- 02 Aug, 2020 27 commits
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Christophe JAILLET authored
The wrappers in include/linux/pci-dma-compat.h should go away. The patch has been generated with the coccinelle script below and has been hand modified to replace GFP_ with a correct flag. It has been compile tested. When memory is allocated in 'ipw2100_msg_allocate()' (ipw2100.c), GFP_KERNEL can be used because it is called from the probe function. The call chain is: ipw2100_pci_init_one (the probe function) --> ipw2100_queues_allocate --> ipw2100_msg_allocate Moreover, 'ipw2100_msg_allocate()' already uses GFP_KERNEL for some other memory allocations. When memory is allocated in 'status_queue_allocate()' (ipw2100.c), GFP_KERNEL can be used because it is called from the probe function. The call chain is: ipw2100_pci_init_one (the probe function) --> ipw2100_queues_allocate --> ipw2100_rx_allocate --> status_queue_allocate Moreover, 'ipw2100_rx_allocate()' already uses GFP_KERNEL for some other memory allocations. When memory is allocated in 'bd_queue_allocate()' (ipw2100.c), GFP_KERNEL can be used because it is called from the probe function. The call chain is: ipw2100_pci_init_one (the probe function) --> ipw2100_queues_allocate --> ipw2100_rx_allocate --> bd_queue_allocate Moreover, 'ipw2100_rx_allocate()' already uses GFP_KERNEL for some other memory allocations. When memory is allocated in 'ipw2100_tx_allocate()' (ipw2100.c), GFP_KERNEL can be used because it is called from the probe function. The call chain is: ipw2100_pci_init_one (the probe function) --> ipw2100_queues_allocate --> ipw2100_tx_allocate Moreover, 'ipw2100_tx_allocate()' already uses GFP_KERNEL for some other memory allocations. When memory is allocated in 'ipw_queue_tx_init()' (ipw2200.c), GFP_KERNEL can be used because it is called from a call chain that already uses GFP_KERNEL and no spin_lock is taken in the between. The call chain is: ipw_up --> ipw_load --> ipw_queue_reset --> ipw_queue_tx_init 'ipw_up()' already uses GFP_KERNEL for some other memory allocations. @@ @@ - PCI_DMA_BIDIRECTIONAL + DMA_BIDIRECTIONAL @@ @@ - PCI_DMA_TODEVICE + DMA_TO_DEVICE @@ @@ - PCI_DMA_FROMDEVICE + DMA_FROM_DEVICE @@ @@ - PCI_DMA_NONE + DMA_NONE @@ expression e1, e2, e3; @@ - pci_alloc_consistent(e1, e2, e3) + dma_alloc_coherent(&e1->dev, e2, e3, GFP_) @@ expression e1, e2, e3; @@ - pci_zalloc_consistent(e1, e2, e3) + dma_alloc_coherent(&e1->dev, e2, e3, GFP_) @@ expression e1, e2, e3, e4; @@ - pci_free_consistent(e1, e2, e3, e4) + dma_free_coherent(&e1->dev, e2, e3, e4) @@ expression e1, e2, e3, e4; @@ - pci_map_single(e1, e2, e3, e4) + dma_map_single(&e1->dev, e2, e3, e4) @@ expression e1, e2, e3, e4; @@ - pci_unmap_single(e1, e2, e3, e4) + dma_unmap_single(&e1->dev, e2, e3, e4) @@ expression e1, e2, e3, e4, e5; @@ - pci_map_page(e1, e2, e3, e4, e5) + dma_map_page(&e1->dev, e2, e3, e4, e5) @@ expression e1, e2, e3, e4; @@ - pci_unmap_page(e1, e2, e3, e4) + dma_unmap_page(&e1->dev, e2, e3, e4) @@ expression e1, e2, e3, e4; @@ - pci_map_sg(e1, e2, e3, e4) + dma_map_sg(&e1->dev, e2, e3, e4) @@ expression e1, e2, e3, e4; @@ - pci_unmap_sg(e1, e2, e3, e4) + dma_unmap_sg(&e1->dev, e2, e3, e4) @@ expression e1, e2, e3, e4; @@ - pci_dma_sync_single_for_cpu(e1, e2, e3, e4) + dma_sync_single_for_cpu(&e1->dev, e2, e3, e4) @@ expression e1, e2, e3, e4; @@ - pci_dma_sync_single_for_device(e1, e2, e3, e4) + dma_sync_single_for_device(&e1->dev, e2, e3, e4) @@ expression e1, e2, e3, e4; @@ - pci_dma_sync_sg_for_cpu(e1, e2, e3, e4) + dma_sync_sg_for_cpu(&e1->dev, e2, e3, e4) @@ expression e1, e2, e3, e4; @@ - pci_dma_sync_sg_for_device(e1, e2, e3, e4) + dma_sync_sg_for_device(&e1->dev, e2, e3, e4) @@ expression e1, e2; @@ - pci_dma_mapping_error(e1, e2) + dma_mapping_error(&e1->dev, e2) @@ expression e1, e2; @@ - pci_set_dma_mask(e1, e2) + dma_set_mask(&e1->dev, e2) @@ expression e1, e2; @@ - pci_set_consistent_dma_mask(e1, e2) + dma_set_coherent_mask(&e1->dev, e2) Signed-off-by:Christophe JAILLET <christophe.jaillet@wanadoo.fr> Signed-off-by:
Kalle Valo <kvalo@codeaurora.org> Link: https://lore.kernel.org/r/20200722101716.26185-1-christophe.jaillet@wanadoo.fr
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Christophe JAILLET authored
The call chain is: ipw2100_pci_init_one (the probe function) --> ipw2100_queues_allocate --> ipw2100_tx_allocate No lock is taken in the between. So it is safe to use GFP_KERNEL in 'ipw2100_tx_allocate()'. BTW, 'ipw2100_queues_allocate()' also calls 'ipw2100_msg_allocate()' which already allocates some memory using GFP_KERNEL. Signed-off-by: -
Vaibhav Gupta authored
Drivers using legacy power management .suspen()/.resume() callbacks have to manage PCI states and device's PM states themselves. They also need to take care of standard configuration registers. Switch to generic power management framework using a single "struct dev_pm_ops" variable to take the unnecessary load from the driver. This also avoids the need for the driver to directly call most of the PCI helper functions and device power state control functions as through the generic framework, PCI Core takes care of the necessary operations, and drivers are required to do only device-specific jobs. Signed-off-by:
Vaibhav Gupta <vaibhavgupta40@gmail.com> Signed-off-by:
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Alexander A. Klimov authored
Rationale: Reduces attack surface on kernel devs opening the links for MITM as HTTPS traffic is much harder to manipulate. Deterministic algorithm: For each file: If not .svg: For each line: If doesn't contain `\bxmlns\b`: For each link, `\bhttp://[^# \t\r\n]*(?:\w|/)`: If neither `\bgnu\.org/license`, nor `\bmozilla\.org/MPL\b`: If both the HTTP and HTTPS versions return 200 OK and serve the same content: Replace HTTP with HTTPS. Signed-off-by:Alexander A. Klimov <grandmaster@al2klimov.de> Signed-off-by:
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Alexander A. Klimov authored
Rationale: Reduces attack surface on kernel devs opening the links for MITM as HTTPS traffic is much harder to manipulate. Deterministic algorithm: For each file: If not .svg: For each line: If doesn't contain `\bxmlns\b`: For each link, `\bhttp://[^# \t\r\n]*(?:\w|/)`: If neither `\bgnu\.org/license`, nor `\bmozilla\.org/MPL\b`: If both the HTTP and HTTPS versions return 200 OK and serve the same content: Replace HTTP with HTTPS. Signed-off-by: -
Alexander A. Klimov authored
Rationale: Reduces attack surface on kernel devs opening the links for MITM as HTTPS traffic is much harder to manipulate. Deterministic algorithm: For each file: If not .svg: For each line: If doesn't contain `\bxmlns\b`: For each link, `\bhttp://[^# \t\r\n]*(?:\w|/)`: If neither `\bgnu\.org/license`, nor `\bmozilla\.org/MPL\b`: If both the HTTP and HTTPS versions return 200 OK and serve the same content: Replace HTTP with HTTPS. Signed-off-by: -
Vaibhav Gupta authored
Drivers using legacy PM have to manage PCI states and device's PM states themselves. They also need to take care of configuration registers. With improved and powerful support of generic PM, PCI Core takes care of above mentioned, device-independent, jobs. The callbacks make use of PCI helper functions like pci_save/restore_state(), pci_enable/disable_device() and pci_set_power_state() to do required operations. In generic mode, they are no longer needed. Change function parameter in both .suspend() and .resume() to "struct device*" type. Use dev_get_drvdata() to get drv data. The .suspend() callback is invoking rt2x00lib_suspend() which needs to be modified as generic rt2x00pci_suspend() has no pm_message_t type argument, passed to it, which is required by it according to its declaration. Although this variable remained unused in the function body. Hence, remove it from the function definition & declaration. rt2x00lib_suspend() is also invoked by rt2x00usb_suspend() and rt2x00soc_suspend(). Thus, modify the functional call accordingly in their function body. Earlier, .suspend() & .resume() were exported and were used by the following drivers: - drivers/net/wireless/ralink/rt2x00/rt2400pci.c - drivers/net/wireless/ralink/rt2x00/rt2500pci.c - drivers/net/wireless/ralink/rt2x00/rt2800pci.c - drivers/net/wireless/ralink/rt2x00/rt61pci.c Now, we only need to bind "struct dev_pm_ops" variable to "struct pci_driver". Thus, make the callbacks static. Declare an "extern const struct dev_pm_ops" variable and bind PM callbacks to it. Now, export the variable instead and use it in respective drivers. Compile-tested only. Signed-off-by: -
Ajay Singh authored
Moved macros used for Vendor/Device ID from wilc1000 driver to common header file and changed macro name for consistency with other macros. Signed-off-by:
Ajay Singh <ajay.kathat@microchip.com> Acked-by:
Ulf Hansson <ulf.hansson@linaro.org> Acked-by:
Pali Rohár <pali@kernel.org> Signed-off-by:
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Navid Emamdoost authored
In the implementation of mt7601u_mcu_msg_send(), skb is supposed to be consumed on all execution paths. Release skb before returning if test_bit() fails. Signed-off-by:
Navid Emamdoost <navid.emamdoost@gmail.com> Acked-by:
Jakub Kicinski <kubakici@wp.pl> Signed-off-by:
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Wolfram Sang authored
Missing this firmware is not fatal, my wifi card still works. Even more, I couldn't find any documentation what it is or where to get it. So, I don't think the users should be notified if it is missing. If you browse the net, you see the message is present is in quite some logs. Better remove it. Signed-off-by:
Wolfram Sang <wsa@kernel.org> Signed-off-by:
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Ping-Cheng Chen authored
Without this patch, RTL8821CE will not have coex support, and will crash the system because of the NULL pointers for the coex functions. While RTL8822C series are WiFi + BT combo chips, it needs the co-existence mechanism for the device to work on both WiFi and BT without interfering each other. And the coex support has already been added before, most of the mechanisms are implemented. The driver should just add corresponding functions to operate on different types of chips and its coex parameters. Fixes: f745eb9c ("rtw88: 8821c: Add 8821CE to Kconfig and Makefile") Signed-off-by:
Ping-Cheng Chen <pc.chen@realtek.com> Signed-off-by:
Tzu-En Huang <tehuang@realtek.com> Signed-off-by:
Yan-Hsuan Chuang <yhchuang@realtek.com> Signed-off-by:
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Wei Yongjun authored
The sparse tool complains as follows: drivers/net/wireless/realtek/rtw88/rtw8821c.c:1374:32: warning: symbol 'rtw8821c_rtw_pwr_track_tbl' was not declared. Should it be static? This variable is not used outside of rtw8821c.c, so this commit marks it static. Fixes: 3a431282 ("rtw88: 8821c: add power tracking") Reported-by:
Hulk Robot <hulkci@huawei.com> Signed-off-by:
Wei Yongjun <weiyongjun1@huawei.com> Signed-off-by:
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Tzu-En Huang authored
It's very useful to send H2C command for debug usage. Add an entry for sending H2C command to firmware. usage example: echo 42,00,00,43,02,00,00,00 > /sys/kernel/debug/ieee80211/phyX/rtw88 Signed-off-by:
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Yan-Hsuan Chuang authored
Enable/disable beacon accordingly when the BSS info changed. Signed-off-by:
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Yan-Hsuan Chuang authored
Sometimes mac80211 will just ask driver to change the interface instead of to remove and then add a new one. And for driver, to change the interface is just simply to remove and add a new one but change the type of it. Signed-off-by:
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Yan-Hsuan Chuang authored
The coex mechanism used to skip upon the freeze flag is raised. That will cause the coex mechanism being skipped unexpectedly. Coex only wanted to keep the TDMA table from being changed by BT side. So, check the freeze and reason, if the coex reason is coming from BT info, skip it, to make sure the coex triggered by Wifi itself can work. This is required for the AP mode, while the control flow is different with STA mode. When starting an AP mode, the AP mode needs to start working immedaitely after leaving IPS, and the freeze flag could be raised. If the coex info is skipped, then the AP mode will not set the antenna owner, leads to TX stuck. Fixes: 4136214f ("rtw88: add BT co-existence support") Signed-off-by:
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Tzu-En Huang authored
Previous settings for TX descriptors of and reserved page packets are insufficient. For the sequence number of packets downloaded to reserved page, it should be filled by hardware. And for ps-poll packets in reserved page, to prevent AID being changed by hardware, NAVUSEHDR should be set. Additionally, the rate should be adjusted based on the current band for mgmt and reserved page packets. Signed-off-by:
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Tsang-Shian Lin authored
Fix the transmission is not sent with short GI under some conditions even if the receiver supports short GI. If VHT capability IE exists in the beacon, the original code uses the short GI for 80M field as driver's short GI setting for transmission, even the current bandwidth is not 80MHz. Short GI supported fields for 20M/40M are informed in HT capability information element, and short GI supported field for 80M is informed in VHT capability information element. These three fields may be set to different values. Driver needs to record each short GI support field for each bandwidth, and send correct info depends on current bandwidth to the WiFi firmware. Fixes: e3037485 ("rtw88: new Realtek 802.11ac driver") Signed-off-by:
Tsang-Shian Lin <thlin@realtek.com> Signed-off-by:
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Tsang-Shian Lin authored
Convert the type of LDPC field to boolen because LDPC field of RA info H2C command to firmware is only one bit. Fixes: e3037485 ("rtw88: new Realtek 802.11ac driver") Signed-off-by:
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Christophe JAILLET authored
The wrappers in include/linux/pci-dma-compat.h should go away. The patch has been generated with the coccinelle script below and has been hand modified to replace GFP_ with a correct flag. It has been compile tested. When memory is allocated in 'islpci_alloc_memory()' (islpci_dev.c), GFP_KERNEL can be used because it is only called from a probe function and no spin_lock is taken in the between. The call chain is: prism54_probe (probe function, in 'islpci_hotplug.c') --> islpci_setup (in 'islpci_dev.c') --> islpci_alloc_memory (in 'islpci_dev.c') @@ @@ - PCI_DMA_BIDIRECTIONAL + DMA_BIDIRECTIONAL @@ @@ - PCI_DMA_TODEVICE + DMA_TO_DEVICE @@ @@ - PCI_DMA_FROMDEVICE + DMA_FROM_DEVICE @@ @@ - PCI_DMA_NONE + DMA_NONE @@ expression e1, e2, e3; @@ - pci_alloc_consistent(e1, e2, e3) + dma_alloc_coherent(&e1->dev, e2, e3, GFP_) @@ expression e1, e2, e3; @@ - pci_zalloc_consistent(e1, e2, e3) + dma_alloc_coherent(&e1->dev, e2, e3, GFP_) @@ expression e1, e2, e3, e4; @@ - pci_free_consistent(e1, e2, e3, e4) + dma_free_coherent(&e1->dev, e2, e3, e4) @@ expression e1, e2, e3, e4; @@ - pci_map_single(e1, e2, e3, e4) + dma_map_single(&e1->dev, e2, e3, e4) @@ expression e1, e2, e3, e4; @@ - pci_unmap_single(e1, e2, e3, e4) + dma_unmap_single(&e1->dev, e2, e3, e4) @@ expression e1, e2, e3, e4, e5; @@ - pci_map_page(e1, e2, e3, e4, e5) + dma_map_page(&e1->dev, e2, e3, e4, e5) @@ expression e1, e2, e3, e4; @@ - pci_unmap_page(e1, e2, e3, e4) + dma_unmap_page(&e1->dev, e2, e3, e4) @@ expression e1, e2, e3, e4; @@ - pci_map_sg(e1, e2, e3, e4) + dma_map_sg(&e1->dev, e2, e3, e4) @@ expression e1, e2, e3, e4; @@ - pci_unmap_sg(e1, e2, e3, e4) + dma_unmap_sg(&e1->dev, e2, e3, e4) @@ expression e1, e2, e3, e4; @@ - pci_dma_sync_single_for_cpu(e1, e2, e3, e4) + dma_sync_single_for_cpu(&e1->dev, e2, e3, e4) @@ expression e1, e2, e3, e4; @@ - pci_dma_sync_single_for_device(e1, e2, e3, e4) + dma_sync_single_for_device(&e1->dev, e2, e3, e4) @@ expression e1, e2, e3, e4; @@ - pci_dma_sync_sg_for_cpu(e1, e2, e3, e4) + dma_sync_sg_for_cpu(&e1->dev, e2, e3, e4) @@ expression e1, e2, e3, e4; @@ - pci_dma_sync_sg_for_device(e1, e2, e3, e4) + dma_sync_sg_for_device(&e1->dev, e2, e3, e4) @@ expression e1, e2; @@ - pci_dma_mapping_error(e1, e2) + dma_mapping_error(&e1->dev, e2) @@ expression e1, e2; @@ - pci_set_dma_mask(e1, e2) + dma_set_mask(&e1->dev, e2) @@ expression e1, e2; @@ - pci_set_consistent_dma_mask(e1, e2) + dma_set_coherent_mask(&e1->dev, e2) Signed-off-by: -
Vaibhav Gupta authored
Drivers using legacy power management .suspen()/.resume() callbacks have to manage PCI states and device's PM states themselves. They also need to take care of standard configuration registers. Switch to generic power management framework using a single "struct dev_pm_ops" variable to take the unnecessary load from the driver. This also avoids the need for the driver to directly call most of the PCI helper functions and device power state control functions as through the generic framework, PCI Core takes care of the necessary operations, and drivers are required to do only device-specific jobs. Signed-off-by:
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Alexander A. Klimov authored
Rationale: Reduces attack surface on kernel devs opening the links for MITM as HTTPS traffic is much harder to manipulate. Deterministic algorithm: For each file: If not .svg: For each line: If doesn't contain `\bxmlns\b`: For each link, `\bhttp://[^# \t\r\n]*(?:\w|/)`: If neither `\bgnu\.org/license`, nor `\bmozilla\.org/MPL\b`: If both the HTTP and HTTPS versions return 200 OK and serve the same content: Replace HTTP with HTTPS. Signed-off-by: -
Christophe JAILLET authored
The wrappers in include/linux/pci-dma-compat.h should go away. The patch has been generated with the coccinelle script below and has been hand modified to replace GFP_ with a correct flag. It has been compile tested. When memory is allocated in 'p54p_probe()', GFP_KERNEL can be used because it is the probe function and no spin_lock is taken in the between. @@ @@ - PCI_DMA_BIDIRECTIONAL + DMA_BIDIRECTIONAL @@ @@ - PCI_DMA_TODEVICE + DMA_TO_DEVICE @@ @@ - PCI_DMA_FROMDEVICE + DMA_FROM_DEVICE @@ @@ - PCI_DMA_NONE + DMA_NONE @@ expression e1, e2, e3; @@ - pci_alloc_consistent(e1, e2, e3) + dma_alloc_coherent(&e1->dev, e2, e3, GFP_) @@ expression e1, e2, e3; @@ - pci_zalloc_consistent(e1, e2, e3) + dma_alloc_coherent(&e1->dev, e2, e3, GFP_) @@ expression e1, e2, e3, e4; @@ - pci_free_consistent(e1, e2, e3, e4) + dma_free_coherent(&e1->dev, e2, e3, e4) @@ expression e1, e2, e3, e4; @@ - pci_map_single(e1, e2, e3, e4) + dma_map_single(&e1->dev, e2, e3, e4) @@ expression e1, e2, e3, e4; @@ - pci_unmap_single(e1, e2, e3, e4) + dma_unmap_single(&e1->dev, e2, e3, e4) @@ expression e1, e2, e3, e4, e5; @@ - pci_map_page(e1, e2, e3, e4, e5) + dma_map_page(&e1->dev, e2, e3, e4, e5) @@ expression e1, e2, e3, e4; @@ - pci_unmap_page(e1, e2, e3, e4) + dma_unmap_page(&e1->dev, e2, e3, e4) @@ expression e1, e2, e3, e4; @@ - pci_map_sg(e1, e2, e3, e4) + dma_map_sg(&e1->dev, e2, e3, e4) @@ expression e1, e2, e3, e4; @@ - pci_unmap_sg(e1, e2, e3, e4) + dma_unmap_sg(&e1->dev, e2, e3, e4) @@ expression e1, e2, e3, e4; @@ - pci_dma_sync_single_for_cpu(e1, e2, e3, e4) + dma_sync_single_for_cpu(&e1->dev, e2, e3, e4) @@ expression e1, e2, e3, e4; @@ - pci_dma_sync_single_for_device(e1, e2, e3, e4) + dma_sync_single_for_device(&e1->dev, e2, e3, e4) @@ expression e1, e2, e3, e4; @@ - pci_dma_sync_sg_for_cpu(e1, e2, e3, e4) + dma_sync_sg_for_cpu(&e1->dev, e2, e3, e4) @@ expression e1, e2, e3, e4; @@ - pci_dma_sync_sg_for_device(e1, e2, e3, e4) + dma_sync_sg_for_device(&e1->dev, e2, e3, e4) @@ expression e1, e2; @@ - pci_dma_mapping_error(e1, e2) + dma_mapping_error(&e1->dev, e2) @@ expression e1, e2; @@ - pci_set_dma_mask(e1, e2) + dma_set_mask(&e1->dev, e2) @@ expression e1, e2; @@ - pci_set_consistent_dma_mask(e1, e2) + dma_set_coherent_mask(&e1->dev, e2) Signed-off-by:
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Xu Wang authored
Remove unnecassary casts in the argument to kfree. Signed-off-by:
Xu Wang <vulab@iscas.ac.cn> Signed-off-by:
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Andy Shevchenko authored
Use %*ph format to print small buffer as hex string. Signed-off-by:
Andy Shevchenko <andriy.shevchenko@linux.intel.com> Acked-by:
Ping-Ke Shih <pkshih@realtek.com> Signed-off-by:
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Colin Ian King authored
The variables ant_num and single_ant_path are being initialized with a value that is never read and are being updated later with a new value. The initializations are redundant and can be removed. Addresses-Coverity: ("Unused value") Signed-off-by:Colin Ian King <colin.king@canonical.com> Acked-by:
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https://github.com/nbd168/wirelessKalle Valo authored
mt76 patches for 5.9 * locking fixes * tx queue mapping fixes for 7615/7915 * ARP filter offload for 7663 * runtime power management for 7663 * testmode support for mfg calibration * memory leak fixes * support for more channels # gpg: Signature made Tue 21 Jul 2020 08:01:28 PM EEST using DSA key ID 02A76EF5 # gpg: Good signature from "Felix Fietkau <nbd@nbd.name>" # gpg: WARNING: This key is not certified with a trusted signature! # gpg: There is no indication that the signature belongs to the owner. # Primary key fingerprint: 75D1 1A7D 91A7 710F 4900 42EF D77D 141D 02A7 6EF5
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- 25 Jul, 2020 13 commits
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David S. Miller authored
Chris Packham says: ==================== net: dsa: mv88e6xxx: port mtu support This series connects up the mv88e6xxx switches to the dsa infrastructure for configuring the port MTU. The first patch is also a bug fix which might be a candiatate for stable. I've rebased this series on top of net-next/master to pick up Andrew's change for the gigabit switches. Patch 1 and 2 are unchanged (aside from adding Andrew's Reviewed-by). Patch 3 is reworked to make use of the existing mtu support. ==================== Signed-off-by:David S. Miller <davem@davemloft.net>
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Chris Packham authored
Some of the chips in the mv88e6xxx family don't support jumbo configuration per port. But they do have a chip-wide max frame size that can be used. Use this to approximate the behaviour of configuring a port based MTU. Signed-off-by:
Chris Packham <chris.packham@alliedtelesis.co.nz> Reviewed-by:
Andrew Lunn <andrew@lunn.ch> Signed-off-by:
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Chris Packham authored
The MV88E6190 and MV88E6190X both support per port jumbo configuration just like the other GE switches. Install the appropriate ops. Signed-off-by:
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Chris Packham authored
The MV88E6097 chip does not support configuring jumbo frames. Prior to commit 5f436666 only the 6352, 6351, 6165 and 6320 chips configured jumbo mode. The refactor accidentally added the function for the 6097. Remove the erroneous function pointer assignment. Fixes: 5f436666 ("net: dsa: mv88e6xxx: Refactor setting of jumbo frames") Signed-off-by:
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Wang Hai authored
Remove casting the values returned by memory allocation function. Coccinelle emits WARNING: ./drivers/net/ethernet/hisilicon/hix5hd2_gmac.c:1027:9-23: WARNING: casting value returned by memory allocation function to (struct sg_desc *) is useless. This issue was detected by using the Coccinelle software. Signed-off-by:
Wang Hai <wanghai38@huawei.com> Signed-off-by:
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David S. Miller authored
Tom Parkin says: ==================== l2tp: avoid multiple assignment, remove BUG_ON l2tp hasn't been kept up to date with the static analysis checks offered by checkpatch.pl. This patchset builds on the series: "l2tp: cleanup checkpatch.pl warnings" and "l2tp: further checkpatch.pl cleanups" to resolve some of the remaining checkpatch warnings in l2tp. ==================== Signed-off-by: -
Tom Parkin authored
l2tp_session_free called BUG_ON if the tunnel magic feather value wasn't correct. The intent of this was to catch lifetime bugs; for example early tunnel free due to incorrect use of reference counts. Since the tunnel magic feather being wrong indicates either early free or structure corruption, we can avoid doing more damage by simply leaving the tunnel structure alone. If the tunnel refcount isn't dropped when it should be, the tunnel instance will remain in the kernel, resulting in the tunnel structure and socket leaking. Signed-off-by:
Tom Parkin <tparkin@katalix.com> Signed-off-by:
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Tom Parkin authored
l2tp_session_free is only called by l2tp_session_dec_refcount when the reference count reaches zero, so it's of limited value to validate the reference count value in l2tp_session_free itself. Signed-off-by:
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Tom Parkin authored
l2tp_session_queue_purge is used during session shutdown to drop any skbs queued for reordering purposes according to L2TP dataplane rules. The BUG_ON in this function checks the session magic feather in an attempt to catch lifetime bugs. Rather than crashing the kernel with a BUG_ON, we can simply WARN_ON and refuse to do anything more -- in the worst case this could result in a leak. However this is highly unlikely given that the session purge only occurs from codepaths which have obtained the session by means of a lookup via. the parent tunnel and which check the session "dead" flag to protect against shutdown races. While we're here, have l2tp_session_queue_purge return void rather than an integer, since neither of the callsites checked the return value. Signed-off-by:
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Tom Parkin authored
checkpatch advises that WARN_ON and recovery code are preferred over BUG_ON which crashes the kernel. l2tp_ppp has a BUG_ON check of struct seq_file's private pointer in pppol2tp_seq_start prior to accessing data through that pointer. Rather than crashing, we can simply bail out early and return NULL in order to terminate the seq file processing in much the same way as we do when reaching the end of tunnel/session instances to render. Retain a WARN_ON to help trace possible bugs in this area. Signed-off-by:
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Tom Parkin authored
checkpatch advises that WARN_ON and recovery code are preferred over BUG_ON which crashes the kernel. l2tp_ppp.c's BUG_ON checks of the l2tp session structure's "magic" field occur in code paths where it's reasonably easy to recover: * In the case of pppol2tp_sock_to_session, we can return NULL and the caller will bail out appropriately. There is no change required to any of the callsites of this function since they already handle pppol2tp_sock_to_session returning NULL. * In the case of pppol2tp_session_destruct we can just avoid decrementing the reference count on the suspect session structure. In the worst case scenario this results in a memory leak, which is preferable to a crash. Convert these uses of BUG_ON to WARN_ON accordingly. Signed-off-by:
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Tom Parkin authored
l2tp_tunnel_closeall is only called from l2tp_core.c, and it's easy to statically analyse the code path calling it to validate that it should never be passed a NULL tunnel pointer. Having a BUG_ON checking the tunnel pointer triggers a checkpatch warning. Since the BUG_ON is of no value, remove it to avoid the warning. Signed-off-by:
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Tom Parkin authored
l2tp_session_queue_purge is only called from l2tp_core.c, and it's easy to statically analyse the code paths calling it to validate that it should never be passed a NULL session pointer. Having a BUG_ON checking the session pointer triggers a checkpatch warning. Since the BUG_ON is of no value, remove it to avoid the warning. Signed-off-by:
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