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2022-04-06wfx: get out from the staging areaJérôme Pouiller39-8170/+0
The wfx driver is now mature enough to leave the staging area. Signed-off-by: Jérôme Pouiller <[email protected]> Signed-off-by: Kalle Valo <[email protected]>
2022-03-28Merge tag 'staging-5.18-rc1' of ↵Linus Torvalds36-1620/+1230
git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/staging Pull staging driver updates from Greg KH: "Here is the big set of staging driver updates for 5.18-rc1. Loads of tiny cleanups for almost all staging drivers in here, nothing major at all. Highlights include: - remove the ashmem Android driver. It is long-dead and if there are any legacy userspace applications still using it, the Android kernel images will maintain it, the community shouldn't care about it anymore - wfx wifi driver major cleanups. Should be ready to merge out of staging soon, and will coordinate with the wifi maintainers after -rc1 is out - major cleanups and unwinding of the layers of the r8188eu driver. It's amazing just how many unneeded layers of abstraction is in there, just when we think it's done, another is found... - lots of tiny coding style cleanups in many other staging drivers. All have been in linux-next for a while with no reported problems" * tag 'staging-5.18-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/staging: (455 commits) staging: r8188eu: remove unnecessary memset in r8188eu staging: greybus: introduce pwm_ops::apply staging: rts5208: Resolve checkpatch.pl issues. staging: sm750fb: fix naming style staging: fbtft: Consider type of init sequence values in fbtft_init_display() staging: fbtft: Constify buf parameter in fbtft_dbg_hex() staging: mmal-vchiq: clear redundant item named bulk_scratch mips: dts: ralink: add MT7621 SoC staging: r8188eu: remove some unused local ieee80211 macros staging: r8188eu: make rtl8188e_process_phy_info static staging: r8188eu: remove unused function prototype staging: r8188eu: remove three unused receive defines staging: r8188eu: remove unnecessary initializations staging: rtl8192e: Fix spelling mistake "RESQUEST" -> "REQUEST" MAINTAINERS: remove the obsolete file entry for staging in ANDROID DRIVERS staging: r8188eu: proper error handling in rtw_init_drv_sw staging: r8188eu: call _cancel_timer_ex from _rtw_free_recv_priv staging: vt6656: Removed unused variable vt3342_vnt_threshold staging: vt6656: Removed unused variable bb_vga_0 staging: remove ashmem ...
2022-02-25staging: wfx: flags for SPI IRQ were ignoredJérôme Pouiller1-1/+1
The flags declared in the DT were not forwarded to request_irq(). Fixes: a7efb62509d8 ("staging: wfx: use threaded IRQ with SPI") Signed-off-by: Jérôme Pouiller <[email protected]> Link: https://lore.kernel.org/r/[email protected] Signed-off-by: Greg Kroah-Hartman <[email protected]>
2022-02-25staging: wfx: ensure HIF request has been sent before pollingJérôme Pouiller1-0/+1
wfx_bh_request_tx() send HIF request asynchronously through bh_work(). Then the caller will run wfx_bh_poll_irq() to poll the answer. However it useless to burn CPU cycles for the polling while the request has yet been sent. Worse, wfx_bh_poll_irq() may get the CPU and prevent wfx_bh_request_tx() to run. This problem has been observed on mono core architecture. This first exchange is correct: kworker/u2:1-24 [000] .... : io_read32: CONTROL: 00003000 kworker/u2:1-24 [000] .... : io_read32: CONTROL: 00003000 kworker/u2:1-24 [000] .... : io_read32: CONTROL: 00003004 kworker/u2:1-24 [000] .... : io_read32: CONTROL: 00003004 kworker/0:1H-40 [000] .... : io_read: QUEUE: 08 00 09 0c 00 00 00 00 3a 7b 00 30 (12 bytes) kworker/0:1H-40 [000] .... : piggyback: CONTROL: 00003000 kworker/0:1H-40 [000] .... : hif_recv: 0:2:CNF_CONFIGURATION: 00 00 00 00 (8 bytes) kworker/0:1H-40 [000] .... : io_read32: CONFIG: 03010200 kworker/0:1H-40 [000] .... : bh_stats: IND/REQ/CNF: 0/ 0/ 1, REQ in progress: 0, WUP: release ... while the following is not: kworker/u2:1-24 [000] .... : io_read32: CONTROL: 00003000 kworker/u2:1-24 [000] .... : io_read32: CONTROL: 00003000 kworker/u2:1-24 [000] .... : io_read32: CONTROL: 00003000 [...loop until timeout...] wfx-sdio mmc0:0001:1: time out while polling control register Signed-off-by: Jérôme Pouiller <[email protected]> Link: https://lore.kernel.org/r/[email protected] Signed-off-by: Greg Kroah-Hartman <[email protected]>
2022-02-25staging: wfx: prefer to wait for an event instead to sleepJérôme Pouiller1-2/+2
When possible it is better to wait for an explicit event instead of wait an arbitrary amount of time. Signed-off-by: Jérôme Pouiller <[email protected]> Link: https://lore.kernel.org/r/[email protected] Signed-off-by: Greg Kroah-Hartman <[email protected]>
2022-02-25staging: wfx: remove duplicated code in wfx_cmd_send()Jérôme Pouiller1-3/+3
The code to execute on end of the function is the same whatever the command replies or not. Signed-off-by: Jérôme Pouiller <[email protected]> Link: https://lore.kernel.org/r/[email protected] Signed-off-by: Greg Kroah-Hartman <[email protected]>
2022-02-25staging: wfx: drop useless includeJérôme Pouiller1-2/+0
ieee80211.h is useless since commit 5e911c3d9dbc9 ("staging: wfx: avoid defining array of flexible struct") Signed-off-by: Jérôme Pouiller <[email protected]> Link: https://lore.kernel.org/r/[email protected] Signed-off-by: Greg Kroah-Hartman <[email protected]>
2022-02-25staging: wfx: remove useless variableJérôme Pouiller1-2/+2
Obviously, the variable "ret" was useless. Signed-off-by: Jérôme Pouiller <[email protected]> Link: https://lore.kernel.org/r/[email protected] Signed-off-by: Greg Kroah-Hartman <[email protected]>
2022-02-25staging: wfx: format code on 100 columnsJérôme Pouiller7-20/+11
A few lines were not yet formatted on 100 columns. Signed-off-by: Jérôme Pouiller <[email protected]> Link: https://lore.kernel.org/r/[email protected] Signed-off-by: Greg Kroah-Hartman <[email protected]>
2022-02-25staging: wfx: format comments on 100 columnsJérôme Pouiller2-11/+6
A few comments were not yet formatted on 100 columns. Signed-off-by: Jérôme Pouiller <[email protected]> Link: https://lore.kernel.org/r/[email protected] Signed-off-by: Greg Kroah-Hartman <[email protected]>
2022-02-25staging: wfx: fix struct alignmentJérôme Pouiller1-14/+14
There is no reason to add multiple spaces between a variable name and its type. Signed-off-by: Jérôme Pouiller <[email protected]> Link: https://lore.kernel.org/r/[email protected] Signed-off-by: Greg Kroah-Hartman <[email protected]>
2022-02-25staging: wfx: sta.o was linked twiceJérôme Pouiller1-1/+0
sta.o was listed twice in the Makefile. Signed-off-by: Jérôme Pouiller <[email protected]> Link: https://lore.kernel.org/r/[email protected] Signed-off-by: Greg Kroah-Hartman <[email protected]>
2022-02-25staging: wfx: check the return value of devm_kmalloc()Xiaoke Wang1-0/+3
devm_kmalloc() returns a pointer to allocated memory on success, NULL on failure. While there is a memory allocation of devm_kmalloc() without proper check. It is better to check the return value of it to prevent wrong memory access. And I use the err label which is introduced by the previous patch to handle the error. Link: https://lore.kernel.org/r/[email protected] Reviewed-by: Dan Carpenter <[email protected]> Reviewed-by: Jérôme Pouiller <[email protected]> Signed-off-by: Xiaoke Wang <[email protected]> Link: https://lore.kernel.org/r/[email protected] Signed-off-by: Greg Kroah-Hartman <[email protected]>
2022-02-21staging: wfx: fix an error handling in wfx_init_common()Xiaoke Wang1-1/+6
One error handler of wfx_init_common() return without calling ieee80211_free_hw(hw), which may result in memory leak. And I add one err label to unify the error handler, which is useful for the subsequent changes. Suggested-by: Jérôme Pouiller <[email protected]> Reviewed-by: Dan Carpenter <[email protected]> Reviewed-by: Jérôme Pouiller <[email protected]> Signed-off-by: Xiaoke Wang <[email protected]> Link: https://lore.kernel.org/r/[email protected] Signed-off-by: Greg Kroah-Hartman <[email protected]>
2022-02-21staging: wfx: fix scan with WFM200 and WW regulationRiccardo Ferrazzo1-0/+1
Some variants of the WF200 disallow active scan on channel 12 and 13. For these parts, the channels 12 and 13 are marked IEEE80211_CHAN_NO_IR. However, the beacon hint procedure was removing the flag IEEE80211_CHAN_NO_IR from channels where a BSS is discovered. This was making subsequent scans to fail because the driver was trying active scans on prohibited channels. Signed-off-by: Riccardo Ferrazzo <[email protected]> Reviewed-by: Jérôme Pouiller <[email protected]> Signed-off-by: Jérôme Pouiller <[email protected]> Link: https://lore.kernel.org/r/[email protected] Signed-off-by: Greg Kroah-Hartman <[email protected]>
2022-02-17staging: wfx: Fix spelling mistake "unexpectly" -> "unexpectedly"Colin Ian King1-1/+1
There is a spelling mistake in a dev_warn message. Fix it. Signed-off-by: Colin Ian King <[email protected]> Link: https://lore.kernel.org/r/[email protected] Signed-off-by: Greg Kroah-Hartman <[email protected]>
2022-02-17staging: wfx: fix DT bindings locationJérôme Pouiller1-130/+0
Currently, the DT bindings the wfx driver cannot be processed by make dt_binding_check. We need to place it somewhere into Documentation/devicetree/bindings/. After that change, we are able to get warnings from dt_binding_check and fix them. Signed-off-by: Jérôme Pouiller <[email protected]> Link: https://lore.kernel.org/r/[email protected] Signed-off-by: Greg Kroah-Hartman <[email protected]>
2022-02-17staging: wfx: apply the necessary SDIO quirks for the Silabs WF200Jérôme Pouiller1-3/+0
Until now, the SDIO quirks are applied directly from the driver. However, it is better to apply the quirks before driver probing. So, this patch relocate the quirks in the MMC framework. Note that the WF200 has no valid SDIO VID/PID. Therefore, we match DT rather than on the SDIO VID/PID. Reviewed-by: Pali Rohár <[email protected]> Reviewed-by: Ulf Hansson <[email protected]> Signed-off-by: Jérôme Pouiller <[email protected]> Link: https://lore.kernel.org/r/[email protected] Signed-off-by: Greg Kroah-Hartman <[email protected]>
2022-02-17staging: wfx: WF200 has no official SDIO IDsJérôme Pouiller1-3/+2
Some may think that SDIO_VENDOR_ID_SILABS / SDIO_DEVICE_ID_SILABS_WF200 are official SDIO IDs. However, it is not the case, the values used by WF200 are not official (BTW, the driver rely on the DT rather than on the SDIO IDs to probe the device). To avoid any confusion, remove the definitions SDIO_*_ID_SILABS* and use raw values. Reviewed-by: Pali Rohár <[email protected]> Reviewed-by: Ulf Hansson <[email protected]> Signed-off-by: Jérôme Pouiller <[email protected]> Link: https://lore.kernel.org/r/[email protected] Signed-off-by: Greg Kroah-Hartman <[email protected]>
2022-02-15staging: wfx: remove support for legacy PDS formatJérôme Pouiller1-51/+4
We don't want to support legacy PDS format. Signed-off-by: Jérôme Pouiller <[email protected]> Link: https://lore.kernel.org/r/[email protected] Signed-off-by: Greg Kroah-Hartman <[email protected]>
2022-02-15staging: wfx: allow new PDS formatJérôme Pouiller1-17/+57
The device needs data about the antenna configuration. This information in provided by PDS (Platform Data Set, this is the wording used in WF200 documentation) files. Until now, the driver had to parse the PDS file before to send it. This solution was not acceptable for the vanilla kernel. We have slightly changed the PDS format so it is now an array of Type-Length-Value. This patch allows to support new format and keep compatibility with legacy format. Signed-off-by: Jérôme Pouiller <[email protected]> probe: allow new PDS format Link: https://lore.kernel.org/r/[email protected] Signed-off-by: Greg Kroah-Hartman <[email protected]>
2022-02-09spi: make remove callback a void functionUwe Kleine-König1-2/+1
The value returned by an spi driver's remove function is mostly ignored. (Only an error message is printed if the value is non-zero that the error is ignored.) So change the prototype of the remove function to return no value. This way driver authors are not tempted to assume that passing an error to the upper layer is a good idea. All drivers are adapted accordingly. There is no intended change of behaviour, all callbacks were prepared to return 0 before. Signed-off-by: Uwe Kleine-König <[email protected]> Acked-by: Marc Kleine-Budde <[email protected]> Acked-by: Andy Shevchenko <[email protected]> Reviewed-by: Geert Uytterhoeven <[email protected]> Acked-by: Jérôme Pouiller <[email protected]> Acked-by: Miquel Raynal <[email protected]> Acked-by: Jonathan Cameron <[email protected]> Acked-by: Claudius Heine <[email protected]> Acked-by: Stefan Schmidt <[email protected]> Acked-by: Alexandre Belloni <[email protected]> Acked-by: Ulf Hansson <[email protected]> # For MMC Acked-by: Marcus Folkesson <[email protected]> Acked-by: Łukasz Stelmach <[email protected]> Acked-by: Lee Jones <[email protected]> Link: https://lore.kernel.org/r/[email protected] Signed-off-by: Mark Brown <[email protected]>
2022-01-25staging: wfx: do not probe the device if not in the DTJérôme Pouiller2-15/+10
Since the WF200 VID/PID are not reliable, it's recommended to declare it in the DT. Until now, if the device was not declared, the driver just printed a warning and continue. But, the risk of a collision is too high, the driver now returns an error. Signed-off-by: Jérôme Pouiller <[email protected]> Link: https://lore.kernel.org/r/[email protected] Signed-off-by: Greg Kroah-Hartman <[email protected]>
2022-01-25staging: wfx: rename "config-file" DT attributeJérôme Pouiller2-5/+6
"config-file" is too broad. Replace it by "silabs,antenna-config-file" which is more explicit. The attribute "config-file" is probably not widely used. This patch obviously breaks setups that use this attribute. Signed-off-by: Jérôme Pouiller <[email protected]> Link: https://lore.kernel.org/r/[email protected] Signed-off-by: Greg Kroah-Hartman <[email protected]>
2022-01-25staging: wfx: drop legacy compatible valuesJérôme Pouiller4-22/+1
Values "silabs,wfx-sdio" and "silabs,wfx-spi" are deprecated for a while now. We take advantage of getting out of the staging tree to drop them and start from a blank sheet. Signed-off-by: Jérôme Pouiller <[email protected]> Link: https://lore.kernel.org/r/[email protected] Signed-off-by: Greg Kroah-Hartman <[email protected]>
2022-01-25staging: wfx: fix firmware locationJérôme Pouiller2-16/+16
There is currently, a mismatch between the location of the firmware in linux-firmware and the path written in the driver. We take this opportunity to relocate the WF200 firmware in wfx/ instead of silabs/. Signed-off-by: Jérôme Pouiller <[email protected]> Link: https://lore.kernel.org/r/[email protected] Signed-off-by: Greg Kroah-Hartman <[email protected]>
2022-01-25staging: wfx: map 'compatible' attribute with board nameJérôme Pouiller4-16/+83
"WF200" only designates the chip. To make a WiFi board, the chip must be associated with an antenna. The antenna configuration is located in separate files (aka PDS files in Silabs wording). Currently, user has to write in his DT something like: compatible = "silabs,wf200"; config = "brd4001a.pds"; It is far better to embed a list of known boards (chip + antenna) in the driver. So the user just have to declare: compatible = "silabs,brd4001a"; This patch add the configurations for the evaluation boards sold by Silabs. To provide a full plug-and-play experience, the associated PDS files[1] will be available in linux-firmware. This patch does not break compatibility with existing setups. Signed-off-by: Jérôme Pouiller <[email protected]> Link: https://lore.kernel.org/r/[email protected] Signed-off-by: Greg Kroah-Hartman <[email protected]>
2022-01-25staging: wfx: remove force_ps_timeoutJérôme Pouiller4-31/+2
ps_timeout should be in nl80211, not in debugfs. Let's remove it until the driver is accepted. Signed-off-by: Jérôme Pouiller <[email protected]> Link: https://lore.kernel.org/r/[email protected] Signed-off-by: Greg Kroah-Hartman <[email protected]>
2022-01-25staging: wfx: do not display functions names in logsJérôme Pouiller5-10/+6
It is not necessary to prefix error logs with the function name when an error message is unique in the code. Note this patch still prefixes the message 'received event for non-existent vif' with the function name since it is used several times. Signed-off-by: Jérôme Pouiller <[email protected]> Link: https://lore.kernel.org/r/[email protected] Signed-off-by: Greg Kroah-Hartman <[email protected]>
2022-01-25staging: wfx: replace compiletime_assert() by BUILD_BUG_ON_MSG()Jérôme Pouiller1-2/+2
It seems that BUILD_BUG_ON_MSG() is a bit more popular. Signed-off-by: Jérôme Pouiller <[email protected]> Link: https://lore.kernel.org/r/[email protected] Signed-off-by: Greg Kroah-Hartman <[email protected]>
2022-01-25staging: wfx: use explicit labels for errorsJérôme Pouiller2-21/+19
Prefer fully named labels to handle errors instead of err0, err1, ... Signed-off-by: Jérôme Pouiller <[email protected]> Link: https://lore.kernel.org/r/[email protected] Signed-off-by: Greg Kroah-Hartman <[email protected]>
2022-01-25staging: wfx: fix structs alignmentsJérôme Pouiller7-90/+90
Some structs members were not properly aligned. Signed-off-by: Jérôme Pouiller <[email protected]> Link: https://lore.kernel.org/r/[email protected] Signed-off-by: Greg Kroah-Hartman <[email protected]>
2022-01-25staging: wfx: reformat comments on 100 columnsJérôme Pouiller15-111/+79
Until now, this driver was written in 80 columns style. However, since all the functions are prefixed with "wfx_", this constraint is no more respected in the last patches. From the perspective of kernel Coding Style, it is not a problem since it is now allowed to write code on 100 columns. This patch just unify the code to use 100 columns in every comments. Signed-off-by: Jérôme Pouiller <[email protected]> Link: https://lore.kernel.org/r/[email protected] Signed-off-by: Greg Kroah-Hartman <[email protected]>
2022-01-25staging: wfx: reformat code on 100 columnsJérôme Pouiller27-506/+269
Until now, this driver was written in 80 columns style. However, since all the functions are prefixed with "wfx_", this constraint is no more respected in the last patches. From the perspective of kernel Coding Style, it is not a problem since it is now allowed to write code on 100 columns. This patch just unify the code to use 100 columns. Signed-off-by: Jérôme Pouiller <[email protected]> Link: https://lore.kernel.org/r/[email protected] Signed-off-by: Greg Kroah-Hartman <[email protected]>
2022-01-25staging: wfx: prefix structs tx_policy and hwbus_ops with wfx_Jérôme Pouiller9-35/+35
All the types related to a driver should use the same prefix. Signed-off-by: Jérôme Pouiller <[email protected]> Link: https://lore.kernel.org/r/[email protected] Signed-off-by: Greg Kroah-Hartman <[email protected]>
2022-01-25staging: wfx: prefix structs hif_* with wfx_Jérôme Pouiller21-309/+311
All the types related to a driver should use the same prefix. Signed-off-by: Jérôme Pouiller <[email protected]> Link: https://lore.kernel.org/r/[email protected] Signed-off-by: Greg Kroah-Hartman <[email protected]>
2022-01-25staging: wfx: prefix tx_policy_is_equal() with wfx_Jérôme Pouiller1-4/+4
tx_policy_is_equal() was the only function from data_tx.c without the prefix wfx_. Signed-off-by: Jérôme Pouiller <[email protected]> Link: https://lore.kernel.org/r/[email protected] Signed-off-by: Greg Kroah-Hartman <[email protected]>
2022-01-25staging: wfx: prefix functions from debug.h with wfx_Jérôme Pouiller3-10/+10
All the functions related to a driver should use the same prefix. Signed-off-by: Jérôme Pouiller <[email protected]> Link: https://lore.kernel.org/r/[email protected] Signed-off-by: Greg Kroah-Hartman <[email protected]>
2022-01-25staging: wfx: prefix functions from hwio.h with wfx_Jérôme Pouiller6-124/+133
All the functions related to a driver should use the same prefix. Signed-off-by: Jérôme Pouiller <[email protected]> Link: https://lore.kernel.org/r/[email protected] Signed-off-by: Greg Kroah-Hartman <[email protected]>
2022-01-25staging: wfx: prefix functions from hif_*.h with wfx_Jérôme Pouiller11-274/+291
All the functions related to a driver should use the same prefix. Signed-off-by: Jérôme Pouiller <[email protected]> Link: https://lore.kernel.org/r/[email protected] Signed-off-by: Greg Kroah-Hartman <[email protected]>
2022-01-25staging: wfx: fix ambiguous function nameJérôme Pouiller1-2/+2
The prefix 'ieee80211' is reserved for mac80211. It should not been used. Signed-off-by: Jérôme Pouiller <[email protected]> Link: https://lore.kernel.org/r/[email protected] Signed-off-by: Greg Kroah-Hartman <[email protected]>
2022-01-25staging: wfx: fix ambiguous function nameJérôme Pouiller1-3/+3
The prefix 'ieee80211' is reserved for mac80211. It should not been used. Signed-off-by: Jérôme Pouiller <[email protected]> Link: https://lore.kernel.org/r/[email protected] Signed-off-by: Greg Kroah-Hartman <[email protected]>
2022-01-25staging: wfx: preserve endianness of struct hif_ind_startupJérôme Pouiller4-19/+10
The hardware fills struct hif_ind_startup with little endian values. So, declare it with little endian fields. It is now a bit more verbose to access to fields of struct hif_ind_startup, but it is less confusing. Signed-off-by: Jérôme Pouiller <[email protected]> Link: https://lore.kernel.org/r/[email protected] Signed-off-by: Greg Kroah-Hartman <[email protected]>
2022-01-25stagigg: wfx: replace magic number by HIF_ID_IS_INDICATIONJérôme Pouiller1-1/+1
Magic values are not recommended. Signed-off-by: Jérôme Pouiller <[email protected]> Link: https://lore.kernel.org/r/[email protected] Signed-off-by: Greg Kroah-Hartman <[email protected]>
2022-01-25staging: wfx: replace magic value by WFX_HIF_BUFFER_SIZEJérôme Pouiller1-2/+4
Magic values are not recommended. Signed-off-by: Jérôme Pouiller <[email protected]> Link: https://lore.kernel.org/r/[email protected] Signed-off-by: Greg Kroah-Hartman <[email protected]>
2022-01-25staging: wfx: use IS_ALIGNED()Jérôme Pouiller2-6/+8
It "IS_ALIGNED(ptr, 4)" is more explicit than "ptr & 3". Signed-off-by: Jérôme Pouiller <[email protected]> Link: https://lore.kernel.org/r/[email protected] Signed-off-by: Greg Kroah-Hartman <[email protected]>
2022-01-25staging: wfx: remove useless #ifdefJérôme Pouiller1-6/+0
In the old days, this file was shared with other projects. Obviously, this "#ifdef __KERNEL__" have no reasons to be in the kernel. Signed-off-by: Jérôme Pouiller <[email protected]> Link: https://lore.kernel.org/r/[email protected] Signed-off-by: Greg Kroah-Hartman <[email protected]>
2022-01-25staging: wfx: remove unnecessary bracesJérôme Pouiller1-3/+2
Braces are not necessary for single statement blocks Signed-off-by: Jérôme Pouiller <[email protected]> Link: https://lore.kernel.org/r/[email protected] Signed-off-by: Greg Kroah-Hartman <[email protected]>
2022-01-25staging: wfx: explain uncommon Makefile statementJérôme Pouiller1-0/+1
I have got questions about this line from several reviewers. A comment is definitively welcome. Signed-off-by: Jérôme Pouiller <[email protected]> Link: https://lore.kernel.org/r/[email protected] Signed-off-by: Greg Kroah-Hartman <[email protected]>
2022-01-25staging: wfx: fix comment correctnessJérôme Pouiller2-12/+4
Using DMA with stack allocated buffers is not supported, whatever the value of CONFIG_VMAP_STACK. Signed-off-by: Jérôme Pouiller <[email protected]> Link: https://lore.kernel.org/r/[email protected] Signed-off-by: Greg Kroah-Hartman <[email protected]>
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