- 30 Aug, 2021 33 commits
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Dan Carpenter authored
These checks are still not strict enough. The main problem is that if "cb->type == QRTR_TYPE_NEW_SERVER" is true then "len - hdrlen" is guaranteed to be 4 but we need to be at least 16 bytes. In fact, we can reject everything smaller than sizeof(*pkt) which is 20 bytes. Also I don't like the ALIGN(size, 4). It's better to just insist that data is needs to be aligned at the start. Fixes: 0baa99ee ("net: qrtr: Allow non-immediate node routing") Signed-off-by:
Dan Carpenter <dan.carpenter@oracle.com> Signed-off-by:
David S. Miller <davem@davemloft.net>
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Haimin Zhang authored
syzbot report an array-index-out-of-bounds in taprio_change index 16 is out of range for type '__u16 [16]' that's because mqprio->num_tc is lager than TC_MAX_QUEUE,so we check the return value of netdev_set_num_tc. Reported-by: syzbot+2b3e5fb6c7ef285a94f6@syzkaller.appspotmail.com Signed-off-by:
Haimin Zhang <tcs_kernel@tencent.com> Signed-off-by:
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王贇 authored
In netlbl_cipsov4_add_std() when 'doi_def->map.std' alloc failed, we sometime observe panic: BUG: kernel NULL pointer dereference, address: ... RIP: 0010:cipso_v4_doi_free+0x3a/0x80 ... Call Trace: netlbl_cipsov4_add_std+0xf4/0x8c0 netlbl_cipsov4_add+0x13f/0x1b0 genl_family_rcv_msg_doit.isra.15+0x132/0x170 genl_rcv_msg+0x125/0x240 This is because in cipso_v4_doi_free() there is no check on 'doi_def->map.std' when doi_def->type got value 1, which is possibe, since netlbl_cipsov4_add_std() haven't initialize it before alloc 'doi_def->map.std'. This patch just add the check to prevent panic happen in similar cases. Reported-by:
Abaci <abaci@linux.alibaba.com> Signed-off-by:
Michael Wang <yun.wang@linux.alibaba.com> Signed-off-by:
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David S. Miller authored
Eric Dumazet says: ==================== inet: make exception handling less predictible This second round of patches is addressing Keyu Man recommendations to make linux hosts more robust against a class of brute force attacks. ==================== Signed-off-by: -
Eric Dumazet authored
Even after commit 6457378f ("ipv4: use siphash instead of Jenkins in fnhe_hashfun()"), an attacker can still use brute force to learn some secrets from a victim linux host. One way to defeat these attacks is to make the max depth of the hash table bucket a random value. Before this patch, each bucket of the hash table used to store exceptions could contain 6 items under attack. After the patch, each bucket would contains a random number of items, between 6 and 10. The attacker can no longer infer secrets. This is slightly increasing memory size used by the hash table, by 50% in average, we do not expect this to be a problem. This patch is more complex than the prior one (IPv6 equivalent), because IPv4 was reusing the oldest entry. Since we need to be able to evict more than one entry per update_or_create_fnhe() call, I had to replace fnhe_oldest() with fnhe_remove_oldest(). Also note that we will queue extra kfree_rcu() calls under stress, which hopefully wont be a too big issue. Fixes: 4895c771 ("ipv4: Add FIB nexthop exceptions.") Signed-off-by:
Eric Dumazet <edumazet@google.com> Reported-by:
Keyu Man <kman001@ucr.edu> Cc: Willy Tarreau <w@1wt.eu> Signed-off-by:
David Ahern <dsahern@kernel.org> Tested-by:
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Eric Dumazet authored
Even after commit 4785305c ("ipv6: use siphash in rt6_exception_hash()"), an attacker can still use brute force to learn some secrets from a victim linux host. One way to defeat these attacks is to make the max depth of the hash table bucket a random value. Before this patch, each bucket of the hash table used to store exceptions could contain 6 items under attack. After the patch, each bucket would contains a random number of items, between 6 and 10. The attacker can no longer infer secrets. This is slightly increasing memory size used by the hash table, we do not expect this to be a problem. Following patch is dealing with the same issue in IPv4. Fixes: 35732d01 ("ipv6: introduce a hash table to store dst cache") Signed-off-by:
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git://git.kernel.org/pub/scm/linux/kernel/git/pablo/nf-nextDavid S. Miller authored
Pablo Neira Ayuso says: ==================== Netfilter updates for net-next The following patchset contains Netfilter updates for net-next: 1) Clean up and consolidate ct ecache infrastructure by merging ct and expect notifiers, from Florian Westphal. 2) Missing counters and timestamp in nfnetlink_queue and _log conntrack information. 3) Missing error check for xt_register_template() in iptables mangle, as a incremental fix for the previous pull request, also from Florian Westphal. 4) Add netfilter hooks for the SRv6 lightweigh tunnel driver, from Ryoga Sato. The hooks are enabled via nf_hooks_lwtunnel sysctl to make sure existing netfilter rulesets do not break. There is a static key to disable the hooks by default. The pktgen_bench_xmit_mode_netif_receive.sh shows no noticeable impact in the seg6_input path for non-netfilter users: similar numbers with and without this patch. This is a sample of the perf report output: 11.67% kpktgend_0 [ipv6] [k] ipv6_get_saddr_eval 7.89% kpktgend_0 [ipv6] [k] __ipv6_addr_label 7.52% kpktgend_0 [ipv6] [k] __ipv6_dev_get_saddr 6.63% kpktgend_0 [kernel.vmlinux] [k] asm_exc_nmi 4.74% kpktgend_0 [ipv6] [k] fib6_node_lookup_1 3.48% kpktgend_0 [kernel.vmlinux] [k] pskb_expand_head 3.33% kpktgend_0 [ipv6] [k] ip6_rcv_core.isra.29 3.33% kpktgend_0 [ipv6] [k] seg6_do_srh_encap 2.53% kpktgend_0 [ipv6] [k] ipv6_dev_get_saddr 2.45% kpktgend_0 [ipv6] [k] fib6_table_lookup 2.24% kpktgend_0 [kernel.vmlinux] [k] ___cache_free 2.16% kpktgend_0 [ipv6] [k] ip6_pol_route 2.11% kpktgend_0 [kernel.vmlinux] [k] __ipv6_addr_type ==================== Signed-off-by: -
David S. Miller authored
Linus Walleij says: ==================== IXP46x PTP Timer clean-up and DT ChangeLog v2->v3: - Dropped the patch enabling compile tests: we are still dependent on some machine-specific headers. The plan is to get rid of this after device tree conversion. We include one of the compile testing fixes anyway, because it is nice to have fixed. - Rebased on the latest net-next ==================== Signed-off-by: -
Linus Walleij authored
This adds device tree probing support for the PTP module adjacent to the ethernet module. It is pretty straight forward, all resources are in the device tree as they come to the platform device. Cc: Arnd Bergmann <arnd@arndb.de> Signed-off-by:
Linus Walleij <linus.walleij@linaro.org> Signed-off-by:
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Linus Walleij authored
This adds device tree bindings for the IXP46x PTP Timer, a companion to the IXP4xx ethernet in newer platforms. Cc: devicetree@vger.kernel.org Cc: Arnd Bergmann <arnd@arndb.de> Reviewed-by:
Rob Herring <robh@kernel.org> Signed-off-by:
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Linus Walleij authored
The driver is being passed interrupts, then looking up the same interrupts as GPIOs a second time to convert them into interrupts and set properties on them. This is pointless: the GPIO and irqchip APIs of a GPIO chip are orthogonal. Just request the interrupts and be done with it, drop reliance on any GPIO functions or definitions. Use devres-managed functions and add a small devress quirk to unregister the clock as well and we can rely on devres to handle all the resources and cut down a bunch of boilerplate in the process. Cc: Arnd Bergmann <arnd@arndb.de> Signed-off-by:
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Arnd Bergmann authored
Change the driver to use portable integer types to avoid warnings during compile testing, including: drivers/net/ethernet/xscale/ixp4xx_eth.c:721:21: error: cast to 'u32 *' (aka 'unsigned int *') from smaller integer type 'int' [-Werror,-Wint-to-pointer-cast] memcpy_swab32(mem, (u32 *)((int)skb->data & ~3), bytes / 4); ^ drivers/net/ethernet/xscale/ixp4xx_eth.c:963:12: error: incompatible pointer types passing 'u32 *' (aka 'unsigned int *') to parameter of type 'dma_addr_t *' (aka 'unsigned long long *') [-Werror,-Wincompatible-pointer-types] &port->desc_tab_phys))) ^~~~~~~~~~~~~~~~~~~~ include/linux/dmapool.h:27:20: note: passing argument to parameter 'handle' here dma_addr_t *handle); ^ Signed-off-by:Arnd Bergmann <arnd@arndb.de> Signed-off-by:
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Arnd Bergmann authored
After the recent ixp4xx cleanups, the ptp driver has gained a build failure in some configurations: drivers/net/ethernet/xscale/ptp_ixp46x.c: In function 'ptp_ixp_init': drivers/net/ethernet/xscale/ptp_ixp46x.c:290:51: error: 'IXP4XX_TIMESYNC_BASE_VIRT' undeclared (first use in this function) Avoid the last bit of hardcoded constants from platform headers by turning the ptp driver bit into a platform driver and passing the IRQ and MMIO address as resources. This is a bit tricky: - The interface between the two drivers is now the new ixp46x_ptp_find() function, replacing the global ixp46x_phc_index variable. The call is done as late as possible, in hwtstamp_set(), to ensure that the ptp device is fully probed. - As the ptp driver is now called by the network driver, the link dependency is reversed, which in turn requires a small Makefile hack - The GPIO number is still left hardcoded. This is clearly not great, but it can be addressed later. Note that commit 98ac0cc2 ("ARM: ixp4xx: Convert to MULTI_IRQ_HANDLER") changed the IRQ number to something meaningless. Passing the correct IRQ in a resource fixes this. - When the PTP driver is disabled, ethtool .get_ts_info() now correctly lists only software timestamping regardless of the hardware. Signed-off-by:
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David S. Miller authored
Guangbin Huang says: ==================== net: hns3: add some cleanups This series includes some cleanups for the HNS3 ethernet driver. ==================== Signed-off-by: -
Hao Chen authored
The parameter name of hclge_ptp_clean_tx_hwts() in declaration is "dev", but the definition of this function is used the common name "hdev" as other functions, so modify it. Signed-off-by:
Hao Chen <chenhao288@hisilicon.com> Signed-off-by:
Guangbin Huang <huangguangbin2@huawei.com> Signed-off-by:
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Hao Chen authored
Replace the "? :" statement wich max() to simplify code. Signed-off-by:
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Hao Chen authored
The type of tqp_vector->vector_irq is int, so modify its print format to "%d". Signed-off-by:
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Guangbin Huang authored
To improve flexibility, simplicity and maintainability to dump info of every element of tm priority, add a struct hclge_dbg_item array of tm priority and fill string of every data according to this array. Signed-off-by:
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Guangbin Huang authored
This patch reconstructs function hclge_ets_validate() to reduce the code cycle complexity and make code more concise. Signed-off-by:
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Peng Li authored
This patch reconstructs function hns3_self_test to reduce the code cycle complexity and make code more concise. Signed-off-by:
Peng Li <lipeng321@huawei.com> Signed-off-by:
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Jiaran Zhang authored
To make the format of each member initialization of structure array clearer, initialize each member on a separate line. Signed-off-by:
Jiaran Zhang <zhangjiaran@huawei.com> Signed-off-by:
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David S. Miller authored
Michael Chan says: ==================== bnxt_en: Implement new driver APIs to send FW messages The current driver APIs to send messages to the firmware allow only one outstanding message in flight. There is only one buffer for the firmware response for each firmware channel. To send a firmware message, all callers must take a mutex and it is released after the firmware response has been read. This scheme does not allow multiple firmware messages in flight. Firmware may take a long time to respond to some messages (e.g. NVRAM related ones) and this causes the mutex to be held for a long time, blocking other callers. This patchset intoduces the new driver APIs to address the above shortcomings. The new APIs are compatible with new and old firmware. But the new deferred firmware response mechanism will require newer firmware in order to allow multiple outstanding firmware commands. All callers are updated to use the new APIs. v2: Patch 4 and patch 9 updated to fix issues reported by test robot ==================== Signed-off-by: -
Edwin Peer authored
Add infrastructure to maintain a pending list of HWRM commands awaiting completion and reduce the scope of the hwrm_cmd_lock mutex so that it protects only the request mailbox. The mailbox is free to use for one or more concurrent commands after receiving deferred response events. For uniformity and completeness, use the same pending list for collecting completions for commands that respond via a completion ring. These commands are only used for freeing rings and for IRQ test and we only support one such command in flight. Note deferred responses are also only supported on the main channel. The secondary channel (KONG) does not support deferred responses. Signed-off-by:
Edwin Peer <edwin.peer@broadcom.com> Signed-off-by:
Michael Chan <michael.chan@broadcom.com> Signed-off-by:
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Edwin Peer authored
There are no longer any callers relying on the old API. Signed-off-by:
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Edwin Peer authored
The conversion follows this general pattern for most of the calls: 1. The input message is changed from a stack variable initialized using bnxt_hwrm_cmd_hdr_init() to a pointer allocated and intialized using hwrm_req_init(). 2. If we don't need to read the firmware response, the hwrm_send_message() call is replaced with hwrm_req_send(). 3. If we need to read the firmware response, the mutex lock is replaced by hwrm_req_hold() to hold the response. When the response is read, the mutex unlock is replaced by hwrm_req_drop(). If additional DMA buffers are needed for firmware response data, the hwrm_req_dma_slice() is used instead of calling dma_alloc_coherent(). Some minor refactoring is also done while doing these conversions. v2: Fix unintialized variable warnings in __bnxt_hwrm_get_tx_rings() and bnxt_approve_mac() Signed-off-by:
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Edwin Peer authored
We currently use the hwrm_cmd_lock to serialize the update of the firmware's link status response data and the copying of link status data to the VF. This won't work when we update the firmware message APIs, so we use the link_lock mutex instead. All link_info data should be updated under the link_lock mutex. Also add link_lock to functions that touch link_info in __bnxt_open_nic() and bnxt_probe_phy(). The locking is probably not strictly necessary during probe, but it's more consistent. Signed-off-by:
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Edwin Peer authored
Slices are a mechanism for suballocating DMA mapped regions from the request buffer. Such regions can be used for indirect command data instead of creating new mappings with dma_alloc_coherent(). The advantage of using a slice is that the lifetime of the slice is bound to the request and will be automatically unmapped when the request is consumed. A single external region is also supported. This allows for regions that will not fit inside the spare request buffer space such that the same API can be used consistently even for larger mappings. Signed-off-by:
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Edwin Peer authored
hwrm_req_replace() provides an assignment like operation to replace a managed HWRM request object with data from a pre-built source. This is useful for handling request data provided by higher layer HWRM clients. Signed-off-by:
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Edwin Peer authored
During firmware crash recovery, it is possible for firmware to respond to stale HWRM commands that have already timed out. Because response buffers may be reused, any out of sequence responses need to be ignored and only the matching seq_id should be accepted. Also, READ_ONCE should be used for the reads from the DMA buffer to ensure that the necessary loads are scheduled. Reviewed-by:
Scott Branden <scott.branden@broadcom.com> Signed-off-by:
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Edwin Peer authored
This change constitutes a major step towards supporting multiple firmware commands in flight by maintaining a separate response buffer for the duration of each request. These firmware commands are also known as Hardware Resource Manager (HWRM) commands. Using separate response buffers requires an API change in order for callers to be able to free the buffer when done. It is impossible to keep the existing APIs unchanged. The existing usage for a simple HWRM message request such as the following: struct input req = {0}; bnxt_hwrm_cmd_hdr_init(bp, &req, REQ_TYPE, -1, -1); rc = hwrm_send_message(bp, &req, sizeof(req), HWRM_CMD_TIMEOUT); if (rc) /* error */ changes to: struct input *req; rc = hwrm_req_init(bp, req, REQ_TYPE); if (rc) /* error */ rc = hwrm_req_send(bp, req); /* consumes req */ if (rc) /* error */ The key changes are: 1. The req is no longer allocated on the stack. 2. The caller must call hwrm_req_init() to allocate a req buffer and check for a valid buffer. 3. The req buffer is automatically released when hwrm_req_send() returns. 4. If the caller wants to check the firmware response, the caller must call hwrm_req_hold() to take ownership of the response buffer and release it afterwards using hwrm_req_drop(). The caller is no longer required to explicitly hold the hwrm_cmd_lock mutex to read the response. 5. Because the firmware commands and responses all have different sizes, some safeguards are added to the code. This patch maintains legacy API compatibiltiy, implementing the old API in terms of the new. The follow-on patches will convert all callers to use the new APIs. v2: Fix redefined writeq with parisc .config Fix "cast from pointer to integer of different size" warning in hwrm_calc_sentinel() Signed-off-by: -
Edwin Peer authored
Move all firmware messaging functions and definitions to new bnxt_hwrm.[ch]. The follow-on patches will make major modifications to these APIs. Signed-off-by:
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Edwin Peer authored
Refactor the code so that __bnxt_hwrm_ver_get() does not call bnxt_hwrm_do_send_msg() directly. The new APIs will not expose this internal call. Add a new bnxt_hwrm_poll() to poll the HWRM_VER_GET firmware call silently. The other bnxt_hwrm_ver_get() function will send the HWRM_VER_GET message directly with error logs enabled. Signed-off-by:
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Edwin Peer authored
The additional response buffer serves no useful purpose. There can be only one firmware command in flight due to the hwrm_cmd_lock mutex, which is taken for the entire duration of any command completion, KONG or otherwise. It is thus safe to share a single DMA buffer. Removing the code associated with the additional mapping will simplify matters in the next patch, which allocates response buffers from DMA pools on a per request basis. Signed-off-by:
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- 29 Aug, 2021 7 commits
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Ryoga Saito authored
This patch introduces netfilter hooks for solving the problem that conntrack couldn't record both inner flows and outer flows. This patch also introduces a new sysctl toggle for enabling lightweight tunnel netfilter hooks. Signed-off-by:
Ryoga Saito <contact@proelbtn.com> Signed-off-by:
Pablo Neira Ayuso <pablo@netfilter.org>
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David S. Miller authored
Merge tag 'wireless-drivers-next-2021-08-29' of git://git.kernel.org/pub/scm/linux/kernel/git/kvalo/wireless-drivers-next Kalle Valo says: ==================== pull-request: wireless-drivers-next-2021-08-29 here's a pull request to net-next tree, more info below. Please let me know if there are any problems. wireless-drivers-next patches for v5.15 Second, and most likely last, set of patches for v5.15. Lots of iwlwifi patches this time, but smaller changes to other drivers as well. Nothing special standing out. Major changes: rtw88 * add quirk to disable pci caps on HP Pavilion 14-ce0xxx brcmfmac * Add WPA3 Personal with FT to supported cipher suites wcn36xx * allow firmware name to be overridden by DT iwlwifi * support scanning hidden 6GHz networks * support for a new hardware family (Bz) * support for new firmware API versions mwifiex * add reset_d3cold quirk for Surface gen4+ devices ==================== Signed-off-by:
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Jing Yangyang authored
./include/linux/ssb/ssb_driver_extif.h:200:8-9:WARNING: return of 0/1 in function 'ssb_extif_available' with return type bool Return statements in functions returning bool should use true/false instead of 1/0. Generated by: scripts/coccinelle/misc/boolreturn.cocci Reported-by:
Zeal Robot <zealci@zte.com.cn> Signed-off-by:
Jing Yangyang <jing.yangyang@zte.com.cn> Signed-off-by:
Kalle Valo <kvalo@codeaurora.org> Link: https://lore.kernel.org/r/20210824061341.59255-1-deng.changcheng@zte.com.cn
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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. It has been hand modified to use 'dma_set_mask_and_coherent()' instead of 'pci_set_dma_mask()/pci_set_consistent_dma_mask()' when applicable. This is less verbose. It has been compile tested. @@ @@ - 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:
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Tsuchiya Yuto authored
To reset mwifiex on Surface gen4+ (Pro 4 or later gen) devices, it seems that putting the wifi device into D3cold is required according to errata.inf file on Windows installation (Windows/INF/errata.inf). This patch adds a function that performs power-cycle (put into D3cold then D0) and call the function at the end of reset_prepare(). Note: Need to also reset the parent device (bridge) of wifi on SB1; it might be because the bridge of wifi always reports it's in D3hot. When I tried to reset only the wifi device (not touching parent), it gave the following error and the reset failed: acpi device:4b: Cannot transition to power state D0 for parent in D3hot mwifiex_pcie 0000:03:00.0: can't change power state from D3cold to D0 (config space inaccessible) Signed-off-by:Tsuchiya Yuto <kitakar@gmail.com> Signed-off-by:
Jonas Dreßler <verdre@v0yd.nl> Signed-off-by:
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Jonas Dreßler authored
This commit adds the ability to apply device-specific quirks to the mwifiex driver. It uses DMI matching similar to the quirks brcmfmac uses with dmi.c. We'll add identifiers to match various MS Surface devices, which this is primarily meant for, later. This commit is a slightly modified version of a previous patch sent in by Tsuchiya Yuto. Co-developed-by:
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Ahmad Fatoum authored
When resuming from suspend, brcmf_pcie_pm_leave_D3 will first attempt a hot resume and then fall back to removing the PCI device and then reprobing. If this probe fails, the kernel will oops, because brcmf_err, which is called to report the failure will dereference the stale bus pointer. Open code and use the default bus-less brcmf_err to avoid this. Fixes: 8602e624 ("brcmfmac: pass bus to the __brcmf_err() in pcie.c") Signed-off-by:
Ahmad Fatoum <a.fatoum@pengutronix.de> Signed-off-by:
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