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The PCI core already updates the primary, secondary and subordinate bus
number registers fields of the Type 1 header.
Thus, remove the redundant code from the nwl_pcie_bridge_init().
[kwilczynski: commit log]
Link: https://lore.kernel.org/linux-pci/20231016051102.1180432-2-thippeswamy.havalige@amd.com
Signed-off-by: Thippeswamy Havalige <thippeswamy.havalige@amd.com>
Signed-off-by: Krzysztof Wilczyński <kwilczynski@kernel.org>
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commit ef8dd01538ea ("genirq/msi: Make interrupt allocation less
convoluted"), reworked the code so that the x86 specific quirk for affinity
setting of non-maskable PCI/MSI interrupts is not longer activated if
necessary.
This could be solved by restoring the original logic in the core MSI code,
but after a deeper analysis it turned out that the quirk flag is not
required at all.
The quirk is only required when the PCI/MSI device cannot mask the MSI
interrupts, which in turn also prevents reservation mode from being enabled
for the affected interrupt.
This allows ot remove the NOMASK quirk bit completely as msi_set_affinity()
can instead check whether reservation mode is enabled for the interrupt,
which gives exactly the same answer.
Even in the momentary non-existing case that the reservation mode would be
not set for a maskable MSI interrupt this would not cause any harm as it
just would cause msi_set_affinity() to go needlessly through the
functionaly equivalent slow path, which works perfectly fine with maskable
interrupts as well.
Rework msi_set_affinity() to query the reservation mode and remove all
NOMASK quirk logic from the core code.
[ tglx: Massaged changelog ]
Fixes: ef8dd01538ea ("genirq/msi: Make interrupt allocation less convoluted")
Suggested-by: Thomas Gleixner <tglx@linutronix.de>
Signed-off-by: Koichiro Den <den@valinux.co.jp>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Cc: stable@vger.kernel.org
Link: https://lore.kernel.org/r/20231026032036.2462428-1-den@valinux.co.jp
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Error path in snd_skl_parse_uuids() shall free last allocated module if
its instance_id allocation fails.
Fixes: f8e066521192 ("ASoC: Intel: Skylake: Fix uuid_module memory leak in failure case")
Signed-off-by: Cezary Rojewski <cezary.rojewski@intel.com>
Signed-off-by: Amadeusz Sławiński <amadeuszx.slawinski@linux.intel.com>
Link: https://lore.kernel.org/r/20231026082558.1864910-1-amadeuszx.slawinski@linux.intel.com
Signed-off-by: Mark Brown <broonie@kernel.org>
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Use snd_soc_dapm_widget_name_cmp() helper when comparing widget names,
to include also the component's name prefix.
Signed-off-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
Link: https://lore.kernel.org/r/20231023095428.166563-18-krzysztof.kozlowski@linaro.org
Signed-off-by: Mark Brown <broonie@kernel.org>
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Use snd_soc_dapm_widget_name_cmp() helper when comparing widget names,
to include also the component's name prefix.
Signed-off-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
Link: https://lore.kernel.org/r/20231023095428.166563-17-krzysztof.kozlowski@linaro.org
Signed-off-by: Mark Brown <broonie@kernel.org>
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Use snd_soc_dapm_widget_name_cmp() helper when comparing widget names,
to include also the component's name prefix.
Signed-off-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
Reviewed-by: AngeloGioacchino Del Regno <angelogioacchino.delregno@collabora.com>
Tested-by: AngeloGioacchino Del Regno <angelogioacchino.delregno@collabora.com>
Link: https://lore.kernel.org/r/20231023095428.166563-16-krzysztof.kozlowski@linaro.org
Signed-off-by: Mark Brown <broonie@kernel.org>
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Use snd_soc_dapm_widget_name_cmp() helper when comparing widget names,
to include also the component's name prefix.
Signed-off-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
Reviewed-by: AngeloGioacchino Del Regno <angelogioacchino.delregno@collabora.com>
Reviewed-by: Trevor Wu <trevor.wu@mediatek.com>
Link: https://lore.kernel.org/r/20231023095428.166563-15-krzysztof.kozlowski@linaro.org
Signed-off-by: Mark Brown <broonie@kernel.org>
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Use snd_soc_dapm_widget_name_cmp() helper when comparing widget names,
to include also the component's name prefix.
Signed-off-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
Reviewed-by: AngeloGioacchino Del Regno <angelogioacchino.delregno@collabora.com>
Tested-by: AngeloGioacchino Del Regno <angelogioacchino.delregno@collabora.com>
Link: https://lore.kernel.org/r/20231023095428.166563-14-krzysztof.kozlowski@linaro.org
Signed-off-by: Mark Brown <broonie@kernel.org>
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Use snd_soc_dapm_widget_name_cmp() helper when comparing widget names,
to include also the component's name prefix.
Signed-off-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
Reviewed-by: AngeloGioacchino Del Regno <angelogioacchino.delregno@collabora.com>
Link: https://lore.kernel.org/r/20231023095428.166563-13-krzysztof.kozlowski@linaro.org
Signed-off-by: Mark Brown <broonie@kernel.org>
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Use snd_soc_dapm_widget_name_cmp() helper when comparing widget names,
to include also the component's name prefix.
Signed-off-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
Acked-by: Charles Keepax <ckeepax@opensource.cirrus.com>
Link: https://lore.kernel.org/r/20231023095428.166563-12-krzysztof.kozlowski@linaro.org
Signed-off-by: Mark Brown <broonie@kernel.org>
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Use snd_soc_dapm_widget_name_cmp() helper when comparing widget names,
to include also the component's name prefix.
Signed-off-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
Acked-by: Charles Keepax <ckeepax@opensource.cirrus.com>
Link: https://lore.kernel.org/r/20231023095428.166563-11-krzysztof.kozlowski@linaro.org
Signed-off-by: Mark Brown <broonie@kernel.org>
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Use snd_soc_dapm_widget_name_cmp() helper when comparing widget names,
to include also the component's name prefix.
Signed-off-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
Acked-by: Charles Keepax <ckeepax@opensource.cirrus.com>
Link: https://lore.kernel.org/r/20231023095428.166563-10-krzysztof.kozlowski@linaro.org
Signed-off-by: Mark Brown <broonie@kernel.org>
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Use snd_soc_dapm_widget_name_cmp() helper when comparing widget names,
to include also the component's name prefix.
Signed-off-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
Link: https://lore.kernel.org/r/20231023095428.166563-9-krzysztof.kozlowski@linaro.org
Signed-off-by: Mark Brown <broonie@kernel.org>
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Use snd_soc_dapm_widget_name_cmp() helper when comparing widget names,
to include also the component's name prefix.
Signed-off-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
Link: https://lore.kernel.org/r/20231023095428.166563-8-krzysztof.kozlowski@linaro.org
Signed-off-by: Mark Brown <broonie@kernel.org>
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Use snd_soc_dapm_widget_name_cmp() helper when comparing widget names,
to include also the component's name prefix.
Signed-off-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
Link: https://lore.kernel.org/r/20231023095428.166563-7-krzysztof.kozlowski@linaro.org
Signed-off-by: Mark Brown <broonie@kernel.org>
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Use snd_soc_dapm_widget_name_cmp() helper when comparing widget names,
to include also the component's name prefix.
Signed-off-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
Reviewed-by: Nuno Sa <nuno.sa@analog.com>
Link: https://lore.kernel.org/r/20231023095428.166563-6-krzysztof.kozlowski@linaro.org
Signed-off-by: Mark Brown <broonie@kernel.org>
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Use snd_soc_dapm_widget_name_cmp() helper when comparing widget names,
to include also the component's name prefix.
Signed-off-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
Link: https://lore.kernel.org/r/20231023095428.166563-5-krzysztof.kozlowski@linaro.org
Signed-off-by: Mark Brown <broonie@kernel.org>
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Use snd_soc_dapm_widget_name_cmp() helper when comparing widget names,
to include also the component's name prefix.
Signed-off-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
Reviewed-by: Nuno Sa <nuno.sa@analog.com>
Link: https://lore.kernel.org/r/20231023095428.166563-4-krzysztof.kozlowski@linaro.org
Signed-off-by: Mark Brown <broonie@kernel.org>
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Use snd_soc_dapm_widget_name_cmp() helper when comparing widget names,
to include also the component's name prefix.
Signed-off-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
Reviewed-by: Nuno Sa <nuno.sa@analog.com>
Link: https://lore.kernel.org/r/20231023095428.166563-3-krzysztof.kozlowski@linaro.org
Signed-off-by: Mark Brown <broonie@kernel.org>
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Use snd_soc_dapm_widget_name_cmp() helper when comparing widget names,
to include also the component's name prefix.
Signed-off-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
Link: https://lore.kernel.org/r/20231023095428.166563-2-krzysztof.kozlowski@linaro.org
Signed-off-by: Mark Brown <broonie@kernel.org>
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On Ampere Altra, PCIe hotplug is handled through ACPI. A side interface is
also present to request system firmware control of the hotplug Attention
Indicators. Add an ACPI PCI Hotplug companion driver to support Attention
Indicator control.
Link: https://lore.kernel.org/r/20230930002036.6491-2-scott@os.amperecomputing.com
Signed-off-by: D Scott Phillips <scott@os.amperecomputing.com>
[bhelgaas: mask domain to low 4 bits]
Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
Acked-by: "Rafael J. Wysocki" <rafael@kernel.org>
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The TongFang GMxXGxx/TUXEDO Stellaris/Pollaris Gen5 needs IRQ overriding
for the keyboard to work.
Adding an entry for this laptop to the override_table makes the internal
keyboard functional.
Signed-off-by: Werner Sembach <wse@tuxedocomputers.com>
Cc: All applicable <stable@vger.kernel.org>
Reviewed-by: Hans de Goede <hdegoede@redhat.com>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
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git://git.kernel.org/pub/scm/linux/kernel/git/netfilter/nf-next
Pablo Neira Ayuso says:
====================
Netfilter updates for net-next
The following patchset contains Netfilter updates for net-next. Mostly
nf_tables updates with two patches for connlabel and br_netfilter.
1) Rename function name to perform on-demand GC for rbtree elements,
and replace async GC in rbtree by sync GC. Patches from Florian Westphal.
2) Use commit_mutex for NFT_MSG_GETRULE_RESET to ensure that two
concurrent threads invoking this command do not underrun stateful
objects. Patches from Phil Sutter.
3) Use single hook to deal with IP and ARP packets in br_netfilter.
Patch from Florian Westphal.
4) Use atomic_t in netns->connlabel use counter instead of using a
spinlock, also patch from Florian.
5) Cleanups for stateful objects infrastructure in nf_tables.
Patches from Phil Sutter.
6) Flush path uses opaque set element offered by the iterator, instead of
calling pipapo_deactivate() which looks up for it again.
7) Set backend .flush interface always succeeds, make it return void
instead.
8) Add struct nft_elem_priv placeholder structure and use it by replacing
void * to pass opaque set element representation from backend to frontend
which defeats compiler type checks.
9) Shrink memory consumption of set element transactions, by reducing
struct nft_trans_elem object size and reducing stack memory usage.
10) Use struct nft_elem_priv also for set backend .insert operation too.
11) Carry reset flag in nft_set_dump_ctx structure, instead of passing it
as a function argument, from Phil Sutter.
netfilter pull request 23-10-25
* tag 'nf-next-23-10-25' of git://git.kernel.org/pub/scm/linux/kernel/git/netfilter/nf-next:
netfilter: nf_tables: Carry reset boolean in nft_set_dump_ctx
netfilter: nf_tables: set->ops->insert returns opaque set element in case of EEXIST
netfilter: nf_tables: shrink memory consumption of set elements
netfilter: nf_tables: expose opaque set element as struct nft_elem_priv
netfilter: nf_tables: set backend .flush always succeeds
netfilter: nft_set_pipapo: no need to call pipapo_deactivate() from flush
netfilter: nf_tables: Carry reset boolean in nft_obj_dump_ctx
netfilter: nf_tables: nft_obj_filter fits into cb->ctx
netfilter: nf_tables: Carry s_idx in nft_obj_dump_ctx
netfilter: nf_tables: A better name for nft_obj_filter
netfilter: nf_tables: Unconditionally allocate nft_obj_filter
netfilter: nf_tables: Drop pointless memset in nf_tables_dump_obj
netfilter: conntrack: switch connlabels to atomic_t
br_netfilter: use single forward hook for ip and arp
netfilter: nf_tables: Add locking for NFT_MSG_GETRULE_RESET requests
netfilter: nf_tables: Introduce nf_tables_getrule_single()
netfilter: nf_tables: Open-code audit log call in nf_tables_getrule()
netfilter: nft_set_rbtree: prefer sync gc to async worker
netfilter: nft_set_rbtree: rename gc deactivate+erase function
====================
Link: https://lore.kernel.org/r/20231025212555.132775-1-pablo@netfilter.org
Signed-off-by: Paolo Abeni <pabeni@redhat.com>
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Merge an ACPICA change for 6.7-rc1 which adds symbol definitions related
to CDAT (Dave Jiang).
* acpica:
ACPICA: Add defines for CDAT SSLBIS
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Flaky tests can be very difficult to reproduce after the facts, which
will make it even harder to ever fix.
Let's document the metadata we agreed on to provide more context to
anyone trying to address these fixes.
Link: https://lore.kernel.org/dri-devel/CAPj87rPbJ1V1-R7WMTHkDat2A4nwSd61Df9mdGH2PR=ZzxaU=Q@mail.gmail.com/
Acked-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Acked-by: Helen Koike <helen.koike@collabora.com>
Signed-off-by: Maxime Ripard <mripard@kernel.org>
Link: https://patchwork.freedesktop.org/patch/msgid/20231025142441.745947-1-mripard@kernel.org
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hid_connect() will call hid_pidff_init() which does
hid_device_io_start() leading to an "io already started" warning.
To fix this call hid_device_io_stop() before calling hid_connect(),
stopping IO means that connect events may be lost while hid_connect()
runs, re-enable IO and move the hidpp_connect_event() work queuing
after the hid_connect().
Note re-enabling IO is also necessary for the g920_get_config()
call later during hidpp_probe().
Signed-off-by: Hans de Goede <hdegoede@redhat.com>
Link: https://lore.kernel.org/r/20231025190151.302376-1-hdegoede@redhat.com
Signed-off-by: Benjamin Tissoires <bentiss@kernel.org>
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Replace the old __attribute__((packed)) with the new __packed.
Only cleanup, no functional changes.
Link: https://lore.kernel.org/r/20231025132314.5878-12-tiwai@suse.de
Signed-off-by: Takashi Iwai <tiwai@suse.de>
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The header file contains lots of outdated comments and definitions.
Drop those as cleanup.
Link: https://lore.kernel.org/r/20231025132314.5878-11-tiwai@suse.de
Signed-off-by: Takashi Iwai <tiwai@suse.de>
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Replace the old __attribute__((packed)) with the new __packed.
Only cleanup, no functional changes.
Link: https://lore.kernel.org/r/20231025132314.5878-10-tiwai@suse.de
Signed-off-by: Takashi Iwai <tiwai@suse.de>
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Replace the old __attribute__((packed)) with the new __packed.
Only cleanup, no functional changes.
Link: https://lore.kernel.org/r/20231025132314.5878-9-tiwai@suse.de
Signed-off-by: Takashi Iwai <tiwai@suse.de>
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Replace the old __attribute__((packed)) with the new __packed.
Only cleanup, no functional changes.
Link: https://lore.kernel.org/r/20231025132314.5878-8-tiwai@suse.de
Signed-off-by: Takashi Iwai <tiwai@suse.de>
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Replace the old __attribute__((packed)) with the new __packed.
Only cleanup, no functional changes.
Link: https://lore.kernel.org/r/20231025132314.5878-7-tiwai@suse.de
Signed-off-by: Takashi Iwai <tiwai@suse.de>
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Replace the old __attribute__((packed)) with the new __packed.
Only cleanup, no functional changes.
Link: https://lore.kernel.org/r/20231025132314.5878-6-tiwai@suse.de
Signed-off-by: Takashi Iwai <tiwai@suse.de>
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Replace the old __attribute__((packed)) with the new __packed.
Only cleanup, no functional changes.
Link: https://lore.kernel.org/r/20231025132314.5878-5-tiwai@suse.de
Signed-off-by: Takashi Iwai <tiwai@suse.de>
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Replace the old __attribute__((packed)) with the new __packed.
Only cleanup, no functional changes.
Link: https://lore.kernel.org/r/20231025132314.5878-4-tiwai@suse.de
Signed-off-by: Takashi Iwai <tiwai@suse.de>
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Replace the old __attribute__((packed)) with the new __packed.
Only cleanup, no functional changes.
Link: https://lore.kernel.org/r/20231025132314.5878-3-tiwai@suse.de
Signed-off-by: Takashi Iwai <tiwai@suse.de>
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Replace the old __attribute__((packed)) with the new __packed.
Only cleanup, no functional changes.
Link: https://lore.kernel.org/r/20231025132314.5878-2-tiwai@suse.de
Signed-off-by: Takashi Iwai <tiwai@suse.de>
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ARCH_R9A07G043 has its own non-standard global pool based DMA coherent
allocator, which conflicts with the remap based RISCV_ISA_ZICBOM version.
Add a proper dependency.
Signed-off-by: Christoph Hellwig <hch@lst.de>
Reviewed-by: Lad Prabhakar <prabhakar.mahadev-lad.rj@bp.renesas.com>
Acked-by: Conor Dooley <conor.dooley@microchip.com>
Acked-by: Geert Uytterhoeven <geert+renesas@glider.be>
Link: https://lore.kernel.org/r/20231018052654.50074-4-hch@lst.de
Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
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RISCV_DMA_NONCOHERENT is also used for whacky non-standard
non-coherent ops that use different hooks in dma-direct.
Signed-off-by: Christoph Hellwig <hch@lst.de>
Reviewed-by: Conor Dooley <conor.dooley@microchip.com>
Reviewed-by: Robin Murphy <robin.murphy@arm.com>
Reviewed-by: Lad Prabhakar <prabhakar.mahadev-lad.rj@bp.renesas.com>
Tested-by: Samuel Holland <samuel.holland@sifive.com>
Link: https://lore.kernel.org/r/20231018052654.50074-3-hch@lst.de
Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
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RISCV_NONSTANDARD_CACHE_OPS is also used for the pmem cache maintenance
helpers, which are built into the kernel unconditionally.
Signed-off-by: Christoph Hellwig <hch@lst.de>
Acked-by: Conor Dooley <conor.dooley@microchip.com>
Link: https://lore.kernel.org/r/20231018052654.50074-2-hch@lst.de
Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
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Move sequence of masking and unmasking global interrupts from buttress
interrupt handler to generic one that handles both VPUIP and BTRS
interrupts. Unmasking global interrupts will re-trigger MSI for any
pending interrupts.
Lack of this sequence will cause the driver to miss any
VPUIP interrupt that comes after reading VPU_37XX_HOST_SS_ICB_STATUS_0
and before clearing all active interrupt sources.
Fixes: 35b137630f08 ("accel/ivpu: Introduce a new DRM driver for Intel VPU")
Cc: stable@vger.kernel.org
Signed-off-by: Karol Wachowski <karol.wachowski@linux.intel.com>
Reviewed-by: Stanislaw Gruszka <stanislaw.gruszka@linux.intel.com>
Signed-off-by: Stanislaw Gruszka <stanislaw.gruszka@linux.intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20231024161952.759914-1-stanislaw.gruszka@linux.intel.com
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The get_task_exe_file() function locks the given task with task_lock()
which when used inside audit_exe_compare() can cause deadlocks on
systems that generate audit records when the task_lock() is held. We
resolve this problem with two changes: ignoring those cases where the
task being audited is not the current task, and changing our approach
to obtaining the executable file struct to not require task_lock().
With the intent of the audit exe filter being to filter on audit events
generated by processes started by the specified executable, it makes
sense that we would only want to use the exe filter on audit records
associated with the currently executing process, e.g. @current. If
we are asked to filter records using a non-@current task_struct we can
safely ignore the exe filter without negatively impacting the admin's
expectations for the exe filter.
Knowing that we only have to worry about filtering the currently
executing task in audit_exe_compare() we can do away with the
task_lock() and call get_mm_exe_file() with @current->mm directly.
Cc: <stable@vger.kernel.org>
Fixes: 5efc244346f9 ("audit: fix exe_file access in audit_exe_compare")
Reported-by: Andreas Steinmetz <anstein99@googlemail.com>
Reviewed-by: John Johansen <john.johanse@canonical.com>
Reviewed-by: Mateusz Guzik <mjguzik@gmail.com>
Signed-off-by: Paul Moore <paul@paul-moore.com>
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'net-ipv6-addrconf-ensure-that-temporary-addresses-preferred-lifetimes-are-in-the-valid-range'
Alex Henrie says:
====================
net: ipv6/addrconf: ensure that temporary addresses' preferred lifetimes are in the valid range
No changes from v2, but there are only four patches now because the
first patch has already been applied.
https://lore.kernel.org/all/20230829054623.104293-1-alexhenrie24@gmail.com/
====================
Link: https://lore.kernel.org/r/20231024212312.299370-1-alexhenrie24@gmail.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
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small or too large
Signed-off-by: Alex Henrie <alexhenrie24@gmail.com>
Reviewed-by: David Ahern <dsahern@kernel.org>
Link: https://lore.kernel.org/r/20231024212312.299370-5-alexhenrie24@gmail.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
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Signed-off-by: Alex Henrie <alexhenrie24@gmail.com>
Reviewed-by: David Ahern <dsahern@kernel.org>
Link: https://lore.kernel.org/r/20231024212312.299370-4-alexhenrie24@gmail.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
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If the preferred lifetime was less than the minimum required lifetime,
ipv6_create_tempaddr would error out without creating any new address.
On my machine and network, this error happened immediately with the
preferred lifetime set to 1 second, after a few minutes with the
preferred lifetime set to 4 seconds, and not at all with the preferred
lifetime set to 5 seconds. During my investigation, I found a Stack
Exchange post from another person who seems to have had the same
problem: They stopped getting new addresses if they lowered the
preferred lifetime below 3 seconds, and they didn't really know why.
The preferred lifetime is a preference, not a hard requirement. The
kernel does not strictly forbid new connections on a deprecated address,
nor does it guarantee that the address will be disposed of the instant
its total valid lifetime expires. So rather than disable IPv6 privacy
extensions altogether if the minimum required lifetime swells above the
preferred lifetime, it is more in keeping with the user's intent to
increase the temporary address's lifetime to the minimum necessary for
the current network conditions.
With these fixes, setting the preferred lifetime to 3 or 4 seconds "just
works" because the extra fraction of a second is practically
unnoticeable. It's even possible to reduce the time before deprecation
to 1 or 2 seconds by also disabling duplicate address detection (setting
/proc/sys/net/ipv6/conf/*/dad_transmits to 0). I realize that that is a
pretty niche use case, but I know at least one person who would gladly
sacrifice performance and convenience to be sure that they are getting
the maximum possible level of privacy.
Link: https://serverfault.com/a/1031168/310447
Signed-off-by: Alex Henrie <alexhenrie24@gmail.com>
Reviewed-by: David Ahern <dsahern@kernel.org>
Link: https://lore.kernel.org/r/20231024212312.299370-3-alexhenrie24@gmail.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
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Without this patch, there is nothing to stop the preferred lifetime of a
temporary address from being greater than its valid lifetime. If that
was the case, the valid lifetime was effectively ignored.
Signed-off-by: Alex Henrie <alexhenrie24@gmail.com>
Reviewed-by: David Ahern <dsahern@kernel.org>
Link: https://lore.kernel.org/r/20231024212312.299370-2-alexhenrie24@gmail.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
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Yan Zhai says:
====================
ipv6: avoid atomic fragment on GSO output
When the ipv6 stack output a GSO packet, if its gso_size is larger than
dst MTU, then all segments would be fragmented. However, it is possible
for a GSO packet to have a trailing segment with smaller actual size
than both gso_size as well as the MTU, which leads to an "atomic
fragment". Atomic fragments are considered harmful in RFC-8021. An
Existing report from APNIC also shows that atomic fragments are more
likely to be dropped even it is equivalent to a no-op [1].
The series contains following changes:
* drop feature RTAX_FEATURE_ALLFRAG, which has been broken. This helps
simplifying other changes in this set.
* refactor __ip6_finish_output code to separate GSO and non-GSO packet
processing, mirroring IPv4 side logic.
* avoid generating atomic fragment on GSO packets.
Link: https://www.potaroo.net/presentations/2022-03-01-ipv6-frag.pdf [1]
V4: https://lore.kernel.org/netdev/cover.1698114636.git.yan@cloudflare.com/
V3: https://lore.kernel.org/netdev/cover.1697779681.git.yan@cloudflare.com/
V2: https://lore.kernel.org/netdev/ZS1%2Fqtr0dZJ35VII@debian.debian/
====================
Link: https://lore.kernel.org/r/cover.1698156966.git.yan@cloudflare.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
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When the ipv6 stack output a GSO packet, if its gso_size is larger than
dst MTU, then all segments would be fragmented. However, it is possible
for a GSO packet to have a trailing segment with smaller actual size
than both gso_size as well as the MTU, which leads to an "atomic
fragment". Atomic fragments are considered harmful in RFC-8021. An
Existing report from APNIC also shows that atomic fragments are more
likely to be dropped even it is equivalent to a no-op [1].
Add an extra check in the GSO slow output path. For each segment from
the original over-sized packet, if it fits with the path MTU, then avoid
generating an atomic fragment.
Link: https://www.potaroo.net/presentations/2022-03-01-ipv6-frag.pdf [1]
Fixes: b210de4f8c97 ("net: ipv6: Validate GSO SKB before finish IPv6 processing")
Reported-by: David Wragg <dwragg@cloudflare.com>
Signed-off-by: Yan Zhai <yan@cloudflare.com>
Link: https://lore.kernel.org/r/90912e3503a242dca0bc36958b11ed03a2696e5e.1698156966.git.yan@cloudflare.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
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