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2022-07-22tcp: Fix a data-race around sysctl_tcp_limit_output_bytes.Kuniyuki Iwashima1-1/+1
While reading sysctl_tcp_limit_output_bytes, it can be changed concurrently. Thus, we need to add READ_ONCE() to its reader. Fixes: 46d3ceabd8d9 ("tcp: TCP Small Queues") Signed-off-by: Kuniyuki Iwashima <kuniyu@amazon.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2022-07-22tcp: Fix data-races around sysctl_tcp_workaround_signed_windows.Kuniyuki Iwashima2-3/+3
While reading sysctl_tcp_workaround_signed_windows, it can be changed concurrently. Thus, we need to add READ_ONCE() to its readers. Fixes: 15d99e02baba ("[TCP]: sysctl to allow TCP window > 32767 sans wscale") Signed-off-by: Kuniyuki Iwashima <kuniyu@amazon.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2022-07-22tcp: Fix data-races around sysctl_tcp_moderate_rcvbuf.Kuniyuki Iwashima2-2/+2
While reading sysctl_tcp_moderate_rcvbuf, it can be changed concurrently. Thus, we need to add READ_ONCE() to its readers. Fixes: 1da177e4c3f4 ("Linux-2.6.12-rc2") Signed-off-by: Kuniyuki Iwashima <kuniyu@amazon.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2022-07-22tcp: Fix data-races around sysctl_tcp_no_ssthresh_metrics_save.Kuniyuki Iwashima1-4/+4
While reading sysctl_tcp_no_ssthresh_metrics_save, it can be changed concurrently. Thus, we need to add READ_ONCE() to its readers. Fixes: 65e6d90168f3 ("net-tcp: Disable TCP ssthresh metrics cache by default") Signed-off-by: Kuniyuki Iwashima <kuniyu@amazon.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2022-07-22tcp: Fix a data-race around sysctl_tcp_nometrics_save.Kuniyuki Iwashima1-1/+1
While reading sysctl_tcp_nometrics_save, it can be changed concurrently. Thus, we need to add READ_ONCE() to its reader. Fixes: 1da177e4c3f4 ("Linux-2.6.12-rc2") Signed-off-by: Kuniyuki Iwashima <kuniyu@amazon.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2022-07-22tcp: Fix a data-race around sysctl_tcp_frto.Kuniyuki Iwashima1-1/+1
While reading sysctl_tcp_frto, it can be changed concurrently. Thus, we need to add READ_ONCE() to its reader. Fixes: 1da177e4c3f4 ("Linux-2.6.12-rc2") Signed-off-by: Kuniyuki Iwashima <kuniyu@amazon.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2022-07-22tcp: Fix a data-race around sysctl_tcp_adv_win_scale.Kuniyuki Iwashima1-1/+1
While reading sysctl_tcp_adv_win_scale, it can be changed concurrently. Thus, we need to add READ_ONCE() to its reader. Fixes: 1da177e4c3f4 ("Linux-2.6.12-rc2") Signed-off-by: Kuniyuki Iwashima <kuniyu@amazon.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2022-07-22tcp: Fix a data-race around sysctl_tcp_app_win.Kuniyuki Iwashima1-1/+1
While reading sysctl_tcp_app_win, it can be changed concurrently. Thus, we need to add READ_ONCE() to its reader. Fixes: 1da177e4c3f4 ("Linux-2.6.12-rc2") Signed-off-by: Kuniyuki Iwashima <kuniyu@amazon.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2022-07-22tcp: Fix data-races around sysctl_tcp_dsack.Kuniyuki Iwashima1-2/+2
While reading sysctl_tcp_dsack, it can be changed concurrently. Thus, we need to add READ_ONCE() to its readers. Fixes: 1da177e4c3f4 ("Linux-2.6.12-rc2") Signed-off-by: Kuniyuki Iwashima <kuniyu@amazon.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2022-07-21net: sungem_phy: Add of_node_put() for reference returned by of_get_parent()Liang He1-0/+1
In bcm5421_init(), we should call of_node_put() for the reference returned by of_get_parent() which has increased the refcount. Fixes: 3c326fe9cb7a ("[PATCH] ppc64: Add new PHY to sungem") Signed-off-by: Liang He <windhl@126.com> Link: https://lore.kernel.org/r/20220720131003.1287426-1-windhl@126.com Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2022-07-21net: pcs: xpcs: propagate xpcs_read error to xpcs_get_state_c37_sgmiiVladimir Oltean1-1/+1
While phylink_pcs_ops :: pcs_get_state does return void, xpcs_get_state() does check for a non-zero return code from xpcs_get_state_c37_sgmii() and prints that as a message to the kernel log. However, a non-zero return code from xpcs_read() is translated into "return false" (i.e. zero as int) and the I/O error is therefore not printed. Fix that. Fixes: b97b5331b8ab ("net: pcs: add C37 SGMII AN support for intel mGbE controller") Signed-off-by: Vladimir Oltean <vladimir.oltean@nxp.com> Link: https://lore.kernel.org/r/20220720112057.3504398-1-vladimir.oltean@nxp.com Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2022-07-21mmu_gather: Force tlb-flush VM_PFNMAP vmasPeter Zijlstra1-16/+17
Jann reported a race between munmap() and unmap_mapping_range(), where unmap_mapping_range() will no-op once unmap_vmas() has unlinked the VMA; however munmap() will not yet have invalidated the TLBs. Therefore unmap_mapping_range() will complete while there are still (stale) TLB entries for the specified range. Mitigate this by force flushing TLBs for VM_PFNMAP ranges. Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org> Acked-by: Will Deacon <will@kernel.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2022-07-21mmu_gather: Let there be one tlb_{start,end}_vma() implementationPeter Zijlstra1-13/+2
Now that architectures are no longer allowed to override tlb_{start,end}_vma() re-arrange code so that there is only one implementation for each of these functions. This much simplifies trying to figure out what they actually do. Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org> Acked-by: Will Deacon <will@kernel.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2022-07-21csky/tlb: Remove tlb_flush() definePeter Zijlstra1-2/+0
The previous patch removed the tlb_flush_end() implementation which used tlb_flush_range(). This means: - csky did double invalidates, a range invalidate per vma and a full invalidate at the end - csky actually has range invalidates and as such the generic tlb_flush implementation is more efficient for it. Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org> Acked-by: Will Deacon <will@kernel.org> Tested-by: Guo Ren <guoren@kernel.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2022-07-21mmu_gather: Remove per arch tlb_{start,end}_vma()Peter Zijlstra13-35/+32
Scattered across the archs are 3 basic forms of tlb_{start,end}_vma(). Provide two new MMU_GATHER_knobs to enumerate them and remove the per arch tlb_{start,end}_vma() implementations. - MMU_GATHER_NO_FLUSH_CACHE indicates the arch has flush_cache_range() but does *NOT* want to call it for each VMA. - MMU_GATHER_MERGE_VMAS indicates the arch wants to merge the invalidate across multiple VMAs if possible. With these it is possible to capture the three forms: 1) empty stubs; select MMU_GATHER_NO_FLUSH_CACHE and MMU_GATHER_MERGE_VMAS 2) start: flush_cache_range(), end: empty; select MMU_GATHER_MERGE_VMAS 3) start: flush_cache_range(), end: flush_tlb_range(); default Obviously, if the architecture does not have flush_cache_range() then it also doesn't need to select MMU_GATHER_NO_FLUSH_CACHE. Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org> Acked-by: Will Deacon <will@kernel.org> Cc: David Miller <davem@davemloft.net> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2022-07-21scripts/gdb: Fix gdb 'lx-symbols' commandKhalid Masum1-1/+1
Currently the command 'lx-symbols' in gdb exits with the error`Function "do_init_module" not defined in "kernel/module.c"`. This occurs because the file kernel/module.c was moved to kernel/module/main.c. Fix this breakage by changing the path to "kernel/module/main.c" in LoadModuleBreakpoint. Signed-off-by: Khalid Masum <khalid.masum.92@gmail.com> Acked-by: Luis Chamberlain <mcgrof@kernel.org> Fixes: cfc1d277891e ("module: Move all into module/") Reviewed-by: Douglas Anderson <dianders@chromium.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2022-07-21watch-queue: remove spurious double semicolonLinus Torvalds1-1/+1
Sedat Dilek noticed that I had an extraneous semicolon at the end of a line in the previous patch. It's harmless, but unintentional, and while compilers just treat it as an extra empty statement, for all I know some other tooling might warn about it. So clean it up before other people notice too ;) Fixes: 353f7988dd84 ("watchqueue: make sure to serialize 'wqueue->defunct' properly") Reported-by: Sedat Dilek <sedat.dilek@gmail.com> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org> Reported-by: Sedat Dilek <sedat.dilek@gmail.com>
2022-07-20watchqueue: make sure to serialize 'wqueue->defunct' properlyLinus Torvalds1-16/+37
When the pipe is closed, we mark the associated watchqueue defunct by calling watch_queue_clear(). However, while that is protected by the watchqueue lock, new watchqueue entries aren't actually added under that lock at all: they use the pipe->rd_wait.lock instead, and looking up that pipe happens without any locking. The watchqueue code uses the RCU read-side section to make sure that the wqueue entry itself hasn't disappeared, but that does not protect the pipe_info in any way. So make sure to actually hold the wqueue lock when posting watch events, properly serializing against the pipe being torn down. Reported-by: Noam Rathaus <noamr@ssd-disclosure.com> Cc: Greg KH <gregkh@linuxfoundation.org> Cc: David Howells <dhowells@redhat.com> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2022-07-20lockdown: Fix kexec lockdown bypass with ima policyEric Snowberg1-0/+4
The lockdown LSM is primarily used in conjunction with UEFI Secure Boot. This LSM may also be used on machines without UEFI. It can also be enabled when UEFI Secure Boot is disabled. One of lockdown's features is to prevent kexec from loading untrusted kernels. Lockdown can be enabled through a bootparam or after the kernel has booted through securityfs. If IMA appraisal is used with the "ima_appraise=log" boot param, lockdown can be defeated with kexec on any machine when Secure Boot is disabled or unavailable. IMA prevents setting "ima_appraise=log" from the boot param when Secure Boot is enabled, but this does not cover cases where lockdown is used without Secure Boot. To defeat lockdown, boot without Secure Boot and add ima_appraise=log to the kernel command line; then: $ echo "integrity" > /sys/kernel/security/lockdown $ echo "appraise func=KEXEC_KERNEL_CHECK appraise_type=imasig" > \ /sys/kernel/security/ima/policy $ kexec -ls unsigned-kernel Add a call to verify ima appraisal is set to "enforce" whenever lockdown is enabled. This fixes CVE-2022-21505. Cc: stable@vger.kernel.org Fixes: 29d3c1c8dfe7 ("kexec: Allow kexec_file() with appropriate IMA policy when locked down") Signed-off-by: Eric Snowberg <eric.snowberg@oracle.com> Acked-by: Mimi Zohar <zohar@linux.ibm.com> Reviewed-by: John Haxby <john.haxby@oracle.com> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2022-07-20mlxsw: spectrum_router: Fix IPv4 nexthop gateway indicationIdo Schimmel1-1/+1
mlxsw needs to distinguish nexthops with a gateway from connected nexthops in order to write the former to the adjacency table of the device. The check used to rely on the fact that nexthops with a gateway have a 'link' scope whereas connected nexthops have a 'host' scope. This is no longer correct after commit 747c14307214 ("ip: fix dflt addr selection for connected nexthop"). Fix that by instead checking the address family of the gateway IP. This is a more direct way and also consistent with the IPv6 counterpart in mlxsw_sp_rt6_is_gateway(). Cc: stable@vger.kernel.org Fixes: 747c14307214 ("ip: fix dflt addr selection for connected nexthop") Fixes: 597cfe4fc339 ("nexthop: Add support for IPv4 nexthops") Signed-off-by: Ido Schimmel <idosch@nvidia.com> Reviewed-by: Amit Cohen <amcohen@nvidia.com> Reviewed-by: Nicolas Dichtel <nicolas.dichtel@6wind.com> Reviewed-by: David Ahern <dsahern@kernel.org> Signed-off-by: David S. Miller <davem@davemloft.net>
2022-07-20net/sched: cls_api: Fix flow action initializationOz Shlomo1-6/+10
The cited commit refactored the flow action initialization sequence to use an interface method when translating tc action instances to flow offload objects. The refactored version skips the initialization of the generic flow action attributes for tc actions, such as pedit, that allocate more than one offload entry. This can cause potential issues for drivers mapping flow action ids. Populate the generic flow action fields for all the flow action entries. Fixes: c54e1d920f04 ("flow_offload: add ops to tc_action_ops for flow action setup") Signed-off-by: Oz Shlomo <ozsh@nvidia.com> Reviewed-by: Roi Dayan <roid@nvidia.com> ---- v1 -> v2: - coalese the generic flow action fields initialization to a single loop Reviewed-by: Baowen Zheng <baowen.zheng@corigine.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2022-07-20tcp: Fix data-races around sysctl_tcp_max_reordering.Kuniyuki Iwashima1-2/+2
While reading sysctl_tcp_max_reordering, it can be changed concurrently. Thus, we need to add READ_ONCE() to its readers. Fixes: dca145ffaa8d ("tcp: allow for bigger reordering level") Signed-off-by: Kuniyuki Iwashima <kuniyu@amazon.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2022-07-20tcp: Fix a data-race around sysctl_tcp_abort_on_overflow.Kuniyuki Iwashima1-1/+1
While reading sysctl_tcp_abort_on_overflow, it can be changed concurrently. Thus, we need to add READ_ONCE() to its reader. Fixes: 1da177e4c3f4 ("Linux-2.6.12-rc2") Signed-off-by: Kuniyuki Iwashima <kuniyu@amazon.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2022-07-20tcp: Fix a data-race around sysctl_tcp_rfc1337.Kuniyuki Iwashima1-1/+1
While reading sysctl_tcp_rfc1337, it can be changed concurrently. Thus, we need to add READ_ONCE() to its reader. Fixes: 1da177e4c3f4 ("Linux-2.6.12-rc2") Signed-off-by: Kuniyuki Iwashima <kuniyu@amazon.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2022-07-20tcp: Fix a data-race around sysctl_tcp_stdurg.Kuniyuki Iwashima1-1/+1
While reading sysctl_tcp_stdurg, it can be changed concurrently. Thus, we need to add READ_ONCE() to its reader. Fixes: 1da177e4c3f4 ("Linux-2.6.12-rc2") Signed-off-by: Kuniyuki Iwashima <kuniyu@amazon.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2022-07-20tcp: Fix a data-race around sysctl_tcp_retrans_collapse.Kuniyuki Iwashima1-1/+1
While reading sysctl_tcp_retrans_collapse, it can be changed concurrently. Thus, we need to add READ_ONCE() to its reader. Fixes: 1da177e4c3f4 ("Linux-2.6.12-rc2") Signed-off-by: Kuniyuki Iwashima <kuniyu@amazon.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2022-07-20tcp: Fix data-races around sysctl_tcp_slow_start_after_idle.Kuniyuki Iwashima2-3/+3
While reading sysctl_tcp_slow_start_after_idle, it can be changed concurrently. Thus, we need to add READ_ONCE() to its readers. Fixes: 35089bb203f4 ("[TCP]: Add tcp_slow_start_after_idle sysctl.") Signed-off-by: Kuniyuki Iwashima <kuniyu@amazon.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2022-07-20tcp: Fix a data-race around sysctl_tcp_thin_linear_timeouts.Kuniyuki Iwashima1-1/+1
While reading sysctl_tcp_thin_linear_timeouts, it can be changed concurrently. Thus, we need to add READ_ONCE() to its reader. Fixes: 36e31b0af587 ("net: TCP thin linear timeouts") Signed-off-by: Kuniyuki Iwashima <kuniyu@amazon.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2022-07-20tcp: Fix data-races around sysctl_tcp_recovery.Kuniyuki Iwashima2-3/+6
While reading sysctl_tcp_recovery, it can be changed concurrently. Thus, we need to add READ_ONCE() to its readers. Fixes: 4f41b1c58a32 ("tcp: use RACK to detect losses") Signed-off-by: Kuniyuki Iwashima <kuniyu@amazon.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2022-07-20tcp: Fix a data-race around sysctl_tcp_early_retrans.Kuniyuki Iwashima1-1/+1
While reading sysctl_tcp_early_retrans, it can be changed concurrently. Thus, we need to add READ_ONCE() to its reader. Fixes: eed530b6c676 ("tcp: early retransmit") Signed-off-by: Kuniyuki Iwashima <kuniyu@amazon.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2022-07-20tcp: Fix data-races around sysctl knobs related to SYN option.Kuniyuki Iwashima5-16/+16
While reading these knobs, they can be changed concurrently. Thus, we need to add READ_ONCE() to their readers. - tcp_sack - tcp_window_scaling - tcp_timestamps Fixes: 1da177e4c3f4 ("Linux-2.6.12-rc2") Signed-off-by: Kuniyuki Iwashima <kuniyu@amazon.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2022-07-20udp: Fix a data-race around sysctl_udp_l3mdev_accept.Kuniyuki Iwashima1-1/+1
While reading sysctl_udp_l3mdev_accept, it can be changed concurrently. Thus, we need to add READ_ONCE() to its reader. Fixes: 63a6fff353d0 ("net: Avoid receiving packets with an l3mdev on unbound UDP sockets") Signed-off-by: Kuniyuki Iwashima <kuniyu@amazon.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2022-07-20ip: Fix data-races around sysctl_ip_prot_sock.Kuniyuki Iwashima2-4/+4
sysctl_ip_prot_sock is accessed concurrently, and there is always a chance of data-race. So, all readers and writers need some basic protection to avoid load/store-tearing. Fixes: 4548b683b781 ("Introduce a sysctl that modifies the value of PROT_SOCK.") Signed-off-by: Kuniyuki Iwashima <kuniyu@amazon.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2022-07-20ipv4: Fix data-races around sysctl_fib_multipath_hash_fields.Kuniyuki Iwashima2-4/+4
While reading sysctl_fib_multipath_hash_fields, it can be changed concurrently. Thus, we need to add READ_ONCE() to its readers. Fixes: ce5c9c20d364 ("ipv4: Add a sysctl to control multipath hash fields") Signed-off-by: Kuniyuki Iwashima <kuniyu@amazon.com> Reviewed-by: Ido Schimmel <idosch@nvidia.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2022-07-20ipv4: Fix data-races around sysctl_fib_multipath_hash_policy.Kuniyuki Iwashima2-2/+2
While reading sysctl_fib_multipath_hash_policy, it can be changed concurrently. Thus, we need to add READ_ONCE() to its readers. Fixes: bf4e0a3db97e ("net: ipv4: add support for ECMP hash policy choice") Signed-off-by: Kuniyuki Iwashima <kuniyu@amazon.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2022-07-20ipv4: Fix a data-race around sysctl_fib_multipath_use_neigh.Kuniyuki Iwashima1-1/+1
While reading sysctl_fib_multipath_use_neigh, it can be changed concurrently. Thus, we need to add READ_ONCE() to its reader. Fixes: a6db4494d218 ("net: ipv4: Consider failed nexthops in multipath routes") Signed-off-by: Kuniyuki Iwashima <kuniyu@amazon.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2022-07-20can: rcar_canfd: Add missing of_node_put() in rcar_canfd_probe()Liang He1-0/+1
We should use of_node_put() for the reference returned by of_get_child_by_name() which has increased the refcount. Fixes: 45721c406dcf ("can: rcar_canfd: Add support for r8a779a0 SoC") Link: https://lore.kernel.org/all/20220712095623.364287-1-windhl@126.com Signed-off-by: Liang He <windhl@126.com> Signed-off-by: Marc Kleine-Budde <mkl@pengutronix.de>
2022-07-20can: mcp251xfd: fix detection of mcp251863Marc Kleine-Budde1-5/+13
In commit c6f2a617a0a8 ("can: mcp251xfd: add support for mcp251863") support for the mcp251863 was added. However it was not taken into account that the auto detection of the chip model cannot distinguish between mcp2518fd and mcp251863 and would lead to a warning message if the firmware specifies a mcp251863. Fix auto detection: If a mcp2518fd compatible chip is found, keep the mcp251863 if specified by firmware, use mcp2518fd instead. Link: https://lore.kernel.org/all/20220706064835.1848864-1-mkl@pengutronix.de Fixes: c6f2a617a0a8 ("can: mcp251xfd: add support for mcp251863") Signed-off-by: Marc Kleine-Budde <mkl@pengutronix.de>
2022-07-19Documentation: fix udp_wmem_min in ip-sysctl.rstXin Long1-5/+1
UDP doesn't support tx memory accounting, and sysctl udp_wmem_min is not really used anywhere. So we should fix the description in ip-sysctl.rst accordingly. Fixes: 95766fff6b9a ("[UDP]: Add memory accounting.") Signed-off-by: Xin Long <lucien.xin@gmail.com> Link: https://lore.kernel.org/r/c880a963d9b1fb5f442ae3c9e4dfa70d45296a16.1658167019.git.lucien.xin@gmail.com Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2022-07-19net: ethernet: mtk_ppe: fix possible NULL pointer dereference in mtk_flow_get_wdma_infoLorenzo Bianconi1-0/+3
odev pointer can be NULL in mtk_flow_offload_replace routine according to the flower action rules. Fix possible NULL pointer dereference in mtk_flow_get_wdma_info. Fixes: a333215e10cb5 ("net: ethernet: mtk_eth_soc: implement flow offloading to WED devices") Signed-off-by: Lorenzo Bianconi <lorenzo@kernel.org> Link: https://lore.kernel.org/r/4e1685bc4976e21e364055f6bee86261f8f9ee93.1658137753.git.lorenzo@kernel.org Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2022-07-19r8152: fix a WOL issueHayes Wang1-2/+14
This fixes that the platform is waked by an unexpected packet. The size and range of FIFO is different when the device enters S3 state, so it is necessary to correct some settings when suspending. Regardless of jumbo frame, set RMS to 1522 and MTPS to MTPS_DEFAULT. Besides, enable MCU_BORW_EN to update the method of calculating the pointer of data. Then, the hardware could get the correct data. Fixes: 195aae321c82 ("r8152: support new chips") Signed-off-by: Hayes Wang <hayeswang@realtek.com> Link: https://lore.kernel.org/r/20220718082120.10957-391-nic_swsd@realtek.com Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2022-07-19amt: do not use amt->nr_tunnels outside of lockTaehee Yoo1-3/+6
amt->nr_tunnels is protected by amt->lock. But, amt_request_handler() has been using this variable without the amt->lock. So, it expands context of amt->lock in the amt_request_handler() to protect amt->nr_tunnels variable. Fixes: cbc21dc1cfe9 ("amt: add data plane of amt interface") Signed-off-by: Taehee Yoo <ap420073@gmail.com> Signed-off-by: Paolo Abeni <pabeni@redhat.com>
2022-07-19amt: drop unexpected multicast dataTaehee Yoo1-0/+3
AMT gateway interface should not receive unexpected multicast data. Multicast data message type should be received after sending an update message, which means all establishment between gateway and relay is finished. So, amt_multicast_data_handler() checks amt->status. Fixes: cbc21dc1cfe9 ("amt: add data plane of amt interface") Signed-off-by: Taehee Yoo <ap420073@gmail.com> Signed-off-by: Paolo Abeni <pabeni@redhat.com>
2022-07-19amt: drop unexpected query messageTaehee Yoo1-1/+13
AMT gateway interface should not receive unexpected query messages. In order to drop unexpected query messages, it checks nonce. And it also checks ready4 and ready6 variables to drop duplicated messages. Fixes: cbc21dc1cfe9 ("amt: add data plane of amt interface") Signed-off-by: Taehee Yoo <ap420073@gmail.com> Signed-off-by: Paolo Abeni <pabeni@redhat.com>
2022-07-19amt: drop unexpected advertisement messageTaehee Yoo1-0/+5
AMT gateway interface should not receive unexpected advertisement messages. In order to drop these packets, it should check nonce and amt->status. Fixes: cbc21dc1cfe9 ("amt: add data plane of amt interface") Signed-off-by: Taehee Yoo <ap420073@gmail.com> Signed-off-by: Paolo Abeni <pabeni@redhat.com>
2022-07-19amt: add missing regeneration nonce logic in request logicTaehee Yoo1-0/+4
When AMT gateway starts sending a new request message, it should regenerate the nonce variable. Fixes: cbc21dc1cfe9 ("amt: add data plane of amt interface") Signed-off-by: Taehee Yoo <ap420073@gmail.com> Signed-off-by: Paolo Abeni <pabeni@redhat.com>
2022-07-19amt: use READ_ONCE() in amt moduleTaehee Yoo1-7/+8
There are some data races in the amt module. amt->ready4, amt->ready6, and amt->status can be accessed concurrently without locks. So, it uses READ_ONCE() and WRITE_ONCE(). Fixes: cbc21dc1cfe9 ("amt: add data plane of amt interface") Signed-off-by: Taehee Yoo <ap420073@gmail.com> Signed-off-by: Paolo Abeni <pabeni@redhat.com>
2022-07-19amt: remove unnecessary locksTaehee Yoo1-27/+5
By the previous patch, amt gateway handlers are changed to worked by a single thread. So, most locks for gateway are not needed. So, it removes. Fixes: cbc21dc1cfe9 ("amt: add data plane of amt interface") Signed-off-by: Taehee Yoo <ap420073@gmail.com> Signed-off-by: Paolo Abeni <pabeni@redhat.com>
2022-07-19amt: use workqueue for gateway side message handlingTaehee Yoo2-15/+164
There are some synchronization issues(amt->status, amt->req_cnt, etc) if the interface is in gateway mode because gateway message handlers are processed concurrently. This applies a work queue for processing these messages instead of expanding the locking context. So, the purposes of this patch are to fix exist race conditions and to make gateway to be able to validate a gateway status more correctly. When the AMT gateway interface is created, it tries to establish to relay. The establishment step looks stateless, but it should be managed well. In order to handle messages in the gateway, it saves the current status(i.e. AMT_STATUS_XXX). This patch makes gateway code to be worked with a single thread. Now, all messages except the multicast are triggered(received or delay expired), and these messages will be stored in the event queue(amt->events). Then, the single worker processes stored messages asynchronously one by one. The multicast data message type will be still processed immediately. Now, amt->lock is only needed to access the event queue(amt->events) if an interface is the gateway mode. Fixes: cbc21dc1cfe9 ("amt: add data plane of amt interface") Signed-off-by: Taehee Yoo <ap420073@gmail.com> Signed-off-by: Paolo Abeni <pabeni@redhat.com>
2022-07-19net: dsa: vitesse-vsc73xx: silent spi_device_id warningsOleksij Rempel1-0/+10
Add spi_device_id entries to silent SPI warnings. Fixes: 5fa6863ba692 ("spi: Check we have a spi_device_id for each DT compatible") Signed-off-by: Oleksij Rempel <o.rempel@pengutronix.de> Reviewed-by: Vladimir Oltean <olteanv@gmail.com> Link: https://lore.kernel.org/r/20220717135831.2492844-2-o.rempel@pengutronix.de Signed-off-by: Paolo Abeni <pabeni@redhat.com>
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