XGMAC supports maximum MTU that can go to 16KB. Lets add this check in
the calculation of RX buffer size.
Fixes: 7ac6653a08 ("stmmac: Move the STMicroelectronics driver")
Signed-off-by: Jose Abreu <Jose.Abreu@synopsys.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
The 16KB RX Buffer must also be 16 byte aligned. Fix it.
Fixes: 7ac6653a08 ("stmmac: Move the STMicroelectronics driver")
Signed-off-by: Jose Abreu <Jose.Abreu@synopsys.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
We need to align the RX buffer size to at least 16 byte so that IP
doesn't mis-behave. This is required by HW.
Changes from v2:
- Align UP and not DOWN (David)
Fixes: 7ac6653a08 ("stmmac: Move the STMicroelectronics driver")
Signed-off-by: Jose Abreu <Jose.Abreu@synopsys.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
When switching between buffer sizes we need to clear the previous value.
Fixes: d6ddfacd95 ("net: stmmac: Add DMA related callbacks for XGMAC2")
Signed-off-by: Jose Abreu <Jose.Abreu@synopsys.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Only the last received buffer contains the FCS field. Check for end of
packet before trying to strip the FCS field.
Fixes: 88ebe2cf7f ("net: stmmac: Rework stmmac_rx()")
Signed-off-by: Jose Abreu <Jose.Abreu@synopsys.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
The maximum MTU value is determined by the maximum size of TX FIFO so
that a full packet can fit in the FIFO. Add a check for this in the MTU
change callback.
Also check if provided and rounded MTU does not passes the maximum limit
of 16K.
Changes from v2:
- Align MTU before checking if its valid
Fixes: 7ac6653a08 ("stmmac: Move the STMicroelectronics driver")
Signed-off-by: Jose Abreu <Jose.Abreu@synopsys.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Split Header feature needs to know the size of RX buffer but current
code is determining it too late. Fix this by moving the RX buffer
computation to earlier stage.
Changes from v2:
- Do not try to align already aligned buffer size
Fixes: 67afd6d1cf ("net: stmmac: Add Split Header support and enable it in XGMAC cores")
Signed-off-by: Jose Abreu <Jose.Abreu@synopsys.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
When running the MC and UC filter tests we setup a multicast address
that its expected to be blocked. If the number of available multicast
registers is zero, driver will always pass the multicast packets which
will fail the test.
Check if available multicast addresses is enough before running the
tests.
Fixes: 091810dbde ("net: stmmac: Introduce selftests support")
Signed-off-by: Jose Abreu <Jose.Abreu@synopsys.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
The kernel may sleep while holding a spinlock.
The function call path (from bottom to top) in Linux 4.19 is:
net/nfc/nci/uart.c, 349:
nci_skb_alloc in nci_uart_default_recv_buf
net/nfc/nci/uart.c, 255:
(FUNC_PTR)nci_uart_default_recv_buf in nci_uart_tty_receive
net/nfc/nci/uart.c, 254:
spin_lock in nci_uart_tty_receive
nci_skb_alloc(GFP_KERNEL) can sleep at runtime.
(FUNC_PTR) means a function pointer is called.
To fix this bug, GFP_KERNEL is replaced with GFP_ATOMIC for
nci_skb_alloc().
This bug is found by a static analysis tool STCheck written by myself.
Signed-off-by: Jia-Ju Bai <baijiaju1990@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
I've been chasing a weird and obscure crash that was userspace stack
corruption, and finally narrowed it down to a bit flip that made a
stack address invalid. io_wq_submit_work() unconditionally flips
the req->rw.ki_flags IOCB_NOWAIT bit, but since it's a generic work
handler, this isn't valid. Normal read/write operations own that
part of the request, on other types it could be something else.
Move the IOCB_NOWAIT clear to the read/write handlers where it belongs.
Signed-off-by: Jens Axboe <axboe@kernel.dk>
The following build warning is seen if CONFIG_PM is disabled.
drivers/usb/host/xhci-pci.c:498:13: warning:
unused function 'xhci_pci_shutdown'
Fixes: f2c710f7dc ("usb: xhci: only set D3hot for pci device")
Cc: Henry Lin <henryl@nvidia.com>
Cc: stable@vger.kernel.org # all stable releases with f2c710f7dc
Signed-off-by: Guenter Roeck <linux@roeck-us.net>
Acked-by: Mathias Nyman <mathias.nyman@linux.intel.com>
Link: https://lore.kernel.org/r/20191218011911.6907-1-linux@roeck-us.net
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
A recent addition exposed a helper that is only used for CONFIG_OF. Move
it into the CONFIG_OF zone in this file to make the compiler stop
warning about an unused function.
Fixes: 66d9506440 ("clk: walk orphan list on clock provider registration")
Signed-off-by: Olof Johansson <olof@lixom.net>
Link: https://lkml.kernel.org/r/20191217082501.424892072D@mail.kernel.org
[sboyd@kernel.org: "Simply" move the function instead]
Signed-off-by: Stephen Boyd <sboyd@kernel.org>
There is no reliable way to submit and wait in a single syscall, as
io_submit_sqes() may under-consume sqes (in case of an early error).
Then it will wait for not-yet-submitted requests, deadlocking the user
in most cases.
Don't wait/poll if can't submit all sqes
Signed-off-by: Pavel Begunkov <asml.silence@gmail.com>
Signed-off-by: Jens Axboe <axboe@kernel.dk>
A slightly high amount at this time, but all good and small fixes.
- A PCM core fix that initializes the buffer properly for avoiding
information leaks; it is a long-standing minor problem, but good
to fix better now
- A few ASoC core fixes for the init / cleanup ordering issues
that surfaced after the recent refactoring
- Lots of SOF and topology-related fixes went in, as usual as such
hot topics
- Several ASoC codec and platform-specific small fixes: wm89xx,
realtek, and max98090, AMD, Intel-SST
- A fix for the previous incomplete regression of HD-audio, now
hitting Nvidia HDMI
- A few HD-audio CA0132 codec fixes
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Merge tag 'sound-5.5-rc3' of git://git.kernel.org/pub/scm/linux/kernel/git/tiwai/sound
Pull sound fixes from Takashi Iwai:
"A slightly high amount at this time, but all good and small fixes:
- A PCM core fix that initializes the buffer properly for avoiding
information leaks; it is a long-standing minor problem, but good to
fix better now
- A few ASoC core fixes for the init / cleanup ordering issues that
surfaced after the recent refactoring
- Lots of SOF and topology-related fixes went in, as usual as such
hot topics
- Several ASoC codec and platform-specific small fixes: wm89xx,
realtek, and max98090, AMD, Intel-SST
- A fix for the previous incomplete regression of HD-audio, now
hitting Nvidia HDMI
- A few HD-audio CA0132 codec fixes"
* tag 'sound-5.5-rc3' of git://git.kernel.org/pub/scm/linux/kernel/git/tiwai/sound: (27 commits)
ALSA: hda - Downgrade error message for single-cmd fallback
ASoC: wm8962: fix lambda value
ALSA: hda: Fix regression by strip mask fix
ALSA: hda/ca0132 - Fix work handling in delayed HP detection
ALSA: hda/ca0132 - Avoid endless loop
ALSA: hda/ca0132 - Keep power on during processing DSP response
ALSA: pcm: Avoid possible info leaks from PCM stream buffers
ASoC: Intel: common: work-around incorrect ACPI HID for CML boards
ASoC: SOF: Intel: split cht and byt debug window sizes
ASoC: SOF: loader: fix snd_sof_fw_parse_ext_data
ASoC: SOF: loader: snd_sof_fw_parse_ext_data log warning on unknown header
ASoC: simple-card: Don't create separate link when platform is present
ASoC: topology: Check return value for soc_tplg_pcm_create()
ASoC: topology: Check return value for snd_soc_add_dai_link()
ASoC: core: only flush inited work during free
ASoC: Intel: bytcr_rt5640: Update quirk for Teclast X89
ASoC: core: Init pcm runtime work early to avoid warnings
ASoC: Intel: sst: Add missing include <linux/io.h>
ASoC: max98090: fix possible race conditions
ASoC: max98090: exit workaround earlier if PLL is locked
...
The host reports support for the synthetic feature X86_FEATURE_SSBD
when any of the three following hardware features are set:
CPUID.(EAX=7,ECX=0):EDX.SSBD[bit 31]
CPUID.80000008H:EBX.AMD_SSBD[bit 24]
CPUID.80000008H:EBX.VIRT_SSBD[bit 25]
Either of the first two hardware features implies the existence of the
IA32_SPEC_CTRL MSR, but CPUID.80000008H:EBX.VIRT_SSBD[bit 25] does
not. Therefore, CPUID.80000008H:EBX.AMD_SSBD[bit 24] should only be
set in the guest if CPUID.(EAX=7,ECX=0):EDX.SSBD[bit 31] or
CPUID.80000008H:EBX.AMD_SSBD[bit 24] is set on the host.
Fixes: 4c6903a0f9 ("KVM: x86: fix reporting of AMD speculation bug CPUID leaf")
Signed-off-by: Jim Mattson <jmattson@google.com>
Reviewed-by: Jacob Xu <jacobhxu@google.com>
Reviewed-by: Peter Shier <pshier@google.com>
Cc: Paolo Bonzini <pbonzini@redhat.com>
Cc: stable@vger.kernel.org
Reported-by: Eric Biggers <ebiggers@kernel.org>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
The host reports support for the synthetic feature X86_FEATURE_SSBD
when any of the three following hardware features are set:
CPUID.(EAX=7,ECX=0):EDX.SSBD[bit 31]
CPUID.80000008H:EBX.AMD_SSBD[bit 24]
CPUID.80000008H:EBX.VIRT_SSBD[bit 25]
Either of the first two hardware features implies the existence of the
IA32_SPEC_CTRL MSR, but CPUID.80000008H:EBX.VIRT_SSBD[bit 25] does
not. Therefore, CPUID.(EAX=7,ECX=0):EDX.SSBD[bit 31] should only be
set in the guest if CPUID.(EAX=7,ECX=0):EDX.SSBD[bit 31] or
CPUID.80000008H:EBX.AMD_SSBD[bit 24] is set on the host.
Fixes: 0c54914d0c ("KVM: x86: use Intel speculation bugs and features as derived in generic x86 code")
Signed-off-by: Jim Mattson <jmattson@google.com>
Reviewed-by: Jacob Xu <jacobhxu@google.com>
Reviewed-by: Peter Shier <pshier@google.com>
Cc: Paolo Bonzini <pbonzini@redhat.com>
Cc: stable@vger.kernel.org
Reported-by: Eric Biggers <ebiggers@kernel.org>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Since commit ece6e6f021 ("iommu/dma-iommu: Split iommu_dma_map_msi_msg()
in two parts"), iommu_dma_prepare_msi() should no longer have to worry
about preempting itself, nor being called in atomic context at all. Thus
we can downgrade the IRQ-safe locking to a simple mutex to avoid angering
the new might_sleep() check in iommu_map().
Reported-by: Qian Cai <cai@lca.pw>
Tested-by: Jean-Philippe Brucker <jean-philippe@linaro.org>
Signed-off-by: Robin Murphy <robin.murphy@arm.com>
Signed-off-by: Joerg Roedel <jroedel@suse.de>
In smmu_pmu_probe(), there is put_cpu() in the error path,
which is wrong because we use raw_smp_processor_id() to
get the cpu ID, not get_cpu(), remove it.
While we are at it, kill 'out_cpuhp_err' altogether and
just return err if we fail to add the hotplug instance.
Acked-by: Robin Murphy <robin.murphy@arm.com>
Acked-by: Will Deacon <will@kernel.org>
Signed-off-by: Hanjun Guo <guohanjun@huawei.com>
Signed-off-by: Catalin Marinas <catalin.marinas@arm.com>
The PSI (Page Selective Invalidation) bit in the capability register
is only valid for second-level translation. Intel IOMMU supporting
scalable mode must support page/address selective IOTLB invalidation
for first-level translation. Remove the PSI capability check in SVA
cache invalidation code.
Fixes: 8744daf4b0 ("iommu/vt-d: Remove global page flush support")
Cc: Jacob Pan <jacob.jun.pan@linux.intel.com>
Signed-off-by: Lu Baolu <baolu.lu@linux.intel.com>
Signed-off-by: Joerg Roedel <jroedel@suse.de>
Original code allows to detect an BSS loss during a scan and delaying
the handling of BSS loss. However, there it is no real problem to just
make these two events mutually exclusive (there is just a performance
penalty).
Signed-off-by: Jérôme Pouiller <jerome.pouiller@silabs.com>
Link: https://lore.kernel.org/r/20191217161318.31402-54-Jerome.Pouiller@silabs.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Original code allows to detect an unjoin request during a scan and
delaying the unjoin request. However, it is far easier to just block the
unjoin request until the end of the scan request.
In fact, it is already the case since scan and unjoin are protected by
conf_mutex. So, currently, the handling of delayed_unjoin is just dead
code.
Signed-off-by: Jérôme Pouiller <jerome.pouiller@silabs.com>
Link: https://lore.kernel.org/r/20191217161318.31402-53-Jerome.Pouiller@silabs.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
mac80211 specification does not forbid hw_scan() to call
ieee80211_scan_completed(). However, from userspace point of view, not
all applications support this behavior. In particular, the code of iw
contains a big fat warning:
/*
* This code has a bug, which requires creating a separate
* nl80211 socket to fix:
* It is possible for a NL80211_CMD_NEW_SCAN_RESULTS or
* NL80211_CMD_SCAN_ABORTED message to be sent by the kernel
* before (!) we listen to it, because we only start listening
* after we send our scan request.
[...]
* Alas, the kernel doesn't do that (yet).
*/
So, we have to avoid to call ieee80211_scan_completed() from hw_scan()
(it's a kind of unwritten rule).
This patch relocates the hw_scan() process to a work_struct to fix the
problem.
Signed-off-by: Jérôme Pouiller <jerome.pouiller@silabs.com>
Link: https://lore.kernel.org/r/20191217161318.31402-52-Jerome.Pouiller@silabs.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Scan requests from mac80211 must be splitted in a few hardware requests
(it is necessary to split channels with active scan and channels with
passive scan). Current code schedules a work_struct for each hardware
request and one delayed_work to handle scan timeout.
It is far simpler to run send all the hardware requests synchronously
and replace delayed_work with a simple wait_for_completion_timeout().
Signed-off-by: Jérôme Pouiller <jerome.pouiller@silabs.com>
Link: https://lore.kernel.org/r/20191217161318.31402-51-Jerome.Pouiller@silabs.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
The structure hif_mib_template_frame come from hardware API. It is not
intended to be manipulated in upper layers of the driver.
In add, the current code for hif_set_template_frame() is dumb. All the
difficult task is left to the caller. So, there is code to factorize
here.
Signed-off-by: Jérôme Pouiller <jerome.pouiller@silabs.com>
Link: https://lore.kernel.org/r/20191217161318.31402-50-Jerome.Pouiller@silabs.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
The structures hif_req_start_scan and hif_ssid_def come from hardware
API. It is not intended to be manipulated in upper layers of the driver.
So, this patch relocate handling of theses structures to hif_scan()
(the low level function). This change also allows to drop struct
wfx_scan_params.
Signed-off-by: Jérôme Pouiller <jerome.pouiller@silabs.com>
Link: https://lore.kernel.org/r/20191217161318.31402-48-Jerome.Pouiller@silabs.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Since wfx_scan_complete() is now only called from
wfx_scan_complete_cb(), it make sense to merge the both functions.
Signed-off-by: Jérôme Pouiller <jerome.pouiller@silabs.com>
Link: https://lore.kernel.org/r/20191217161318.31402-47-Jerome.Pouiller@silabs.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
The device is not allowed to enter in sleep mode during scan. However,
this is already handled by the device. So driver does not have to care
about it.
Signed-off-by: Jérôme Pouiller <jerome.pouiller@silabs.com>
Link: https://lore.kernel.org/r/20191217161318.31402-46-Jerome.Pouiller@silabs.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
If scan fails, status is returned in hif_ind_scan_cmpl. hif_scan
always return a success. So, we can simplify the code.
Signed-off-by: Jérôme Pouiller <jerome.pouiller@silabs.com>
Link: https://lore.kernel.org/r/20191217161318.31402-45-Jerome.Pouiller@silabs.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
The struct hif_req_edca_queue_params comes from hardware API. It is not
intended to be manipulated in upper layers of the driver.
So, this patch:
1. relocate the handling of this struct in hif_set_edca_queue_params()
(the low level function)
2. replace it in wfx_vif by the mac80211 equivalent: struct
ieee80211_tx_queue_params
Signed-off-by: Jérôme Pouiller <jerome.pouiller@silabs.com>
Link: https://lore.kernel.org/r/20191217161318.31402-44-Jerome.Pouiller@silabs.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
mac80211 already call wfx_conf_tx() on every VIF instanciation. So, the
driver does not need to do it.
Note that current code did dirty things with wvif->edca_params. This
struct was initialized, but only 'queue_id' was really used. The other
members are only used to store temporary values.
Signed-off-by: Jérôme Pouiller <jerome.pouiller@silabs.com>
Link: https://lore.kernel.org/r/20191217161318.31402-43-Jerome.Pouiller@silabs.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Intermediate structure wfx_edca_params does not help. This patch
relocates its members directly in struct wfx_vif.
Signed-off-by: Jérôme Pouiller <jerome.pouiller@silabs.com>
Link: https://lore.kernel.org/r/20191217161318.31402-42-Jerome.Pouiller@silabs.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
The struct hif_req_set_pm_mode comes from hardware API. It is not
intended to be manipulated in upper layers of the driver. So, this patch
relocate the handling of this struct to hif_set_pm() (the low level
function).
Signed-off-by: Jérôme Pouiller <jerome.pouiller@silabs.com>
Link: https://lore.kernel.org/r/20191217161318.31402-41-Jerome.Pouiller@silabs.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
It is useless to keep uapsd_info in struct wfx_vif. This structure can
be rebuilt just before to be sent.
In add, the struct hif_mib_set_uapsd_information comes from hardware
API. It is not intended to be manipulated in upper layers of the driver.
So, this patch relocates the handling of this struct to
hif_set_uapsd_info() (the low level function).
Signed-off-by: Jérôme Pouiller <jerome.pouiller@silabs.com>
Link: https://lore.kernel.org/r/20191217161318.31402-40-Jerome.Pouiller@silabs.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Error management of wfx_conf_tx() can be simplified.
In add, the hardware command "hif_set_edca_queue_params" never returns
any error.
Signed-off-by: Jérôme Pouiller <jerome.pouiller@silabs.com>
Link: https://lore.kernel.org/r/20191217161318.31402-38-Jerome.Pouiller@silabs.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Current code try to not exchange data with device if it is not
necessary. However, it seems that the additional code does not provide
any gain. So, we prefer to keep a simpler code.
Signed-off-by: Jérôme Pouiller <jerome.pouiller@silabs.com>
Link: https://lore.kernel.org/r/20191217161318.31402-36-Jerome.Pouiller@silabs.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Power save status is already available in bss_conf. So there is no
reason to keep information duplicated in wvif->powersave_mode.
In add, type of wvif->powersave_mode is low level struct made to
communicate with device. We would like to limit usage of this kind of
struct in upper layers of the driver.
Signed-off-by: Jérôme Pouiller <jerome.pouiller@silabs.com>
Link: https://lore.kernel.org/r/20191217161318.31402-35-Jerome.Pouiller@silabs.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Condition about wvif->state and wvif->bss_params.aid is already checked
at beginning of wfx_update_pm().
Signed-off-by: Jérôme Pouiller <jerome.pouiller@silabs.com>
Link: https://lore.kernel.org/r/20191217161318.31402-34-Jerome.Pouiller@silabs.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
When user try to launch scan while connected, it is necessary to notify
the AP that we cannot receive data (using power save mode).
Firmware already handles this automatically so the code in the driver is
redundant and can be dropped.
By edge effect, hack of scan status in wfx_set_pm() is now useless.
Signed-off-by: Jérôme Pouiller <jerome.pouiller@silabs.com>
Link: https://lore.kernel.org/r/20191217161318.31402-31-Jerome.Pouiller@silabs.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
In the old days, wfx_do_join() could be called from different contexts.
Now that wfx_do_join() is called only from one place, it is cleaner to
keep lock and unlock of data inside the function.
Signed-off-by: Jérôme Pouiller <jerome.pouiller@silabs.com>
Link: https://lore.kernel.org/r/20191217161318.31402-30-Jerome.Pouiller@silabs.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Current name "mixed_or_greenfield_type" does not allow to know if
"true" means "mixed" of "greenfield". It is possible to use a better
name and drop "enum hif_tx_mode".
Signed-off-by: Jérôme Pouiller <jerome.pouiller@silabs.com>
Link: https://lore.kernel.org/r/20191217161318.31402-29-Jerome.Pouiller@silabs.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
HIF_PREAMBLE_SHORT_LONG12 is never used. So it is possible to change
"preamble_type" into a boolean and drop "enum hif_preamble".
Signed-off-by: Jérôme Pouiller <jerome.pouiller@silabs.com>
Link: https://lore.kernel.org/r/20191217161318.31402-28-Jerome.Pouiller@silabs.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
In fact "mode" is a boolean that indicates if IBSS mode is used. This
patch fixes the name and uses a more adapted memory representation.
Signed-off-by: Jérôme Pouiller <jerome.pouiller@silabs.com>
Link: https://lore.kernel.org/r/20191217161318.31402-27-Jerome.Pouiller@silabs.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
