big frames, so update the driver accordingly.
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
Link: https://lore.kernel.org/r/20230923-ixp4xx-eth-mtu-v1-1-9e88b908e1b2@linaro.org
Signed-off-by: Paolo Abeni <pabeni@redhat.com>
The usage of '&' before the array parameter is redundant because '&array'
is equivalent to 'array'. Therefore, there is no need to include '&'
before the array parameter. In fact, using '&' can cause more confusion,
especially for individuals who are not familiar with the address-of
operation for arrays. They might mistakenly believe that one is different
from the other and spend additional time realizing that they are actually
the same.
Harmonizing the style by removing the unnecessary '&' would save time for
those individuals.
Signed-off-by: Wang Jinchao <wangjinchao@xfusion.com>
Signed-off-by: Ingo Molnar <mingo@kernel.org>
Link: https://lore.kernel.org/r/ZMt24BGEX9IhPSY6@fedora
impUse variable length array in struct fileIdentDesc is never used.
It serves only for documentation purposes of the on-disk format. Remove
it from the struct so that it doesn't confuse the compiler and
reviewers.
Reported-by: "Gustavo A. R. Silva" <gustavoars@kernel.org>
References: https://lore.kernel.org/all/ZRrsYkKIQe8K6F/t@work
Signed-off-by: Jan Kara <jack@suse.cz>
All *.S files under arch/x86/ have been converted to include
<linux/export.h> instead of <asm/export.h>.
Remove <asm/export.h>.
Signed-off-by: Masahiro Yamada <masahiroy@kernel.org>
Signed-off-by: Ingo Molnar <mingo@kernel.org>
Link: https://lore.kernel.org/r/20230806145958.380314-3-masahiroy@kernel.org
The following commit:
ddb5cdbafa ("kbuild: generate KSYMTAB entries by modpost")
deprecated <asm/export.h>, which is now a wrapper of <linux/export.h>.
Use <linux/export.h> in *.S as well as in *.c files.
After all the <asm/export.h> lines are replaced, <asm/export.h> and
<asm-generic/export.h> will be removed.
Signed-off-by: Masahiro Yamada <masahiroy@kernel.org>
Signed-off-by: Ingo Molnar <mingo@kernel.org>
Link: https://lore.kernel.org/r/20230806145958.380314-2-masahiroy@kernel.org
The flexible structure (a structure that contains a flexible-array member
at the end) `qed_ll2_tx_packet` is nested within the second layer of
`struct qed_ll2_info`:
struct qed_ll2_tx_packet {
...
/* Flexible Array of bds_set determined by max_bds_per_packet */
struct {
struct core_tx_bd *txq_bd;
dma_addr_t tx_frag;
u16 frag_len;
} bds_set[];
};
struct qed_ll2_tx_queue {
...
struct qed_ll2_tx_packet cur_completing_packet;
};
struct qed_ll2_info {
...
struct qed_ll2_tx_queue tx_queue;
struct qed_ll2_cbs cbs;
};
The problem is that member `cbs` in `struct qed_ll2_info` is placed just
after an object of type `struct qed_ll2_tx_queue`, which is in itself
an implicit flexible structure, which by definition ends in a flexible
array member, in this case `bds_set`. This causes an undefined behavior
bug at run-time when dynamic memory is allocated for `bds_set`, which
could lead to a serious issue if `cbs` in `struct qed_ll2_info` is
overwritten by the contents of `bds_set`. Notice that the type of `cbs`
is a structure full of function pointers (and a cookie :) ):
include/linux/qed/qed_ll2_if.h:
107 typedef
108 void (*qed_ll2_complete_rx_packet_cb)(void *cxt,
109 struct qed_ll2_comp_rx_data *data);
110
111 typedef
112 void (*qed_ll2_release_rx_packet_cb)(void *cxt,
113 u8 connection_handle,
114 void *cookie,
115 dma_addr_t rx_buf_addr,
116 bool b_last_packet);
117
118 typedef
119 void (*qed_ll2_complete_tx_packet_cb)(void *cxt,
120 u8 connection_handle,
121 void *cookie,
122 dma_addr_t first_frag_addr,
123 bool b_last_fragment,
124 bool b_last_packet);
125
126 typedef
127 void (*qed_ll2_release_tx_packet_cb)(void *cxt,
128 u8 connection_handle,
129 void *cookie,
130 dma_addr_t first_frag_addr,
131 bool b_last_fragment, bool b_last_packet);
132
133 typedef
134 void (*qed_ll2_slowpath_cb)(void *cxt, u8 connection_handle,
135 u32 opaque_data_0, u32 opaque_data_1);
136
137 struct qed_ll2_cbs {
138 qed_ll2_complete_rx_packet_cb rx_comp_cb;
139 qed_ll2_release_rx_packet_cb rx_release_cb;
140 qed_ll2_complete_tx_packet_cb tx_comp_cb;
141 qed_ll2_release_tx_packet_cb tx_release_cb;
142 qed_ll2_slowpath_cb slowpath_cb;
143 void *cookie;
144 };
Fix this by moving the declaration of `cbs` to the middle of its
containing structure `qed_ll2_info`, preventing it from being
overwritten by the contents of `bds_set` at run-time.
This bug was introduced in 2017, when `bds_set` was converted to a
one-element array, and started to be used as a Variable Length Object
(VLO) at run-time.
Fixes: f5823fe689 ("qed: Add ll2 option to limit the number of bds per packet")
Cc: stable@vger.kernel.org
Signed-off-by: Gustavo A. R. Silva <gustavoars@kernel.org>
Reviewed-by: Kees Cook <keescook@chromium.org>
Reviewed-by: Simon Horman <horms@kernel.org>
Link: https://lore.kernel.org/r/ZQ+Nz8DfPg56pIzr@work
Signed-off-by: Paolo Abeni <pabeni@redhat.com>
Since the size value is added to the base address to yield the last valid
byte address of the GDT, the current size value of startup_gdt_descr is
incorrect (too large by one), fix it.
[ mingo: This probably never mattered, because startup_gdt[] is only used
in a very controlled fashion - but make it consistent nevertheless. ]
Fixes: 866b556efa ("x86/head/64: Install startup GDT")
Signed-off-by: Yuntao Wang <ytcoode@gmail.com>
Signed-off-by: Ingo Molnar <mingo@kernel.org>
Cc: "H. Peter Anvin" <hpa@zytor.com>
Link: https://lore.kernel.org/r/20230807084547.217390-1-ytcoode@gmail.com
Update the checking of return values from debugfs_create_file()
and debugfs_create_dir() to use IS_ERR().
Signed-off-by: Atul Kumar Pant <atulpant.linux@gmail.com>
Signed-off-by: Ingo Molnar <mingo@kernel.org>
Acked-by: Waiman Long <longman@redhat.com>
Link: https://lore.kernel.org/r/20230807121834.7438-1-atulpant.linux@gmail.com
Eric Dumazet says:
====================
tcp_metrics: four fixes
Looking at an inconclusive syzbot report, I was surprised
to see that tcp_metrics cache on my host was full of
useless entries, even though I have
/proc/sys/net/ipv4/tcp_no_metrics_save set to 1.
While looking more closely I found a total of four issues.
====================
Link: https://lore.kernel.org/r/20230922220356.3739090-1-edumazet@google.com
Signed-off-by: Paolo Abeni <pabeni@redhat.com>
This is inspired by several syzbot reports where
tcp_metrics_flush_all() was seen in the traces.
We can avoid acquiring tcp_metrics_lock for empty buckets,
and we should add one cond_resched() to break potential long loops.
Signed-off-by: Eric Dumazet <edumazet@google.com>
Reviewed-by: David Ahern <dsahern@kernel.org>
Acked-by: Neal Cardwell <ncardwell@google.com>
Signed-off-by: Paolo Abeni <pabeni@redhat.com>
