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Merge tag 'gfs2-v5.8-rc4.fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/gfs2/linux-gfs2
Pull gfs2 fixes from Andreas Gruenbacher:
"Fix gfs2 readahead deadlocks by adding a IOCB_NOIO flag that allows
gfs2 to use the generic fiel read iterator functions without having to
worry about being called back while holding locks".
* tag 'gfs2-v5.8-rc4.fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/gfs2/linux-gfs2:
gfs2: Rework read and page fault locking
fs: Add IOCB_NOIO flag for generic_file_read_iter
- Fix workaround for CPU erratum #1418040 to disable the compat vDSO
- Fix OOPs when single-stepping with KGDB
- Fix memory attributes for hypervisor device mappings at EL2
- Fix memory leak in PSCI and remove useless variable assignment
- Fix up some comments and asm labels in our entry code
- Fix broken register table formatting in our generated html docs
- Fix missing NULL sentinel in CPU errata workaround list
- Fix patching of branches in alternative instruction sections
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Merge tag 'arm64-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux
Pull arm64 fixes from Will Deacon:
"An unfortunately large collection of arm64 fixes for -rc5.
Some of this is absolutely trivial, but the alternatives, vDSO and CPU
errata workaround fixes are significant. At least people are finding
and fixing these things, I suppose.
- Fix workaround for CPU erratum #1418040 to disable the compat vDSO
- Fix Oops when single-stepping with KGDB
- Fix memory attributes for hypervisor device mappings at EL2
- Fix memory leak in PSCI and remove useless variable assignment
- Fix up some comments and asm labels in our entry code
- Fix broken register table formatting in our generated html docs
- Fix missing NULL sentinel in CPU errata workaround list
- Fix patching of branches in alternative instruction sections"
* tag 'arm64-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux:
arm64/alternatives: don't patch up internal branches
arm64: Add missing sentinel to erratum_1463225
arm64: Documentation: Fix broken table in generated HTML
arm64: kgdb: Fix single-step exception handling oops
arm64: entry: Tidy up block comments and label numbers
arm64: Rework ARM_ERRATUM_1414080 handling
arm64: arch_timer: Disable the compat vdso for cores affected by ARM64_WORKAROUND_1418040
arm64: arch_timer: Allow an workaround descriptor to disable compat vdso
arm64: Introduce a way to disable the 32bit vdso
arm64: entry: Fix the typo in the comment of el1_dbg()
drivers/firmware/psci: Assign @err directly in hotplug_tests()
drivers/firmware/psci: Fix memory leakage in alloc_init_cpu_groups()
KVM: arm64: Fix definition of PAGE_HYP_DEVICE
for Gerald Schaefer and Heiko Carstens.
- Fix huge pte soft dirty copying.
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Merge tag 's390-5.8-5' of git://git.kernel.org/pub/scm/linux/kernel/git/s390/linux
Pull s390 fixes from Heiko Carstens:
"This is mainly due to the fact that Gerald Schaefer's and also my old
email addresses currently do not work any longer. Therefore we decided
to switch to new email addresses and reflect that in the MAINTAINERS
file.
- Update email addresses in MAINTAINERS file and add .mailmap entries
for Gerald Schaefer and Heiko Carstens.
- Fix huge pte soft dirty copying"
* tag 's390-5.8-5' of git://git.kernel.org/pub/scm/linux/kernel/git/s390/linux:
MAINTAINERS: update email address for Gerald Schaefer
MAINTAINERS: update email address for Heiko Carstens
s390/mm: fix huge pte soft dirty copying
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Merge tag 'for-linus' of git://git.kernel.org/pub/scm/virt/kvm/kvm
Pull vkm fixes from Paolo Bonzini:
"Two simple but important bugfixes"
* tag 'for-linus' of git://git.kernel.org/pub/scm/virt/kvm/kvm:
KVM: MIPS: Fix build errors for 32bit kernel
KVM: nVMX: fixes for preemption timer migration
- sdhci-msm: Override DLL_CONFIG only with valid values
- owl-mmc: Get rid of of_match_ptr() macro to fix warning
- meson-gx: Limit segments to 1 to fix G12A/G12B SoCs
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Merge tag 'mmc-v5.8-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/ulfh/mmc
Pull MMC fixes from Ulf Hansson:
- Override DLL_CONFIG only with valid values in sdhci-msm
- Get rid of of_match_ptr() macro to fix warning in owl-mmc
- Limit segments to 1 to fix meson-gx G12A/G12B SoCs
* tag 'mmc-v5.8-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/ulfh/mmc:
mmc: sdhci-msm: Override DLL_CONFIG only if the valid value is supplied
mmc: owl-mmc: Get rid of of_match_ptr() macro
mmc: meson-gx: limit segments to 1 when dram-access-quirk is needed
We currently account the memory after the exit work has been run, but
that leaves a gap where a process has closed its ring and until the
memory has been accounted as freed. If the memlocked ulimit is
borderline, then that can introduce spurious setup errors returning
-ENOMEM because the free work hasn't been run yet.
Account this as freed when we close the ring, as not to expose a tiny
gap where setting up a new ring can fail.
Fixes: 85faa7b834 ("io_uring: punt final io_ring_ctx wait-and-free to workqueue")
Cc: stable@vger.kernel.org # v5.7
Signed-off-by: Jens Axboe <axboe@kernel.dk>
Coverity's static analysis helpfully reported a memory leak introduced by
0f0e55d824 ("libbpf: Improve BTF sanitization handling"). While fixing it,
I realized that btf__new() already creates a memory copy, so there is no need
to do this. So this patch also fixes misleading btf__new() signature to make
data into a `const void *` input parameter. And it avoids unnecessary memory
allocation and copy in BTF sanitization code altogether.
Fixes: 0f0e55d824 ("libbpf: Improve BTF sanitization handling")
Signed-off-by: Andrii Nakryiko <andriin@fb.com>
Signed-off-by: Daniel Borkmann <daniel@iogearbox.net>
Link: https://lore.kernel.org/bpf/20200710011023.1655008-1-andriin@fb.com
Commit dc6d95b153 ("KVM: MIPS: Add more MMIO load/store
instructions emulation") introduced some 64bit load/store instructions
emulation which are unavailable on 32bit platform, and it causes build
errors:
arch/mips/kvm/emulate.c: In function 'kvm_mips_emulate_store':
arch/mips/kvm/emulate.c:1734:6: error: right shift count >= width of type [-Werror]
((vcpu->arch.gprs[rt] >> 56) & 0xff);
^
arch/mips/kvm/emulate.c:1738:6: error: right shift count >= width of type [-Werror]
((vcpu->arch.gprs[rt] >> 48) & 0xffff);
^
arch/mips/kvm/emulate.c:1742:6: error: right shift count >= width of type [-Werror]
((vcpu->arch.gprs[rt] >> 40) & 0xffffff);
^
arch/mips/kvm/emulate.c:1746:6: error: right shift count >= width of type [-Werror]
((vcpu->arch.gprs[rt] >> 32) & 0xffffffff);
^
arch/mips/kvm/emulate.c:1796:6: error: left shift count >= width of type [-Werror]
(vcpu->arch.gprs[rt] << 32);
^
arch/mips/kvm/emulate.c:1800:6: error: left shift count >= width of type [-Werror]
(vcpu->arch.gprs[rt] << 40);
^
arch/mips/kvm/emulate.c:1804:6: error: left shift count >= width of type [-Werror]
(vcpu->arch.gprs[rt] << 48);
^
arch/mips/kvm/emulate.c:1808:6: error: left shift count >= width of type [-Werror]
(vcpu->arch.gprs[rt] << 56);
^
cc1: all warnings being treated as errors
make[3]: *** [arch/mips/kvm/emulate.o] Error 1
So, use #if defined(CONFIG_64BIT) && defined(CONFIG_KVM_MIPS_VZ) to
guard the 64bit load/store instructions emulation.
Reported-by: kernel test robot <lkp@intel.com>
Fixes: dc6d95b153 ("KVM: MIPS: Add more MMIO load/store instructions emulation")
Signed-off-by: Huacai Chen <chenhc@lemote.com>
Message-Id: <1594365797-536-1-git-send-email-chenhc@lemote.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Commit 850448f35a ("KVM: nVMX: Fix VMX preemption timer migration",
2020-06-01) accidentally broke nVMX live migration from older version
by changing the userspace ABI. Restore it and, while at it, ensure
that vmx->nested.has_preemption_timer_deadline is always initialized
according to the KVM_STATE_VMX_PREEMPTION_TIMER_DEADLINE flag.
Cc: Makarand Sonare <makarandsonare@google.com>
Fixes: 850448f35a ("KVM: nVMX: Fix VMX preemption timer migration")
Reviewed-by: Jim Mattson <jmattson@google.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Before this commit, on ft flush, ft entries were not removed
from the ct_tuple hashtables. Fix it.
Fixes: ac991b48d4 ("net/mlx5e: CT: Offload established flows")
Signed-off-by: Roi Dayan <roid@mellanox.com>
Signed-off-by: Eli Britstein <elibr@mellanox.com>
Signed-off-by: Saeed Mahameed <saeedm@mellanox.com>
"flow" parameter is not used in __mlx5_tc_ct_flow_offload_clear(),
remove it.
Signed-off-by: Saeed Mahameed <saeedm@mellanox.com>
Reviewed-by: Roi Dayan <roid@mellanox.com>
Instead of having to deal with converting between int and ERR_PTR for
return values in mlx5_tc_ct_flow_offload(), make the internal helper
functions return a ptr to mlx5_flow_handle instead of passing it as
output param, this will also avoid gcc confusion and false alarms,
thus we remove the redundant ERR_PTR rule initialization.
Signed-off-by: Saeed Mahameed <saeedm@mellanox.com>
Suggested-by: Jason Gunthorpe <jgg@mellanox.com>
Reviewed-by: Roi Dayan <roid@mellanox.com>
Reg_c1 is 32 bits wide. Originally, 24 bit were allocated for the tuple_id,
6 bits for tunnel mapping and 2 bits for tunnel options mappings.
Restoring the ct state from zone lookup instead of tuple id requires
reg_c1 to store 8 bits mapping the ct zone, leaving 24 bits for tunnel
mappings.
Expand tunnel and tunnel options register mappings to 12 bit each.
Signed-off-by: Paul Blakey <paulb@mellanox.com>
Reviewed-by: Oz Shlomo <ozsh@mellanox.com>
Signed-off-by: Saeed Mahameed <saeedm@mellanox.com>
Use a single byte mapping for zone restore register (zone matching
remains 16 bit).
This makes room for using the freed 8 bits on register C1 for
mapping more tunnels and tunnel options.
Signed-off-by: Paul Blakey <paulb@mellanox.com>
Reviewed-by: Oz Shlomo <ozsh@mellanox.com>
Signed-off-by: Saeed Mahameed <saeedm@mellanox.com>
After removing the tupleid register which changed per tuple,
tuple modify headers set the ct_state, zone, mark, and label registers.
For non-natted tuples going through the same tc rules path, their values
will be the same, and all their modify headers will be the same.
Re-use tuple modify header when possible, by adding each new modify
header to an hahstable, and looking up identical ones before creating
a new one.
Signed-off-by: Paul Blakey <paulb@mellanox.com>
Reviewed-by: Oz Shlomo <ozsh@mellanox.com>
Signed-off-by: Saeed Mahameed <saeedm@mellanox.com>
Refactor sharing of mod headers to new file and while there,
remove spin lock and flows list, as this is only used for warn on.
Use the generic API in the next patch to re-use tuple modify headers
for identical modify actions,
Signed-off-by: Paul Blakey <paulb@mellanox.com>
Reviewed-by: Roi Dayan <roid@mellanox.com>
Reviewed-by: Oz Shlomo <ozsh@mellanox.com>
Signed-off-by: Saeed Mahameed <saeedm@mellanox.com>
Remove tupleid, and replace it with zone_restore, which is the zone an
established tuple sets after match. On miss, Use this zone + tuple
taken from the skb, to lookup the ct entry and restore it.
This improves flow insertion rate by avoiding the allocation of a header
rewrite context.
Signed-off-by: Paul Blakey <paulb@mellanox.com>
Reviewed-by: Oz Shlomo <ozsh@mellanox.com>
Signed-off-by: Saeed Mahameed <saeedm@mellanox.com>
Next patches will remove the tupleid registers that is used
to restore the ct state on miss, and instead use the tuple on
the missed packet to lookup which state to restore.
Disable tuple rewrites after connection tracking.
For tuple rewrites, inject a ct_state=-trk match so it won't
change the tuple for established flows (+trk) that passed connection
tracking, and instead miss to software.
Signed-off-by: Paul Blakey <paulb@mellanox.com>
Reviewed-by: Oz Shlomo <ozsh@mellanox.com>
Signed-off-by: Saeed Mahameed <saeedm@mellanox.com>
The next patch will pass the mlx5e_priv struct to the
modify_header_match_supported method. Use this opportunity to refactor
the existing pr_info call to a netdev_info call.
Signed-off-by: Oz Shlomo <ozsh@mellanox.com>
Signed-off-by: Saeed Mahameed <saeedm@mellanox.com>
With ct clear we don't jump to the ct tables, so header rewrite
of 5-tuple can be done in place (and not moved to after the CT action).
Check for ct clear action, and if so, allow 5-tuple header
rewrite.
Signed-off-by: Paul Blakey <paulb@mellanox.com>
Reviewed-by: Oz Shlomo <ozsh@mellanox.com>
Signed-off-by: Saeed Mahameed <saeedm@mellanox.com>
Save original tuple and natted tuple in two new hashtables.
This is a pre-step for restoring ct state after hw miss by performing a
5-tuple lookup on the hash tables.
Signed-off-by: Paul Blakey <paulb@mellanox.com>
Reviewed-by: Oz Shlomo <ozsh@mellanox.com>
Signed-off-by: Saeed Mahameed <saeedm@mellanox.com>
When eswitch is unsupported, currently -EPERM error code is returned
instead of -EOPNOTSUPP.
Due to this VF device's devlink virtual port is not enumerated because
port_function_get() callback returned -EPERM instead of -EOPNOTSUPP.
Hence, return the error code -EOPNOTSUPP when eswitch is unsupported.
Fixes: bd93975353 ("net/mlx5: E-switch, Introduce and use eswitch support check helper")
Signed-off-by: Parav Pandit <parav@mellanox.com>
Reviewed-by: Roi Dayan <roid@mellanox.com>
Signed-off-by: Saeed Mahameed <saeedm@mellanox.com>
On ILP32, 64-bit result was shifted by value calculated for 32-bit long type
and returned value was much outside hashmap capacity.
As advised by Andrii Nakryiko, this patch uses different hashing variant for
architectures with size_t shorter than long long.
Fixes: e3b9242240 ("libbpf: add resizable non-thread safe internal hashmap")
Signed-off-by: Jakub Bogusz <qboosh@pld-linux.org>
Signed-off-by: Andrii Nakryiko <andriin@fb.com>
Signed-off-by: Alexei Starovoitov <ast@kernel.org>
Link: https://lore.kernel.org/bpf/20200709225723.1069937-1-andriin@fb.com
CT entries are deleted via a workqueue from netfilter. If removing the
module before that, the rules are cleaned by the driver itself, but the
memory entries for them are not freed. Fix that.
Fixes: ac991b48d4 ("net/mlx5e: CT: Offload established flows")
Signed-off-by: Eli Britstein <elibr@mellanox.com>
Reviewed-by: Roi Dayan <roid@mellanox.com>
Signed-off-by: Saeed Mahameed <saeedm@mellanox.com>
Device unit for port buffers size, xoff_threshold and xon_threshold is
cells. Fix a bug in driver where cell unit size was hard-coded to
128 bytes. This hard-coded value is buggy, as it is wrong for some hardware
versions.
Driver to read cell size from SBCAM register and translate bytes to cell
units accordingly.
In order to fix the bug, this patch exposes SBCAM (Shared buffer
capabilities mask) layout and defines.
If SBCAM.cap_cell_size is valid, use it for all bytes to cells
calculations. If not valid, fallback to 128.
Cell size do not change on the fly per device. Instead of issuing SBCAM
access reg command every time such translation is needed, cache it in
mlx5e_dcbx as part of mlx5e_dcbnl_initialize(). Pass dcbx.port_buff_cell_sz
as a param to every function that needs bytes to cells translation.
While fixing the bug, move MLX5E_BUFFER_CELL_SHIFT macro to
en_dcbnl.c, as it is only used by that file.
Fixes: 0696d60853 ("net/mlx5e: Receive buffer configuration")
Signed-off-by: Eran Ben Elisha <eranbe@mellanox.com>
Reviewed-by: Huy Nguyen <huyn@mellanox.com>
Signed-off-by: Saeed Mahameed <saeedm@mellanox.com>
Some released FW versions mistakenly don't set the capability that 50G
per lane link-modes are supported for VFs (ptys_extended_ethernet
capability bit). When the capability is unset, read
PTYS.ext_eth_proto_capability (always reliable).
If PTYS.ext_eth_proto_capability is valid (has a non-zero value)
conclude that the HCA supports 50G per lane. Otherwise, conclude that
the HCA doesn't support 50G per lane.
Fixes: a08b4ed137 ("net/mlx5: Add support to ext_* fields introduced in Port Type and Speed register")
Signed-off-by: Aya Levin <ayal@mellanox.com>
Reviewed-by: Eran Ben Elisha <eranbe@mellanox.com>
Signed-off-by: Saeed Mahameed <saeedm@mellanox.com>
When detaching netdev, remove vxlan port configuration using
udp_tunnel_drop_rx_info. During function reload, configuration will be
restored using udp_tunnel_get_rx_info. This ensures sync between
firmware and driver. Use udp_tunnel_get_rx_info even if its physical
interface is down.
Fixes: 4383cfcc65 ("net/mlx5: Add devlink reload")
Signed-off-by: Aya Levin <ayal@mellanox.com>
Reviewed-by: Eran Ben Elisha <eranbe@mellanox.com>
Signed-off-by: Saeed Mahameed <saeedm@mellanox.com>
In mlx5e_configure_flower() flow pointer is protected by rcu read lock.
However, after cited commit the pointer is being used outside of rcu read
block. Extend the block to protect all pointer accesses.
Fixes: 553f932838 ("net/mlx5e: Support tc block sharing for representors")
Signed-off-by: Vlad Buslov <vladbu@mellanox.com>
Reviewed-by: Roi Dayan <roid@mellanox.com>
Signed-off-by: Saeed Mahameed <saeedm@mellanox.com>
Fix eeprom SFP query support by setting i2c_addr, offset and page number
correctly. Unlike QSFP modules, SFP eeprom params are as follow:
- i2c_addr is 0x50 for offset 0 - 255 and 0x51 for offset 256 - 511.
- Page number is always zero.
- Page offset is always relative to zero.
As part of eeprom query, query the module ID (SFP / QSFP*) via helper
function to set the params accordingly.
In addition, change mlx5_qsfp_eeprom_page() input type to be u16 to avoid
unnecessary casting.
Fixes: a708fb7b1f ("net/mlx5e: ethtool, Add support for EEPROM high pages query")
Signed-off-by: Eran Ben Elisha <eranbe@mellanox.com>
Signed-off-by: Huy Nguyen <huyn@mellanox.com>
Signed-off-by: Saeed Mahameed <saeedm@mellanox.com>
amdgpu:
- Fix a suspend/resume issue with PSP
- Backlight fix for Renoir
- Fix for gpu recovery debugging
radeon:
- Fix a double free in error path
i915:
- fbc fencing fix
- debugfs panic fix
- gem vma constuction fix
- gem pin under vm->nutex fix
nouveau:
- SVM fixes
- display fixes
meson:
- OSD burst length fixes
hibmc:
- runtime warning fix
mediatek:
- cmdq, mmsys fixes
- visibility check fixes
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Merge tag 'drm-fixes-2020-07-10' of git://anongit.freedesktop.org/drm/drm
Pull drm fixes from Dave Airlie:
"I've been off most of the week, but some fixes have piled up. Seems a
bit busier than last week, but they are pretty spread out across a
bunch of drivers, none of them seem that big or worried me too much.
amdgpu:
- Fix a suspend/resume issue with PSP
- Backlight fix for Renoir
- Fix for gpu recovery debugging
radeon:
- Fix a double free in error path
i915:
- fbc fencing fix
- debugfs panic fix
- gem vma constuction fix
- gem pin under vm->nutex fix
nouveau:
- SVM fixes
- display fixes
meson:
- OSD burst length fixes
hibmc:
- runtime warning fix
mediatek:
- cmdq, mmsys fixes
- visibility check fixes"
* tag 'drm-fixes-2020-07-10' of git://anongit.freedesktop.org/drm/drm: (24 commits)
drm/amdgpu: don't do soft recovery if gpu_recovery=0
drm/radeon: fix double free
drm/amd/display: add dmcub check on RENOIR
drm/amdgpu: add TMR destory function for psp
drm/amdgpu: asd function needs to be unloaded in suspend phase
drm/hisilicon/hibmc: Move drm_fbdev_generic_setup() down to avoid the splat
drm/nouveau/nouveau: fix page fault on device private memory
drm/nouveau/svm: fix migrate page regression
drm/nouveau/i2c/g94-: increase NV_PMGR_DP_AUXCTL_TRANSACTREQ timeout
drm/nouveau/kms/nv50-: bail from nv50_audio_disable() early if audio not enabled
drm/i915/gt: Pin the rings before marking active
drm/i915: Also drop vm.ref along error paths for vma construction
drm/i915: Drop vm.ref for duplicate vma on construction
drm/i915/fbc: Fix fence_y_offset handling
drm/i915: Skip stale object handle for debugfs per-file-stats
drm/mediatek: mtk_hdmi: Remove debug messages for function calls
drm/mediatek: mtk_mt8173_hdmi_phy: Remove unnused const variables
drm/mediatek: Delete not used of_device_get_match_data
drm/mediatek: Remove unnecessary conversion to bool
drm/meson: viu: fix setting the OSD burst length in VIU_OSD1_FIFO_CTRL_STAT
...
While raising the gcc version requirement to 4.9, the compile-time check
in the unroll macro was accidentally changed from being used on gcc and
clang to being used on clang only.
Restore the gcc check, changing it from "gcc >= 4.7" to "all gcc".
[ We should probably remove this all entirely: if we remove the check
for CLANG, then the check for GCC can go away. Older versions of clang
are not really appropriate or supported for kernel builds - Linus ]
Fixes: 6ec4476ac8 ("Raise gcc version requirement to 4.9")
Signed-off-by: Cesar Eduardo Barros <cesarb@cesarb.eti.br>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
-Wtype-limits is included in -Wextra which is added at W=1. It warns
(among other things) that 'comparison of an unsigned variable `< 0` is
always false. This causes noisy warnings, especially when used in
macros, hence it is more suitable for W=2.
Link: https://lore.kernel.org/lkml/CAHk-=wiKCXEWKJ9dWUimGbrVRo_N2RosESUw8E7m9AEtyZcu=w@mail.gmail.com/
Signed-off-by: Rikard Falkeborn <rikard.falkeborn@gmail.com>
Suggested-by: Arnd Bergmann <arnd@arndb.de>
Acked-by: Andy Shevchenko <andy.shevchenko@gmail.com>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
In order for no_refcnt and is_data to be the lowest order two
bits in the 'val' we have to pad out the bitfield of the u8.
Fixes: ad0f75e5f5 ("cgroup: fix cgroup_sk_alloc() for sk_clone_lock()")
Reported-by: Guenter Roeck <linux@roeck-us.net>
Signed-off-by: David S. Miller <davem@davemloft.net>
Fix sockmap tests which rely on old bpf_prog_dispatch behaviour.
In the first case, the tests check that detaching without giving
a program succeeds. Since these are not the desired semantics,
invert the condition. In the second case, the clean up code doesn't
supply the necessary program fds.
Fixes: bb0de3131f ("bpf: sockmap: Require attach_bpf_fd when detaching a program")
Reported-by: Martin KaFai Lau <kafai@fb.com>
Signed-off-by: Lorenz Bauer <lmb@cloudflare.com>
Signed-off-by: Daniel Borkmann <daniel@iogearbox.net>
Reviewed-by: Jakub Sitnicki <jakub@cloudflare.com>
Link: https://lore.kernel.org/bpf/20200709115151.75829-1-lmb@cloudflare.com
from Ville and 4 patches from Chris on GEM: 1 fixing a debugfs
panic and others fixing vma construction and pin under vm->mutex.
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Merge tag 'drm-intel-fixes-2020-07-08' of git://anongit.freedesktop.org/drm/drm-intel into drm-fixes
One display's fbc patch fixing fence_y_offset calculation
from Ville and 4 patches from Chris on GEM: 1 fixing a debugfs
panic and others fixing vma construction and pin under vm->mutex.
Signed-off-by: Dave Airlie <airlied@redhat.com>
From: Rodrigo Vivi <rodrigo.vivi@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20200708190654.GA3924867@intel.com
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Merge tag 'mediatek-drm-fixes-5.8' of https://git.kernel.org/pub/scm/linux/kernel/git/chunkuang.hu/linux into drm-fixes
Mediatek DRM Fixes for Linux 5.8
This include fixup for cmdq, mmsys, visibility checking and some refinement.
Signed-off-by: Dave Airlie <airlied@redhat.com>
From: Chun-Kuang Hu <chunkuang.hu@kernel.org>
Link: https://patchwork.freedesktop.org/patch/msgid/20200707153944.604-1-chunkuang.hu@kernel.org
Ido Schimmel says:
====================
Expose port split attributes
Danielle says:
Currently, user space has no way of knowing if a port can be split and
into how many ports. Among other things, this makes it impossible to
write generic tests for port split functionality.
Therefore, this set exposes two new devlink port attributes to user
space: Number of lanes and whether the port can be split or not.
Patch set overview:
Patches #1-#4 cleanup 'struct devlink_port_attrs' and reduce the number
of parameters passed between drivers and devlink via
devlink_port_attrs_set()
Patch #5 adds devlink port lanes attributes
Patches #6-#7 add devlink port splittable attribute
Patch #8 exploits the fact that devlink is now aware of port's number of
lanes and whether the port can be split or not and moves some checks
from drivers to devlink
Patch #9 adds a port split test
Changes since v2:
* Remove some local variables from patch #3
* Reword function description in patch #5
* Fix a bug in patch #8
* Add a test for the splittable attribute in patch #9
Changes since v1:
* Rename 'width' attribute to 'lanes'
* Add 'splittable' attribute
* Move checks from drivers to devlink
====================
Reviewed-by: Jakub Kicinski <kuba@kernel.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
Test port split configuration using previously added number of port lanes
attribute.
Check that all the splittable ports are successfully split to their maximum
number of lanes and below, and that those which are not splittable fail to
be split.
Test output example:
TEST: swp4 is unsplittable [ OK ]
TEST: split port swp53 into 4 [ OK ]
TEST: Unsplit port pci/0000:03:00.0/25 [ OK ]
TEST: split port swp53 into 2 [ OK ]
TEST: Unsplit port pci/0000:03:00.0/25 [ OK ]
Signed-off-by: Danielle Ratson <danieller@mellanox.com>
Reviewed-by: Petr Machata <petrm@mellanox.com>
Signed-off-by: Ido Schimmel <idosch@mellanox.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Currently, all the input checks are done in driver.
After adding the split capability to devlink port, move the checks to
devlink.
Signed-off-by: Danielle Ratson <danieller@mellanox.com>
Reviewed-by: Jiri Pirko <jiri@mellanox.com>
Signed-off-by: Ido Schimmel <idosch@mellanox.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Add a new attribute that indicates the split ability of devlink port.
Drivers are expected to set it via devlink_port_attrs_set(), before
registering the port.
Signed-off-by: Danielle Ratson <danieller@mellanox.com>
Reviewed-by: Jiri Pirko <jiri@mellanox.com>
Signed-off-by: Ido Schimmel <idosch@mellanox.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Currently, port attributes like flavour, port number and whether the port
was split are set when initializing a port.
Set the split ability of the port as well, based on port_mapping->width
field and split attribute of devlink port in spectrum, so that it could be
easily passed to devlink in the next patch.
Signed-off-by: Danielle Ratson <danieller@mellanox.com>
Reviewed-by: Jiri Pirko <jiri@mellanox.com>
Signed-off-by: Ido Schimmel <idosch@mellanox.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
