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Switch character types to u8 and sizes to size_t. To conform to
characters/sizes in the rest of the tty layer.
Signed-off-by: "Jiri Slaby (SUSE)" <jirislaby@kernel.org>
Cc: Vaibhav Gupta <vaibhavgupta40@gmail.com>
Cc: Jens Taprogge <jens.taprogge@taprogge.org>
Cc: industrypack-devel@lists.sourceforge.net
Link: https://lore.kernel.org/r/20231206073712.17776-14-jirislaby@kernel.org
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Switch character types to u8 and sizes to size_t. To conform to
characters/sizes in the rest of the tty layer.
Signed-off-by: "Jiri Slaby (SUSE)" <jirislaby@kernel.org>
Cc: Michael Ellerman <mpe@ellerman.id.au>
Cc: Nicholas Piggin <npiggin@gmail.com>
Cc: Christophe Leroy <christophe.leroy@csgroup.eu>
Cc: Amit Shah <amit@kernel.org>
Cc: Arnd Bergmann <arnd@arndb.de>
Cc: Paul Walmsley <paul.walmsley@sifive.com>
Cc: Palmer Dabbelt <palmer@dabbelt.com>
Cc: Albert Ou <aou@eecs.berkeley.edu>
Cc: linuxppc-dev@lists.ozlabs.org
Cc: virtualization@lists.linux.dev
Cc: linux-riscv@lists.infradead.org
Link: https://lore.kernel.org/r/20231206073712.17776-13-jirislaby@kernel.org
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Switch character types to u8 and sizes to size_t. To conform to
characters/sizes in the rest of the tty layer.
Signed-off-by: "Jiri Slaby (SUSE)" <jirislaby@kernel.org>
Link: https://lore.kernel.org/r/20231206073712.17776-12-jirislaby@kernel.org
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Switch character types to u8 and sizes to size_t. To conform to
characters/sizes in the rest of the tty layer.
Signed-off-by: "Jiri Slaby (SUSE)" <jirislaby@kernel.org>
Cc: Laurentiu Tudor <laurentiu.tudor@nxp.com>
Cc: linuxppc-dev@lists.ozlabs.org
Link: https://lore.kernel.org/r/20231206073712.17776-11-jirislaby@kernel.org
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Switch character types to u8 and sizes to size_t. To conform to
characters/sizes in the rest of the tty layer.
Signed-off-by: "Jiri Slaby (SUSE)" <jirislaby@kernel.org>
Cc: Heiko Carstens <hca@linux.ibm.com>
Cc: Vasily Gorbik <gor@linux.ibm.com>
Cc: Alexander Gordeev <agordeev@linux.ibm.com>
Cc: Christian Borntraeger <borntraeger@linux.ibm.com>
Cc: Sven Schnelle <svens@linux.ibm.com>
Cc: linux-s390@vger.kernel.org
Link: https://lore.kernel.org/r/20231206073712.17776-10-jirislaby@kernel.org
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Switch character types to u8 and sizes to size_t. To conform to
characters/sizes in the rest of the tty layer.
Signed-off-by: "Jiri Slaby (SUSE)" <jirislaby@kernel.org>
Cc: Heiko Carstens <hca@linux.ibm.com>
Cc: Vasily Gorbik <gor@linux.ibm.com>
Cc: Alexander Gordeev <agordeev@linux.ibm.com>
Cc: Christian Borntraeger <borntraeger@linux.ibm.com>
Cc: Sven Schnelle <svens@linux.ibm.com>
Cc: linux-s390@vger.kernel.org
Link: https://lore.kernel.org/r/20231206073712.17776-9-jirislaby@kernel.org
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Switch character types to u8 and sizes to size_t. To conform to
characters/sizes in the rest of the tty layer.
Signed-off-by: "Jiri Slaby (SUSE)" <jirislaby@kernel.org>
Cc: Scott Branden <scott.branden@broadcom.com>
Cc: Broadcom internal kernel review list <bcm-kernel-feedback-list@broadcom.com>
Cc: Arnd Bergmann <arnd@arndb.de>
Link: https://lore.kernel.org/r/20231206073712.17776-8-jirislaby@kernel.org
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Switch character types to u8. To conform to characters in the rest of
the tty layer.
Signed-off-by: "Jiri Slaby (SUSE)" <jirislaby@kernel.org>
Reviewed-by: Geert Uytterhoeven <geert@linux-m68k.org>
Link: https://lore.kernel.org/r/20231206073712.17776-7-jirislaby@kernel.org
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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There are still last minor users in the tty core that still reference
characters by the 'char' type. Switch them to u8.
Signed-off-by: "Jiri Slaby (SUSE)" <jirislaby@kernel.org>
Link: https://lore.kernel.org/r/20231206073712.17776-6-jirislaby@kernel.org
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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tty_operations::send_xchar is one of the last users of 'char' type for
characters in the tty layer. Convert it to u8 now.
Signed-off-by: "Jiri Slaby (SUSE)" <jirislaby@kernel.org>
Cc: Karsten Keil <isdn@linux-pingi.de>
Cc: Ulf Hansson <ulf.hansson@linaro.org>
Cc: Marcel Holtmann <marcel@holtmann.org>
Cc: Johan Hedberg <johan.hedberg@gmail.com>
Cc: Luiz Augusto von Dentz <luiz.dentz@gmail.com>
Cc: netdev@vger.kernel.org
Cc: linux-mmc@vger.kernel.org
Cc: linux-bluetooth@vger.kernel.org
Reviewed-by: Geert Uytterhoeven <geert@linux-m68k.org>
Link: https://lore.kernel.org/r/20231206073712.17776-5-jirislaby@kernel.org
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Both xmit_buf and xmit_fifo of struct tty_port should be u8. To conform
to characters in the rest of the tty layer.
Signed-off-by: "Jiri Slaby (SUSE)" <jirislaby@kernel.org>
Link: https://lore.kernel.org/r/20231206073712.17776-4-jirislaby@kernel.org
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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sdio_in() returns a value returned from sdio_readb(). The latter returns
u8. So should the former. Therefore, switch sdio_in() return type to u8
and all its callers too.
Signed-off-by: "Jiri Slaby (SUSE)" <jirislaby@kernel.org>
Cc: Ulf Hansson <ulf.hansson@linaro.org>
Cc: linux-mmc@vger.kernel.org
Link: https://lore.kernel.org/r/20231206073712.17776-3-jirislaby@kernel.org
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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do_rw_io()'s is_write parameter is boolean, but typed int. Switch to the
former, so that it's obvious. (And the two users too.)
Signed-off-by: "Jiri Slaby (SUSE)" <jirislaby@kernel.org>
Link: https://lore.kernel.org/r/20231206073712.17776-2-jirislaby@kernel.org
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Parse the OPP table from the device tree and use dev_pm_opp_set_rate()
instead of clk_set_rate() to allow making performance state votes
specified in the OPP table (e.g. for power domains and interconnects).
Without an OPP table in the device tree this will behave just as before
this patch.
Signed-off-by: Stephan Gerhold <stephan.gerhold@kernkonzept.com>
Link: https://lore.kernel.org/r/20231128-serial-msm-dvfs-v1-2-4f290d20a4be@kernkonzept.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Document power-domains, operating-points-v2 and interconnects to allow
making performance state votes for certain clock frequencies of the UART
DM controller. The interconnect path to DRAM is needed when UART DM is
used together with a DMA engine.
Voting for these shared resources is necessary to guarantee performance
with power management enabled. Otherwise these resources might run at
minimal performance state which is not sufficient for certain UART
baud rates.
Signed-off-by: Stephan Gerhold <stephan.gerhold@kernkonzept.com>
Reviewed-by: Rob Herring <robh@kernel.org>
Link: https://lore.kernel.org/r/20231128-serial-msm-dvfs-v1-1-4f290d20a4be@kernkonzept.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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sparse reports multiple problems with address space type.
Most problems are linked to missing __iomem qualifier.
Others are caused by dereferencing __iomem addresses.
Fix all this by adding missing __iomem and using ioread32be().
Reported-by: kernel test robot <lkp@intel.com>
Closes: https://lore.kernel.org/oe-kbuild-all/202312050412.zN2PKArS-lkp@intel.com/
Signed-off-by: Christophe Leroy <christophe.leroy@csgroup.eu>
Link: https://lore.kernel.org/r/e49deeb079391ff7273ec32f5563df94cf70bc95.1701781976.git.christophe.leroy@csgroup.eu
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Refer ARM DDI 0487I.a ID081822, D17.3.8, DBGDTRTX_EL0,
"If TXfull is set to 1, set DTRRX and DTRTX to UNKNOWN"
Thus one should always check for TXfull condition before hvc can be
used as an early console. This is similar to what is being done
today in hvc_dcc_console_init() and hvc_dcc_init().
The count 0x4000000 has been obtained from uboot (v2024.01-rc3)
drivers/serial/arm_dcc.c "TIMEOUT_COUNT".
It reads the dcc status and waits for 0x4000000 times for the TX Fifo
to be available before returning an error. Thus, it will prevent DCC
to be used as early console.
Signed-off-by: Ayan Kumar Halder <ayan.kumar.halder@amd.com>
Link: https://lore.kernel.org/r/20231205123534.3376883-1-ayan.kumar.halder@amd.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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The dw-apb-uart also can emulate rs485, so include the rs485
schema to allow validating rs485 properties.
Signed-off-by: Heiko Stuebner <heiko.stuebner@cherry.de>
Acked-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
Link: https://lore.kernel.org/r/20231201140542.323564-1-heiko@sntech.de
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Fix whitespace in include/linux/amba/serial.h to match current kernel
coding standards. Fixes about:
- CHECK: spaces preferred around that '|' (ctx:VxV)
- ERROR: code indent should use tabs where possible
- WARNING: Unnecessary space before function pointer arguments
- WARNING: please, no spaces at the start of a line
Reviewed-by: Linus Walleij <linus.walleij@linaro.org>
Reviewed-by: Ilpo Järvinen <ilpo.jarvinen@linux.intel.com>
Signed-off-by: Théo Lebrun <theo.lebrun@bootlin.com>
Link: https://lore.kernel.org/r/20231130-mbly-uart-v5-1-6566703a04b5@bootlin.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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The last user of virtio_cons_early_init() was dropped in commit
7fb2b2d51244 ("s390/virtio: remove the old KVM virtio transport").
So now, drop virtio_cons_early_init() and the logic and headers behind
too.
Signed-off-by: Jiri Slaby (SUSE) <jirislaby@kernel.org>
Acked-by: Jason Wang <jasowang@redhat.com>
Cc: Richard Henderson <richard.henderson@linaro.org>
Cc: Ivan Kokshaysky <ink@jurassic.park.msu.ru>
Cc: Matt Turner <mattst88@gmail.com>
Cc: Amit Shah <amit@kernel.org>
Cc: Arnd Bergmann <arnd@arndb.de>
Cc: "Michael S. Tsirkin" <mst@redhat.com>
Cc: Xuan Zhuo <xuanzhuo@linux.alibaba.com>
Cc: linux-alpha@vger.kernel.org
Cc: virtualization@lists.linux.dev
Link: https://lore.kernel.org/r/20231130113001.29154-1-jirislaby@kernel.org
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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When using the serial port as RS485 port, the tx statemachine is used to
control the RTS pin to drive the RS485 transceiver TX_EN pin. When the
TTY port is closed in the middle of a transmission (for instance during
userland application crash), imx_uart_shutdown disables the interface
and disables the Transmission Complete interrupt. afer that,
imx_uart_stop_tx bails on an incomplete transmission, to be retriggered
by the TC interrupt. This interrupt is disabled and therefore the tx
statemachine never transitions out of SEND. The statemachine is in
deadlock now, and the TX_EN remains low, making the interface useless.
imx_uart_stop_tx now checks for incomplete transmission AND whether TC
interrupts are enabled before bailing to be retriggered. This makes sure
the state machine handling is reached, and is properly set to
WAIT_AFTER_SEND.
Fixes: cb1a60923609 ("serial: imx: implement rts delaying for rs485")
Signed-off-by: Paul Geurts <paul_geurts@live.nl>
Tested-by: Rasmus Villemoes <rasmus.villemoes@prevas.dk>
Tested-by: Eberhard Stoll <eberhard.stoll@gmx.de>
Link: https://lore.kernel.org/r/AM0PR09MB26758F651BC1B742EB45775995B8A@AM0PR09MB2675.eurprd09.prod.outlook.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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git://git.kernel.org/pub/scm/linux/kernel/git/mmind/linux-rockchip into arm/fixes
Devicetree fixes for the 6.7-cycle.
All over the place this time. From adapting the size of the vdec nodes
on rk3328 and rk3399, fixing some wrong pinctrl settings on rk3128 and
the Turing RK1 board, emmc-settings fixes on rk3588 and interrupt-name
mishaps, down to some dt-cleanups.
Also this adds the missing rockchip,rk3588-pmugrf compatible to the soc
grf binding, that I somehow messed up during the pull requests for the
-rc1 . At least with it included the dt-checker is happier.
* tag 'v6.7-rockchip-dtsfixes1' of git://git.kernel.org/pub/scm/linux/kernel/git/mmind/linux-rockchip:
arm64: dts: rockchip: Fix eMMC Data Strobe PD on rk3588
arm64: dts: rockchip: Fix PCI node addresses on rk3399-gru
arm64: dts: rockchip: drop interrupt-names property from rk3588s dfi
arm64: dts: rockchip: Fix Turing RK1 interrupt pinctrls
ARM: dts: rockchip: Fix sdmmc_pwren's pinmux setting for RK3128
arm64: dts: rockchip: minor whitespace cleanup around '='
ARM: dts: rockchip: minor whitespace cleanup around '='
dt-bindings: soc: rockchip: grf: add rockchip,rk3588-pmugrf
arm64: dts: rockchip: fix rk356x pcie msg interrupt name
arm64: dts: rockchip: Expand reg size of vdec node for RK3399
arm64: dts: rockchip: Expand reg size of vdec node for RK3328
Link: https://lore.kernel.org/r/2709704.mvXUDI8C0e@phil
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
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git://git.kernel.org/pub/scm/linux/kernel/git/daeinki/drm-exynos into drm-fixes
Two fixups
- Fix a potential error pointer dereference by checking the return value
of exynos_drm_crtc_get_by_type() function before accessing to crtc
object.
- Fix a wrong error checking in exynos_drm_dma.c modules, which was reported
by Dan[1]
[1] https://lore.kernel.org/all/33e52277-1349-472b-a55b-ab5c3462bfcf@moroto.mountain/
Signed-off-by: Dave Airlie <airlied@redhat.com>
From: Inki Dae <inki.dae@samsung.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20231207042223.2473706-1-inki.dae@samsung.com
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https://gitlab.freedesktop.org/agd5f/linux into drm-fixes
amd-drm-fixes-6.7-2023-12-06:
amdgpu:
- Disable MCBP on gfx9
- DC vbios fix
- eDP fix
- dml2 UBSAN fix
- SMU 14 fix
- RAS fixes
- dml KASAN/KCSAN fix
- PSP 13 fix
- Clockgating fixes
- Suspend fix
Signed-off-by: Dave Airlie <airlied@redhat.com>
From: Alex Deucher <alexander.deucher@amd.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20231206221102.4995-1-alexander.deucher@amd.com
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git://anongit.freedesktop.org/drm/drm-misc into drm-fixes
drm-misc-fixes for v6.7-rc5:
- Document nouveau's GSP-RM.
- Flush vmm harder on nouveau tu102.
- Panfrost fix for imported dma-buf objects, and device frequency.
- Kconfig Build fix for tc358768.
- Call end_fb_access after atomic commit.
Signed-off-by: Dave Airlie <airlied@redhat.com>
From: Maarten Lankhorst <maarten.lankhorst@linux.intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/05a26dc0-8cf1-4b1f-abb6-3bf471fbfc99@linux.intel.com
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git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net
Pull networking fixes from Jakub Kicinski:
"Including fixes from bpf and netfilter.
Current release - regressions:
- veth: fix packet segmentation in veth_convert_skb_to_xdp_buff
Current release - new code bugs:
- tcp: assorted fixes to the new Auth Option support
Older releases - regressions:
- tcp: fix mid stream window clamp
- tls: fix incorrect splice handling
- ipv4: ip_gre: handle skb_pull() failure in ipgre_xmit()
- dsa: mv88e6xxx: restore USXGMII support for 6393X
- arcnet: restore support for multiple Sohard Arcnet cards
Older releases - always broken:
- tcp: do not accept ACK of bytes we never sent
- require admin privileges to receive packet traces via netlink
- packet: move reference count in packet_sock to atomic_long_t
- bpf:
- fix incorrect branch offset comparison with cpu=v4
- fix prog_array_map_poke_run map poke update
- netfilter:
- three fixes for crashes on bad admin commands
- xt_owner: fix race accessing sk->sk_socket, TOCTOU null-deref
- nf_tables: fix 'exist' matching on bigendian arches
- leds: netdev: fix RTNL handling to prevent potential deadlock
- eth: tg3: prevent races in error/reset handling
- eth: r8169: fix rtl8125b PAUSE storm when suspended
- eth: r8152: improve reset and surprise removal handling
- eth: hns: fix race between changing features and sending
- eth: nfp: fix sleep in atomic for bonding offload"
* tag 'net-6.7-rc5' of git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net: (62 commits)
vsock/virtio: fix "comparison of distinct pointer types lacks a cast" warning
net/smc: fix missing byte order conversion in CLC handshake
net: dsa: microchip: provide a list of valid protocols for xmit handler
drop_monitor: Require 'CAP_SYS_ADMIN' when joining "events" group
psample: Require 'CAP_NET_ADMIN' when joining "packets" group
bpf: sockmap, updating the sg structure should also update curr
net: tls, update curr on splice as well
nfp: flower: fix for take a mutex lock in soft irq context and rcu lock
net: dsa: mv88e6xxx: Restore USXGMII support for 6393X
tcp: do not accept ACK of bytes we never sent
selftests/bpf: Add test for early update in prog_array_map_poke_run
bpf: Fix prog_array_map_poke_run map poke update
netfilter: xt_owner: Fix for unsafe access of sk->sk_socket
netfilter: nf_tables: validate family when identifying table via handle
netfilter: nf_tables: bail out on mismatching dynset and set expressions
netfilter: nf_tables: fix 'exist' matching on bigendian arches
netfilter: nft_set_pipapo: skip inactive elements during set walk
netfilter: bpf: fix bad registration on nf_defrag
leds: trigger: netdev: fix RTNL handling to prevent potential deadlock
octeontx2-af: Update Tx link register range
...
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git://anongit.freedesktop.org/drm/drm-intel into drm-fixes
drm/i915 fixes for v6.7-rc5:
- d21a3962d304 ("drm/i915: Call intel_pre_plane_updates() also for pipes
getting enabled") in the previous fixes pull depends on a change that
wasn't included. Pick it up.
- Relax BXT/GLK DSI transcoder hblank limits
- Fix DP MST .mode_valid_ctx() return values
- Reject DP MST modes that require bigjoiner (as it's not yet supported on DP MST)
- Fix _intel_dsb_commit() variable type to allow negative values
Signed-off-by: Dave Airlie <airlied@redhat.com>
From: Jani Nikula <jani.nikula@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/87msum1hv8.fsf@intel.com
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git://git.kernel.org/pub/scm/linux/kernel/git/tj/cgroup
Pull cgroup fix from Tejun Heo:
"Just one fix.
Commit f5d39b020809 ("freezer,sched: Rewrite core freezer logic")
changed how freezing state is recorded which made cgroup_freezing()
disagree with the actual state of the task while thawing triggering a
warning. Fix it by updating cgroup_freezing()"
* tag 'cgroup-for-6.7-rc4-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/tj/cgroup:
cgroup_freezer: cgroup_freezing: Check if not frozen
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If a pointer to an uninitialized struct acpi_handle_list is passed to
acpi_evaluate_reference() and it decides to bail out early, either
because acpi_evaluate_object() fails, or because it produces invalid
data, the handles pointer from the struct acpi_handle_list will be
passed to kfree() and if it is not NULL, the kernel will crash on an
attempt to free unallocated memory.
Address this by moving the "end" label in acpi_evaluate_reference() to
the end of the function, which is sufficient, because no cleanup is
needed in that case.
Fixes: 2e57d10a6591 ("ACPI: utils: Dynamically determine acpi_handle_list size")
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
Tested-by: Woody Suwalski <terraluna977@gmail.com>
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git://git.kernel.org/pub/scm/linux/kernel/git/tj/wq
Pull workqueue fix from Tejun Heo:
"Just one patch to fix a bug which can crash the kernel if the
housekeeping and wq_unbound_cpu cpumask configuration combination
leaves the latter empty"
* tag 'wq-for-6.7-rc4-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/tj/wq:
workqueue: Make sure that wq_unbound_cpumask is never empty
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git://git.kernel.org/pub/scm/linux/kernel/git/broonie/regmap
Pull regmap fix from Mark Brown:
"An incremental fix for the fix introduced during the merge window for
caching of the selector for windowed register ranges. We were
incorrectly leaking an error code in the case where the last selector
accessed was for some reason not cached"
* tag 'regmap-fix-v6.7-rc4' of git://git.kernel.org/pub/scm/linux/kernel/git/broonie/regmap:
regmap: fix bogus error on regcache_sync success
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git://git.kernel.org/pub/scm/linux/kernel/git/robh/linux
Pull devicetree fixes from Rob Herring:
- Fix dt-extract-compatibles for builds with in tree build directory
- Drop Xinlei Lee <xinlei.lee@mediatek.com> bouncing email
- Fix the of_reconfig_get_state_change() return value documentation
- Add missing #power-domain-cells property to QCom MPM
- Fix warnings in i.MX LCDIF and adi,adv7533
* tag 'devicetree-fixes-for-6.7-1' of git://git.kernel.org/pub/scm/linux/kernel/git/robh/linux:
dt-bindings: display: adi,adv75xx: Document #sound-dai-cells
dt-bindings: lcdif: Properly describe the i.MX23 interrupts
dt-bindings: interrupt-controller: Allow #power-domain-cells
of: dynamic: Fix of_reconfig_get_state_change() return value documentation
dt-bindings: display: mediatek: dsi: remove Xinlei's mail
dt: dt-extract-compatibles: Don't follow symlinks when walking tree
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git://git.kernel.org/pub/scm/linux/kernel/git/pdx86/platform-drivers-x86
Pull x86 platform driver fixes from Ilpo Järvinen:
- Fix i8042 filter resource handling, input, and suspend issues in
asus-wmi
- Skip zero instance WMI blocks to avoid issues with some laptops
- Differentiate dev/production keys in mlxbf-bootctl
- Correct surface serdev related return value to avoid leaking errno
into userspace
- Error checking fixes
* tag 'platform-drivers-x86-v6.7-3' of git://git.kernel.org/pub/scm/linux/kernel/git/pdx86/platform-drivers-x86:
platform/mellanox: Check devm_hwmon_device_register_with_groups() return value
platform/mellanox: Add null pointer checks for devm_kasprintf()
mlxbf-bootctl: correctly identify secure boot with development keys
platform/x86: wmi: Skip blocks with zero instances
platform/surface: aggregator: fix recv_buf() return value
platform/x86: asus-wmi: disable USB0 hub on ROG Ally before suspend
platform/x86: asus-wmi: Filter Volume key presses if also reported via atkbd
platform/x86: asus-wmi: Change q500a_i8042_filter() into a generic i8042-filter
platform/x86: asus-wmi: Move i8042 filter install to shared asus-wmi code
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git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
Pull x86 int80 fixes from Dave Hansen:
"Avoid VMM misuse of 'int 0x80' handling in TDX and SEV guests.
It also has the very nice side effect of getting rid of a bunch of
assembly entry code"
* tag 'x86-int80-20231207' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
x86/tdx: Allow 32-bit emulation by default
x86/entry: Do not allow external 0x80 interrupts
x86/entry: Convert INT 0x80 emulation to IDTENTRY
x86/coco: Disable 32-bit emulation by default on TDX and SEV
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https://git.kernel.org/pub/scm/linux/kernel/git/song/md into block-6.7
Pull MD fix from Song:
"This change from Yu Kuai fixes a bug reported in
https://bugzilla.kernel.org/show_bug.cgi?id=218200"
* tag 'md-fixes-20231207-1' of https://git.kernel.org/pub/scm/linux/kernel/git/song/md:
md: split MD_RECOVERY_NEEDED out of mddev_resume
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Lenovo Yoga Pro 7 14APH8 (PCI SSID 17aa:3882) seems requiring the
similar workaround like Yoga 9 model for the bass speaker.
Cc: <stable@vger.kernel.org>
Link: https://lore.kernel.org/r/CAGGk=CRRQ1L9p771HsXTN_ebZP41Qj+3gw35Gezurn+nokRewg@mail.gmail.com
Link: https://lore.kernel.org/r/20231207182035.30248-1-tiwai@suse.de
Signed-off-by: Takashi Iwai <tiwai@suse.de>
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New mddev_resume() calls are added to synchronize IO with array
reconfiguration, however, this introduces a performance regression while
adding it in md_start_sync():
1) someone sets MD_RECOVERY_NEEDED first;
2) daemon thread grabs reconfig_mutex, then clears MD_RECOVERY_NEEDED and
queues a new sync work;
3) daemon thread releases reconfig_mutex;
4) in md_start_sync
a) check that there are spares that can be added/removed, then suspend
the array;
b) remove_and_add_spares may not be called, or called without really
add/remove spares;
c) resume the array, then set MD_RECOVERY_NEEDED again!
Loop between 2 - 4, then mddev_suspend() will be called quite often, for
consequence, normal IO will be quite slow.
Fix this problem by don't set MD_RECOVERY_NEEDED again in md_start_sync(),
hence the loop will be broken.
Fixes: bc08041b32ab ("md: suspend array in md_start_sync() if array need reconfiguration")
Suggested-by: Song Liu <song@kernel.org>
Reported-by: Janpieter Sollie <janpieter.sollie@edpnet.be>
Closes: https://bugzilla.kernel.org/show_bug.cgi?id=218200
Signed-off-by: Yu Kuai <yukuai3@huawei.com>
Signed-off-by: Song Liu <song@kernel.org>
Link: https://lore.kernel.org/r/20231207020724.2797445-1-yukuai1@huaweicloud.com
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After backporting commit 581512a6dc93 ("vsock/virtio: MSG_ZEROCOPY
flag support") in CentOS Stream 9, CI reported the following error:
In file included from ./include/linux/kernel.h:17,
from ./include/linux/list.h:9,
from ./include/linux/preempt.h:11,
from ./include/linux/spinlock.h:56,
from net/vmw_vsock/virtio_transport_common.c:9:
net/vmw_vsock/virtio_transport_common.c: In function ‘virtio_transport_can_zcopy‘:
./include/linux/minmax.h:20:35: error: comparison of distinct pointer types lacks a cast [-Werror]
20 | (!!(sizeof((typeof(x) *)1 == (typeof(y) *)1)))
| ^~
./include/linux/minmax.h:26:18: note: in expansion of macro ‘__typecheck‘
26 | (__typecheck(x, y) && __no_side_effects(x, y))
| ^~~~~~~~~~~
./include/linux/minmax.h:36:31: note: in expansion of macro ‘__safe_cmp‘
36 | __builtin_choose_expr(__safe_cmp(x, y), \
| ^~~~~~~~~~
./include/linux/minmax.h:45:25: note: in expansion of macro ‘__careful_cmp‘
45 | #define min(x, y) __careful_cmp(x, y, <)
| ^~~~~~~~~~~~~
net/vmw_vsock/virtio_transport_common.c:63:37: note: in expansion of macro ‘min‘
63 | int pages_to_send = min(pages_in_iov, MAX_SKB_FRAGS);
We could solve it by using min_t(), but this operation seems entirely
unnecessary, because we also pass MAX_SKB_FRAGS to iov_iter_npages(),
which performs almost the same check, returning at most MAX_SKB_FRAGS
elements. So, let's eliminate this unnecessary comparison.
Fixes: 581512a6dc93 ("vsock/virtio: MSG_ZEROCOPY flag support")
Cc: avkrasnov@salutedevices.com
Signed-off-by: Stefano Garzarella <sgarzare@redhat.com>
Acked-by: Michael S. Tsirkin <mst@redhat.com>
Reviewed-by: Arseniy Krasnov <avkrasnov@salutedevices.com>
Link: https://lore.kernel.org/r/20231206164143.281107-1-sgarzare@redhat.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
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The byte order conversions of ISM GID and DMB token are missing in
process of CLC accept and confirm. So fix it.
Fixes: 3d9725a6a133 ("net/smc: common routine for CLC accept and confirm")
Signed-off-by: Wen Gu <guwen@linux.alibaba.com>
Reviewed-by: Tony Lu <tonylu@linux.alibaba.com>
Reviewed-by: Alexandra Winter <wintera@linux.ibm.com>
Reviewed-by: Wenjia Zhang <wenjia@linux.ibm.com>
Link: https://lore.kernel.org/r/1701882157-87956-1-git-send-email-guwen@linux.alibaba.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
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Provide a list of valid protocols for which the driver will provide
it's deferred xmit handler.
When using DSA_TAG_PROTO_KSZ8795 protocol, it does not provide a
"connect" method, therefor ksz_connect() is not allocating ksz_tagger_data.
This avoids the following null pointer dereference:
ksz_connect_tag_protocol from dsa_register_switch+0x9ac/0xee0
dsa_register_switch from ksz_switch_register+0x65c/0x828
ksz_switch_register from ksz_spi_probe+0x11c/0x168
ksz_spi_probe from spi_probe+0x84/0xa8
spi_probe from really_probe+0xc8/0x2d8
Fixes: ab32f56a4100 ("net: dsa: microchip: ptp: add packet transmission timestamping")
Signed-off-by: Sean Nyekjaer <sean@geanix.com>
Reviewed-by: Florian Fainelli <florian.fainelli@broadcom.com>
Reviewed-by: Vladimir Oltean <vladimir.oltean@nxp.com>
Link: https://lore.kernel.org/r/20231206071655.1626479-1-sean@geanix.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
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Ido Schimmel says:
====================
Generic netlink multicast fixes
Restrict two generic netlink multicast groups - in the "psample" and
"NET_DM" families - to be root-only with the appropriate capabilities.
See individual patches for more details.
====================
Link: https://lore.kernel.org/r/20231206213102.1824398-1-idosch@nvidia.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
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The "NET_DM" generic netlink family notifies drop locations over the
"events" multicast group. This is problematic since by default generic
netlink allows non-root users to listen to these notifications.
Fix by adding a new field to the generic netlink multicast group
structure that when set prevents non-root users or root without the
'CAP_SYS_ADMIN' capability (in the user namespace owning the network
namespace) from joining the group. Set this field for the "events"
group. Use 'CAP_SYS_ADMIN' rather than 'CAP_NET_ADMIN' because of the
nature of the information that is shared over this group.
Note that the capability check in this case will always be performed
against the initial user namespace since the family is not netns aware
and only operates in the initial network namespace.
A new field is added to the structure rather than using the "flags"
field because the existing field uses uAPI flags and it is inappropriate
to add a new uAPI flag for an internal kernel check. In net-next we can
rework the "flags" field to use internal flags and fold the new field
into it. But for now, in order to reduce the amount of changes, add a
new field.
Since the information can only be consumed by root, mark the control
plane operations that start and stop the tracing as root-only using the
'GENL_ADMIN_PERM' flag.
Tested using [1].
Before:
# capsh -- -c ./dm_repo
# capsh --drop=cap_sys_admin -- -c ./dm_repo
After:
# capsh -- -c ./dm_repo
# capsh --drop=cap_sys_admin -- -c ./dm_repo
Failed to join "events" multicast group
[1]
$ cat dm.c
#include <stdio.h>
#include <netlink/genl/ctrl.h>
#include <netlink/genl/genl.h>
#include <netlink/socket.h>
int main(int argc, char **argv)
{
struct nl_sock *sk;
int grp, err;
sk = nl_socket_alloc();
if (!sk) {
fprintf(stderr, "Failed to allocate socket\n");
return -1;
}
err = genl_connect(sk);
if (err) {
fprintf(stderr, "Failed to connect socket\n");
return err;
}
grp = genl_ctrl_resolve_grp(sk, "NET_DM", "events");
if (grp < 0) {
fprintf(stderr,
"Failed to resolve \"events\" multicast group\n");
return grp;
}
err = nl_socket_add_memberships(sk, grp, NFNLGRP_NONE);
if (err) {
fprintf(stderr, "Failed to join \"events\" multicast group\n");
return err;
}
return 0;
}
$ gcc -I/usr/include/libnl3 -lnl-3 -lnl-genl-3 -o dm_repo dm.c
Fixes: 9a8afc8d3962 ("Network Drop Monitor: Adding drop monitor implementation & Netlink protocol")
Reported-by: "The UK's National Cyber Security Centre (NCSC)" <security@ncsc.gov.uk>
Signed-off-by: Ido Schimmel <idosch@nvidia.com>
Reviewed-by: Jacob Keller <jacob.e.keller@intel.com>
Reviewed-by: Jiri Pirko <jiri@nvidia.com>
Link: https://lore.kernel.org/r/20231206213102.1824398-3-idosch@nvidia.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
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The "psample" generic netlink family notifies sampled packets over the
"packets" multicast group. This is problematic since by default generic
netlink allows non-root users to listen to these notifications.
Fix by marking the group with the 'GENL_UNS_ADMIN_PERM' flag. This will
prevent non-root users or root without the 'CAP_NET_ADMIN' capability
(in the user namespace owning the network namespace) from joining the
group.
Tested using [1].
Before:
# capsh -- -c ./psample_repo
# capsh --drop=cap_net_admin -- -c ./psample_repo
After:
# capsh -- -c ./psample_repo
# capsh --drop=cap_net_admin -- -c ./psample_repo
Failed to join "packets" multicast group
[1]
$ cat psample.c
#include <stdio.h>
#include <netlink/genl/ctrl.h>
#include <netlink/genl/genl.h>
#include <netlink/socket.h>
int join_grp(struct nl_sock *sk, const char *grp_name)
{
int grp, err;
grp = genl_ctrl_resolve_grp(sk, "psample", grp_name);
if (grp < 0) {
fprintf(stderr, "Failed to resolve \"%s\" multicast group\n",
grp_name);
return grp;
}
err = nl_socket_add_memberships(sk, grp, NFNLGRP_NONE);
if (err) {
fprintf(stderr, "Failed to join \"%s\" multicast group\n",
grp_name);
return err;
}
return 0;
}
int main(int argc, char **argv)
{
struct nl_sock *sk;
int err;
sk = nl_socket_alloc();
if (!sk) {
fprintf(stderr, "Failed to allocate socket\n");
return -1;
}
err = genl_connect(sk);
if (err) {
fprintf(stderr, "Failed to connect socket\n");
return err;
}
err = join_grp(sk, "config");
if (err)
return err;
err = join_grp(sk, "packets");
if (err)
return err;
return 0;
}
$ gcc -I/usr/include/libnl3 -lnl-3 -lnl-genl-3 -o psample_repo psample.c
Fixes: 6ae0a6286171 ("net: Introduce psample, a new genetlink channel for packet sampling")
Reported-by: "The UK's National Cyber Security Centre (NCSC)" <security@ncsc.gov.uk>
Signed-off-by: Ido Schimmel <idosch@nvidia.com>
Reviewed-by: Jacob Keller <jacob.e.keller@intel.com>
Reviewed-by: Jiri Pirko <jiri@nvidia.com>
Link: https://lore.kernel.org/r/20231206213102.1824398-2-idosch@nvidia.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
|
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John Fastabend says:
====================
Couple fixes for TLS and BPF interactions.
====================
Link: https://lore.kernel.org/r/20231206232706.374377-1-john.fastabend@gmail.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
|
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Curr pointer should be updated when the sg structure is shifted.
Fixes: 7246d8ed4dcce ("bpf: helper to pop data from messages")
Signed-off-by: John Fastabend <john.fastabend@gmail.com>
Link: https://lore.kernel.org/r/20231206232706.374377-3-john.fastabend@gmail.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
|
|
The curr pointer must also be updated on the splice similar to how
we do this for other copy types.
Fixes: d829e9c4112b ("tls: convert to generic sk_msg interface")
Signed-off-by: John Fastabend <john.fastabend@gmail.com>
Reported-by: Jann Horn <jannh@google.com>
Link: https://lore.kernel.org/r/20231206232706.374377-2-john.fastabend@gmail.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
|
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32-bit emulation was disabled on TDX to prevent a possible attack by
a VMM injecting an interrupt on vector 0x80.
Now that int80_emulation() has a check for external interrupts the
limitation can be lifted.
To distinguish software interrupts from external ones, int80_emulation()
checks the APIC ISR bit relevant to the 0x80 vector. For
software interrupts, this bit will be 0.
On TDX, the VAPIC state (including ISR) is protected and cannot be
manipulated by the VMM. The ISR bit is set by the microcode flow during
the handling of posted interrupts.
[ dhansen: more changelog tweaks ]
Signed-off-by: Kirill A. Shutemov <kirill.shutemov@linux.intel.com>
Signed-off-by: Dave Hansen <dave.hansen@linux.intel.com>
Reviewed-by: Thomas Gleixner <tglx@linutronix.de>
Reviewed-by: Borislav Petkov (AMD) <bp@alien8.de>
Cc: <stable@vger.kernel.org> # v6.0+
|
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The INT 0x80 instruction is used for 32-bit x86 Linux syscalls. The
kernel expects to receive a software interrupt as a result of the INT
0x80 instruction. However, an external interrupt on the same vector
also triggers the same codepath.
An external interrupt on vector 0x80 will currently be interpreted as a
32-bit system call, and assuming that it was a user context.
Panic on external interrupts on the vector.
To distinguish software interrupts from external ones, the kernel checks
the APIC ISR bit relevant to the 0x80 vector. For software interrupts,
this bit will be 0.
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Signed-off-by: Kirill A. Shutemov <kirill.shutemov@linux.intel.com>
Signed-off-by: Dave Hansen <dave.hansen@linux.intel.com>
Reviewed-by: Borislav Petkov (AMD) <bp@alien8.de>
Cc: <stable@vger.kernel.org> # v6.0+
|
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There is no real reason to have a separate ASM entry point implementation
for the legacy INT 0x80 syscall emulation on 64-bit.
IDTENTRY provides all the functionality needed with the only difference
that it does not:
- save the syscall number (AX) into pt_regs::orig_ax
- set pt_regs::ax to -ENOSYS
Both can be done safely in the C code of an IDTENTRY before invoking any of
the syscall related functions which depend on this convention.
Aside of ASM code reduction this prepares for detecting and handling a
local APIC injected vector 0x80.
[ kirill.shutemov: More verbose comments ]
Suggested-by: Linus Torvalds <torvalds@linuxfoundation.org>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Signed-off-by: Kirill A. Shutemov <kirill.shutemov@linux.intel.com>
Signed-off-by: Dave Hansen <dave.hansen@linux.intel.com>
Reviewed-by: Borislav Petkov (AMD) <bp@alien8.de>
Cc: <stable@vger.kernel.org> # v6.0+
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The INT 0x80 instruction is used for 32-bit x86 Linux syscalls. The
kernel expects to receive a software interrupt as a result of the INT
0x80 instruction. However, an external interrupt on the same vector
triggers the same handler.
The kernel interprets an external interrupt on vector 0x80 as a 32-bit
system call that came from userspace.
A VMM can inject external interrupts on any arbitrary vector at any
time. This remains true even for TDX and SEV guests where the VMM is
untrusted.
Put together, this allows an untrusted VMM to trigger int80 syscall
handling at any given point. The content of the guest register file at
that moment defines what syscall is triggered and its arguments. It
opens the guest OS to manipulation from the VMM side.
Disable 32-bit emulation by default for TDX and SEV. User can override
it with the ia32_emulation=y command line option.
[ dhansen: reword the changelog ]
Reported-by: Supraja Sridhara <supraja.sridhara@inf.ethz.ch>
Reported-by: Benedict Schlüter <benedict.schlueter@inf.ethz.ch>
Reported-by: Mark Kuhne <mark.kuhne@inf.ethz.ch>
Reported-by: Andrin Bertschi <andrin.bertschi@inf.ethz.ch>
Reported-by: Shweta Shinde <shweta.shinde@inf.ethz.ch>
Signed-off-by: Kirill A. Shutemov <kirill.shutemov@linux.intel.com>
Signed-off-by: Dave Hansen <dave.hansen@linux.intel.com>
Reviewed-by: Thomas Gleixner <tglx@linutronix.de>
Reviewed-by: Borislav Petkov (AMD) <bp@alien8.de>
Cc: <stable@vger.kernel.org> # v6.0+: 1da5c9b x86: Introduce ia32_enabled()
Cc: <stable@vger.kernel.org> # v6.0+
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