- 05 11月, 2019 32 次提交
-
-
由 Oleksij Rempel 提交于
can: j1939: transport: j1939_session_fresh_new(): make sure EOMA is send with the total message size set We were sending malformed EOMA messageswith total message size set to 0. This patch fixes the bug. Reported-by: https://github.com/linux-can/can-utils/issues/159Signed-off-by: NOleksij Rempel <o.rempel@pengutronix.de> Acked-by: NKurt Van Dijck <dev.kurt@vandijck-laurijssen.be> Signed-off-by: NMarc Kleine-Budde <mkl@pengutronix.de>
-
由 Oleksij Rempel 提交于
Filters array is coped from user space and linked to the j1939 socket. On socket release this memory was not freed. Fixes: 9d71dd0c ("can: add support of SAE J1939 protocol") Signed-off-by: NOleksij Rempel <o.rempel@pengutronix.de> Signed-off-by: NMarc Kleine-Budde <mkl@pengutronix.de>
-
由 Colin Ian King 提交于
Currently the error return paths do not free skb and this results in a memory leak. Fix this by freeing them before the return. Addresses-Coverity: ("Resource leak") Fixes: 9d71dd0c ("can: add support of SAE J1939 protocol") Signed-off-by: NColin Ian King <colin.king@canonical.com> Acked-by: NOleksij Rempel <o.rempel@pengutronix.de> Signed-off-by: NMarc Kleine-Budde <mkl@pengutronix.de>
-
由 Jeroen Hofstee 提交于
While the ti_hecc has interrupts to report when the error counters increase to a certain level and which change state it doesn't handle the case that the error counters go down again, so the reported state can actually be wrong. Since there is no interrupt for that, do update state based on the error counters, when the state is not error active and goes down again. Signed-off-by: NJeroen Hofstee <jhofstee@victronenergy.com> Signed-off-by: NMarc Kleine-Budde <mkl@pengutronix.de>
-
由 Jeroen Hofstee 提交于
The HECC_CANES register handles the flags specially, it only updates the flags after a one is written to them. Since the interrupt for frame errors is not enabled an old error can hence been seen when a state interrupt arrives. For example if the device is not connected to the CAN-bus the error warning interrupt will have HECC_CANES indicating there is no ack. The error passive interrupt thereafter will have HECC_CANES flagging that there is a warning level. And if thereafter there is a message successfully send HECC_CANES points to an error passive event, while in reality it became error warning again. In summary, the state is not always reported correctly. So handle the state changes and frame errors separately. The state changes are now based on the interrupt flags and handled directly when they occur. The reporting of the frame errors is still done as before, as a side effect of another interrupt. note: the hecc_clear_bit will do a read, modify, write. So it will not only clear the bit, but also reset all other bits being set as a side affect, hence it is replaced with only clearing the flags. note: The HECC_CANMC_CCR is no longer cleared in the state change interrupt, it is completely unrelated. And use net_ratelimit to make checkpatch happy. Signed-off-by: NJeroen Hofstee <jhofstee@victronenergy.com> Signed-off-by: NMarc Kleine-Budde <mkl@pengutronix.de>
-
由 Jeroen Hofstee 提交于
When the rx FIFO overflows the ti_hecc would silently drop them since the overwrite protection is enabled for all mailboxes. So disable it for the lowest priority mailbox and return a proper error value when receive message lost is set. Drop the message itself in that case, since it might be partially updated. Signed-off-by: NJeroen Hofstee <jhofstee@victronenergy.com> Acked-by: NJeroen Hofstee <jhofstee@victronenergy.com> Signed-off-by: NMarc Kleine-Budde <mkl@pengutronix.de>
-
由 Jeroen Hofstee 提交于
Release the mailbox after reading it, so it can be reused a bit earlier. Since "can: rx-offload: continue on error" all pending message bits are cleared directly, so remove clearing them in ti_hecc. Suggested-by: NMarc Kleine-Budde <mkl@pengutronix.de> Signed-off-by: NJeroen Hofstee <jhofstee@victronenergy.com> Signed-off-by: NMarc Kleine-Budde <mkl@pengutronix.de>
-
由 Jeroen Hofstee 提交于
The HECC_CANMIM is set in the xmit path and cleared in the interrupt. Since this is done with a read, modify, write action the register might end up with some more MIM enabled then intended, since it is not protected. That doesn't matter at all, since the tx interrupt disables the mailbox with HECC_CANME (while holding a spinlock). So lets just always keep MIM set. While at it, since the mailbox direction never changes, don't set it every time a message is send, ti_hecc_reset() already sets them to tx. Signed-off-by: NJeroen Hofstee <jhofstee@victronenergy.com> Signed-off-by: NMarc Kleine-Budde <mkl@pengutronix.de>
-
由 Jeroen Hofstee 提交于
When the interface goes down, the CPK should no longer take an active part in the CAN-bus communication, like sending acks and error frames. So enable configuration mode in ti_hecc_stop, so the CPK is no longer active. When a transceiver switch is present the acks and errors don't make it to the bus, but disabling the CPK then does prevent oddities, like ti_hecc_reset() failing, since the CPK can become bus-off and starts counting the 11 bit recessive bits, which seems to block the reset. It can also cause invalid interrupts and disrupt the CAN-bus, since transmission can be stopped in the middle of a message, by disabling the tranceiver while the CPK is sending. Since the CPK is disabled after normal power on, it is typically only seen when the interface is restarted. Signed-off-by: NJeroen Hofstee <jhofstee@victronenergy.com> Signed-off-by: NMarc Kleine-Budde <mkl@pengutronix.de>
-
由 Marc Kleine-Budde 提交于
can: ti_hecc: ti_hecc_error(): increase error counters if skb enqueueing via can_rx_offload_queue_sorted() fails The call to can_rx_offload_queue_sorted() may fail and return an error (in the current implementation due to resource shortage). The passed skb is consumed. This patch adds incrementing of the appropriate error counters to let the device statistics reflect that there's a problem. Signed-off-by: NMarc Kleine-Budde <mkl@pengutronix.de>
-
由 Marc Kleine-Budde 提交于
The call to can_rx_offload_queue_sorted() may fail and return an error (in the current implementation due to resource shortage). The passed skb is consumed. This patch adds incrementing of the appropriate error counters to let the device statistics reflect that there's a problem. Reported-by: NMartin Hundebøll <martin@geanix.com> Signed-off-by: NMarc Kleine-Budde <mkl@pengutronix.de>
-
由 Marc Kleine-Budde 提交于
In case of a resource shortage, i.e. the rx_offload queue will overflow or a skb fails to be allocated (due to OOM), can_rx_offload_offload_one() will call mailbox_read() to discard the mailbox and return an ERR_PTR. If the hardware FIFO is empty can_rx_offload_offload_one() will return NULL. In case a CAN frame was read from the hardware, can_rx_offload_offload_one() returns the skb containing it. Without this patch can_rx_offload_irq_offload_fifo() bails out if no skb returned, regardless of the reason. Similar to can_rx_offload_irq_offload_timestamp() in case of a resource shortage the whole FIFO should be discarded, to avoid an IRQ storm and give the system some time to recover. However if the FIFO is empty the loop can be left. With this patch the loop is left in case of empty FIFO, but not on errors. Signed-off-by: NMarc Kleine-Budde <mkl@pengutronix.de>
-
由 Jeroen Hofstee 提交于
In case of a resource shortage, i.e. the rx_offload queue will overflow or a skb fails to be allocated (due to OOM), can_rx_offload_offload_one() will call mailbox_read() to discard the mailbox and return an ERR_PTR. However can_rx_offload_irq_offload_timestamp() bails out in the error case. In case of a resource shortage all mailboxes should be discarded, to avoid an IRQ storm and give the system some time to recover. Since can_rx_offload_irq_offload_timestamp() is typically called from a while loop, all message will eventually be discarded. So let's continue on error instead to discard them directly. Signed-off-by: NJeroen Hofstee <jhofstee@victronenergy.com> Signed-off-by: NMarc Kleine-Budde <mkl@pengutronix.de>
-
由 Marc Kleine-Budde 提交于
can: rx-offload: can_rx_offload_offload_one(): use ERR_PTR() to propagate error value in case of errors Before this patch can_rx_offload_offload_one() returns a pointer to a skb containing the read CAN frame or a NULL pointer. However the meaning of the NULL pointer is ambiguous, it can either mean the requested mailbox is empty or there was an error. This patch fixes this situation by returning: - pointer to skb on success - NULL pointer if mailbox is empty - ERR_PTR() in case of an error All users of can_rx_offload_offload_one() have been adopted, no functional change intended. Signed-off-by: NMarc Kleine-Budde <mkl@pengutronix.de>
-
由 Marc Kleine-Budde 提交于
If the rx-offload skb_queue is full or the skb allocation fails (due to OOM), the mailbox contents is discarded. This patch adds the incrementing of the rx_fifo_errors statistics counter. Signed-off-by: NMarc Kleine-Budde <mkl@pengutronix.de>
-
由 Marc Kleine-Budde 提交于
can: rx-offload: can_rx_offload_offload_one(): do not increase the skb_queue beyond skb_queue_len_max The skb_queue is a linked list, holding the skb to be processed in the next NAPI call. Without this patch, the queue length in can_rx_offload_offload_one() is limited to skb_queue_len_max + 1. As the skb_queue is a linked list, no array or other resources are accessed out-of-bound, however this behaviour is counterintuitive. This patch limits the rx-offload skb_queue length to skb_queue_len_max. Fixes: d254586c ("can: rx-offload: Add support for HW fifo based irq offloading") Signed-off-by: NMarc Kleine-Budde <mkl@pengutronix.de>
-
由 Marc Kleine-Budde 提交于
If the rx-offload skb_queue is full can_rx_offload_queue_tail() will not queue the skb and return with an error. This patch frees the skb in case of a full queue, which brings can_rx_offload_queue_tail() in line with the can_rx_offload_queue_sorted() function, which has been adjusted in the previous patch. The return value is adjusted to -ENOBUFS to better reflect the actual problem. The device stats handling is left to the caller. Fixes: d254586c ("can: rx-offload: Add support for HW fifo based irq offloading") Reported-by: NKurt Van Dijck <dev.kurt@vandijck-laurijssen.be> Signed-off-by: NMarc Kleine-Budde <mkl@pengutronix.de>
-
由 Marc Kleine-Budde 提交于
If the rx-offload skb_queue is full can_rx_offload_queue_sorted() will not queue the skb and return with an error. None of the callers of this function, issue a kfree_skb() to free the not queued skb. This results in a memory leak. This patch fixes the problem by freeing the skb in case of a full queue. The return value is adjusted to -ENOBUFS to better reflect the actual problem. The device stats handling is left to the callers, as this function might be used in both the rx and tx path. Fixes: 55059f2b ("can: rx-offload: introduce can_rx_offload_get_echo_skb() and can_rx_offload_queue_sorted() functions") Cc: linux-stable <stable@vger.kernel.org> Cc: Martin Hundebøll <martin@geanix.com> Reported-by: NMartin Hundebøll <martin@geanix.com> Signed-off-by: NMarc Kleine-Budde <mkl@pengutronix.de>
-
AXI CANIP doesn't support tx fifo empty interrupt feature(TXFEMP), update the flags filed in the driver for AXI CAN case accordingly. Fixes: 3281b380 ("can: xilinx_can: Fix flags field initialization for axi can and canps") Reported-by: NAnssi Hannula <anssi.hannula@bitwise.fi> Signed-off-by: NAppana Durga Kedareswara rao <appana.durga.rao@xilinx.com> Signed-off-by: NMarc Kleine-Budde <mkl@pengutronix.de>
-
由 Jeroen Hofstee 提交于
While the state is updated when the error counters increase and decrease, there is no event when the bus recovers and the error counters decrease again. So add that event as well. Change the state going downward to be ERROR_PASSIVE -> ERROR_WARNING -> ERROR_ACTIVE instead of directly to ERROR_ACTIVE again. Signed-off-by: NJeroen Hofstee <jhofstee@victronenergy.com> Acked-by: NKurt Van Dijck <dev.kurt@vandijck-laurijssen.be> Tested-by: NKurt Van Dijck <dev.kurt@vandijck-laurijssen.be> Signed-off-by: NMarc Kleine-Budde <mkl@pengutronix.de>
-
由 Jeroen Hofstee 提交于
When the CAN interface is closed it the hardwre is put in power down mode, but does not reset the error counters / state. Reset the D_CAN on open, so the reported state and the actual state match. According to [1], the C_CAN module doesn't have the software reset. [1] http://www.bosch-semiconductors.com/media/ip_modules/pdf_2/c_can_fd8/users_manual_c_can_fd8_r210_1.pdfSigned-off-by: NJeroen Hofstee <jhofstee@victronenergy.com> Signed-off-by: NMarc Kleine-Budde <mkl@pengutronix.de>
-
由 Kurt Van Dijck 提交于
When the status register is read without the status IRQ pending, the chip may not raise the interrupt line for an upcoming status interrupt and the driver may miss a status interrupt. It is critical that the BUSOFF status interrupt is forwarded to the higher layers, since no more interrupts will follow without intervention. Thanks to Wolfgang and Joe for bringing up the first idea. Signed-off-by: NKurt Van Dijck <dev.kurt@vandijck-laurijssen.be> Cc: Wolfgang Grandegger <wg@grandegger.com> Cc: Joe Burmeister <joe.burmeister@devtank.co.uk> Fixes: fa39b54c ("can: c_can: Get rid of pointless interrupts") Cc: linux-stable <stable@vger.kernel.org> Signed-off-by: NMarc Kleine-Budde <mkl@pengutronix.de>
-
由 Jeroen Hofstee 提交于
While the state changes are reported when the error counters increase and decrease, there is no event when the bus recovers and the error counters decrease again. So add those as well. Change the state going downward to be ERROR_PASSIVE -> ERROR_WARNING -> ERROR_ACTIVE instead of directly to ERROR_ACTIVE again. Signed-off-by: NJeroen Hofstee <jhofstee@victronenergy.com> Cc: Stephane Grosjean <s.grosjean@peak-system.com> Signed-off-by: NMarc Kleine-Budde <mkl@pengutronix.de>
-
由 Johan Hovold 提交于
Fix a small slab info leak due to a failure to clear the command buffer at allocation. The first 16 bytes of the command buffer are always sent to the device in pcan_usb_send_cmd() even though only the first two may have been initialised in case no argument payload is provided (e.g. when waiting for a response). Fixes: bb478555 ("can: usb: PEAK-System Technik USB adapters driver core") Cc: stable <stable@vger.kernel.org> # 3.4 Reported-by: syzbot+863724e7128e14b26732@syzkaller.appspotmail.com Signed-off-by: NJohan Hovold <johan@kernel.org> Signed-off-by: NMarc Kleine-Budde <mkl@pengutronix.de>
-
由 Stephane Grosjean 提交于
When decoding a buffer received from PCAN-USB, the first timestamp read in a packet is a 16-bit coded time base, and the next ones are an 8-bit offset to this base, regardless of the type of packet read. This patch corrects a potential loss of synchronization by using a timestamp index read from the buffer, rather than an index of received data packets, to determine on the sizeof the timestamp to be read from the packet being decoded. Signed-off-by: NStephane Grosjean <s.grosjean@peak-system.com> Fixes: 46be265d ("can: usb: PEAK-System Technik PCAN-USB specific part") Cc: linux-stable <stable@vger.kernel.org> Signed-off-by: NMarc Kleine-Budde <mkl@pengutronix.de>
-
由 Joakim Zhang 提交于
The ECC (memory error detection and correction) mechanism can be activated or not, controlled by the ECCDIS bit in CAN_MECR. When disabled, updates on indications and reporting registers are stopped. So if want to disable ECC completely, had better assert ECCDIS bit, not just mask the related interrupts. Fixes: cdce8448 ("can: flexcan: add vf610 support for FlexCAN") Signed-off-by: NJoakim Zhang <qiangqing.zhang@nxp.com> Cc: linux-stable <stable@vger.kernel.org> Signed-off-by: NMarc Kleine-Budde <mkl@pengutronix.de>
-
由 Johan Hovold 提交于
The driver was accessing its driver data after having freed it. Fixes: 0024d8ad ("can: usb_8dev: Add support for USB2CAN interface from 8 devices") Cc: stable <stable@vger.kernel.org> # 3.9 Cc: Bernd Krumboeck <b.krumboeck@gmail.com> Cc: Wolfgang Grandegger <wg@grandegger.com> Signed-off-by: NJohan Hovold <johan@kernel.org> Signed-off-by: NMarc Kleine-Budde <mkl@pengutronix.de>
-
由 Johan Hovold 提交于
The driver was accessing its driver data after having freed it. Fixes: 51f3baad ("can: mcba_usb: Add support for Microchip CAN BUS Analyzer") Cc: stable <stable@vger.kernel.org> # 4.12 Cc: Remigiusz Kołłątaj <remigiusz.kollataj@mobica.com> Reported-by: syzbot+e29b17e5042bbc56fae9@syzkaller.appspotmail.com Signed-off-by: NJohan Hovold <johan@kernel.org> Signed-off-by: NMarc Kleine-Budde <mkl@pengutronix.de>
-
由 Navid Emamdoost 提交于
In gs_can_open() if usb_submit_urb() fails the allocated urb should be released. Fixes: d08e973a ("can: gs_usb: Added support for the GS_USB CAN devices") Cc: linux-stable <stable@vger.kernel.org> Signed-off-by: NNavid Emamdoost <navid.emamdoost@gmail.com> Signed-off-by: NMarc Kleine-Budde <mkl@pengutronix.de>
-
由 Wen Yang 提交于
of_node_put() needs to be called when the device node which is got from of_get_child_by_name() finished using. Fixes: 2290aefa ("can: dev: Add support for limiting configured bitrate") Cc: Franklin S Cooper Jr <fcooper@ti.com> Signed-off-by: NWen Yang <wenyang@linux.alibaba.com> Cc: linux-stable <stable@vger.kernel.org> Signed-off-by: NMarc Kleine-Budde <mkl@pengutronix.de>
-
由 Eric Dumazet 提交于
For some reason I missed the case of DCCP passive flows in my previous patch. Fixes: a904a069 ("inet: stop leaking jiffies on the wire") Signed-off-by: NEric Dumazet <edumazet@google.com> Reported-by: NThiemo Nagel <tnagel@google.com> Signed-off-by: NDavid S. Miller <davem@davemloft.net>
-
由 Chuhong Yuan 提交于
This driver forgets to disable and unprepare clks when remove. Add calls to clk_disable_unprepare to fix it. Signed-off-by: NChuhong Yuan <hslester96@gmail.com> Signed-off-by: NDavid S. Miller <davem@davemloft.net>
-
- 02 11月, 2019 8 次提交
-
-
git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net由 Linus Torvalds 提交于
Pull networking fixes from David Miller: 1) Fix free/alloc races in batmanadv, from Sven Eckelmann. 2) Several leaks and other fixes in kTLS support of mlx5 driver, from Tariq Toukan. 3) BPF devmap_hash cost calculation can overflow on 32-bit, from Toke Høiland-Jørgensen. 4) Add an r8152 device ID, from Kazutoshi Noguchi. 5) Missing include in ipv6's addrconf.c, from Ben Dooks. 6) Use siphash in flow dissector, from Eric Dumazet. Attackers can easily infer the 32-bit secret otherwise etc. 7) Several netdevice nesting depth fixes from Taehee Yoo. 8) Fix several KCSAN reported errors, from Eric Dumazet. For example, when doing lockless skb_queue_empty() checks, and accessing sk_napi_id/sk_incoming_cpu lockless as well. 9) Fix jumbo packet handling in RXRPC, from David Howells. 10) Bump SOMAXCONN and tcp_max_syn_backlog values, from Eric Dumazet. 11) Fix DMA synchronization in gve driver, from Yangchun Fu. 12) Several bpf offload fixes, from Jakub Kicinski. 13) Fix sk_page_frag() recursion during memory reclaim, from Tejun Heo. 14) Fix ping latency during high traffic rates in hisilicon driver, from Jiangfent Xiao. * git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net: (146 commits) net: fix installing orphaned programs net: cls_bpf: fix NULL deref on offload filter removal selftests: bpf: Skip write only files in debugfs selftests: net: reuseport_dualstack: fix uninitalized parameter r8169: fix wrong PHY ID issue with RTL8168dp net: dsa: bcm_sf2: Fix IMP setup for port different than 8 net: phylink: Fix phylink_dbg() macro gve: Fixes DMA synchronization. inet: stop leaking jiffies on the wire ixgbe: Remove duplicate clear_bit() call Documentation: networking: device drivers: Remove stray asterisks e1000: fix memory leaks i40e: Fix receive buffer starvation for AF_XDP igb: Fix constant media auto sense switching when no cable is connected net: ethernet: arc: add the missed clk_disable_unprepare igb: Enable media autosense for the i350. igb/igc: Don't warn on fatal read failures when the device is removed tcp: increase tcp_max_syn_backlog max value net: increase SOMAXCONN to 4096 netdevsim: Fix use-after-free during device dismantle ...
-
git://git.linux-nfs.org/projects/anna/linux-nfs由 Linus Torvalds 提交于
Pull NFS client bugfixes from Anna Schumaker: "This contains two delegation fixes (with the RCU lock leak fix marked for stable), and three patches to fix destroying the the sunrpc back channel. Stable bugfixes: - Fix an RCU lock leak in nfs4_refresh_delegation_stateid() Other fixes: - The TCP back channel mustn't disappear while requests are outstanding - The RDMA back channel mustn't disappear while requests are outstanding - Destroy the back channel when we destroy the host transport - Don't allow a cached open with a revoked delegation" * tag 'nfs-for-5.4-3' of git://git.linux-nfs.org/projects/anna/linux-nfs: NFS: Fix an RCU lock leak in nfs4_refresh_delegation_stateid() NFSv4: Don't allow a cached open with a revoked delegation SUNRPC: Destroy the back channel when we destroy the host transport SUNRPC: The RDMA back channel mustn't disappear while requests are outstanding SUNRPC: The TCP back channel mustn't disappear while requests are outstanding
-
git://git.kernel.dk/linux-block由 Linus Torvalds 提交于
Pull block fixes from Jens Axboe: - Two small nvme fixes, one is a fabrics connection fix, the other one a cleanup made possible by that fix (Anton, via Keith) - Fix requeue handling in umb ubd (Anton) - Fix spin_lock_irq() nesting in blk-iocost (Dan) - Three small io_uring fixes: - Install io_uring fd after done with ctx (me) - Clear ->result before every poll issue (me) - Fix leak of shadow request on error (Pavel) * tag 'for-linus-20191101' of git://git.kernel.dk/linux-block: iocost: don't nest spin_lock_irq in ioc_weight_write() io_uring: ensure we clear io_kiocb->result before each issue um-ubd: Entrust re-queue to the upper layers nvme-multipath: remove unused groups_only mode in ana log nvme-multipath: fix possible io hang after ctrl reconnect io_uring: don't touch ctx in setup after ring fd install io_uring: Fix leaked shadow_req
-
git://git.kernel.org/pub/scm/linux/kernel/git/riscv/linux由 Linus Torvalds 提交于
Pull RISC-V fixes from Paul Walmsley: "One fix for PCIe users: - Fix legacy PCI I/O port access emulation One set of cleanups: - Resolve most of the warnings generated by sparse across arch/riscv. No functional changes And one MAINTAINERS update: - Update Palmer's E-mail address" * tag 'riscv/for-v5.4-rc6' of git://git.kernel.org/pub/scm/linux/kernel/git/riscv/linux: MAINTAINERS: Change to my personal email address RISC-V: Add PCIe I/O BAR memory mapping riscv: for C functions called only from assembly, mark with __visible riscv: fp: add missing __user pointer annotations riscv: add missing header file includes riscv: mark some code and data as file-static riscv: init: merge split string literals in preprocessor directive riscv: add prototypes for assembly language functions from head.S
-
git://git.kernel.org/pub/scm/linux/kernel/git/deller/parisc-linux由 Linus Torvalds 提交于
Pull parisc fix from Helge Deller: "Fix a parisc kernel crash with ftrace functions when compiled without frame pointers" * 'parisc-5.4-3' of git://git.kernel.org/pub/scm/linux/kernel/git/deller/parisc-linux: parisc: fix frame pointer in ftrace_regs_caller()
-
由 David S. Miller 提交于
Jakub Kicinski says: ==================== fix BPF offload related bugs test_offload.py catches some recently added bugs. First of a bug in test_offload.py itself after recent changes to netdevsim is fixed. Second patch fixes a bug in cls_bpf, and last one addresses a problem with the recently added XDP installation optimization. ==================== Signed-off-by: NDavid S. Miller <davem@davemloft.net>
-
由 Jakub Kicinski 提交于
When netdevice with offloaded BPF programs is destroyed the programs are orphaned and removed from the program IDA - their IDs get released (the programs may remain accessible via existing open file descriptors and pinned files). After IDs are released they are set to 0. This confuses dev_change_xdp_fd() because it compares the __dev_xdp_query() result where 0 means no program with prog->aux->id where 0 means orphaned. dev_change_xdp_fd() would have incorrectly returned success even though it had not installed the program. Since drivers already catch this case via bpf_offload_dev_match() let them handle this case. The error message drivers produce in this case ("program loaded for a different device") is in fact correct as the orphaned program must had to be loaded for a different device. Fixes: c14a9f63 ("net: Don't call XDP_SETUP_PROG when nothing is changed") Signed-off-by: NJakub Kicinski <jakub.kicinski@netronome.com> Signed-off-by: NDavid S. Miller <davem@davemloft.net>
-
由 Jakub Kicinski 提交于
Commit 40119211 ("net: sched: refactor block offloads counter usage") missed the fact that either new prog or old prog may be NULL. Fixes: 40119211 ("net: sched: refactor block offloads counter usage") Signed-off-by: NJakub Kicinski <jakub.kicinski@netronome.com> Signed-off-by: NDavid S. Miller <davem@davemloft.net>
-