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2022-12-02Input: cyttsp5: Convert to i2c's .probe_new()Uwe Kleine-König
The probe function doesn't make use of the i2c_device_id * parameter so it can be trivially converted. Signed-off-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de> Link: https://lore.kernel.org/r/20221118224540.619276-236-uwe@kleine-koenig.org Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
2022-12-02Input: cyttsp4 - Convert to i2c's .probe_new()Uwe Kleine-König
The probe function doesn't make use of the i2c_device_id * parameter so it can be trivially converted. Signed-off-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de> Link: https://lore.kernel.org/r/20221118224540.619276-235-uwe@kleine-koenig.org Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
2022-12-02Input: cy8ctmg110_ts - Convert to i2c's .probe_new()Uwe Kleine-König
The probe function doesn't make use of the i2c_device_id * parameter so it can be trivially converted. Signed-off-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de> Link: https://lore.kernel.org/r/20221118224540.619276-234-uwe@kleine-koenig.org Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
2022-12-02Input: cy8ctma140 - Convert to i2c's .probe_new()Uwe Kleine-König
The probe function doesn't make use of the i2c_device_id * parameter so it can be trivially converted. Signed-off-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de> Link: https://lore.kernel.org/r/20221118224540.619276-233-uwe@kleine-koenig.org Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
2022-12-02Input: chipone_icn8318 - Convert to i2c's .probe_new()Uwe Kleine-König
The probe function doesn't make use of the i2c_device_id * parameter so it can be trivially converted. Signed-off-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de> Reviewed-by: Hans de Goede <hdegoede@redhat.com> Link: https://lore.kernel.org/r/20221118224540.619276-232-uwe@kleine-koenig.org Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
2022-12-02Input: bu21029_ts - Convert to i2c's .probe_new()Uwe Kleine-König
The probe function doesn't make use of the i2c_device_id * parameter so it can be trivially converted. Signed-off-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de> Link: https://lore.kernel.org/r/20221118224540.619276-231-uwe@kleine-koenig.org Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
2022-12-02Input: bu21013_ts - Convert to i2c's .probe_new()Uwe Kleine-König
The probe function doesn't make use of the i2c_device_id * parameter so it can be trivially converted. Signed-off-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de> Link: https://lore.kernel.org/r/20221118224540.619276-230-uwe@kleine-koenig.org Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
2022-12-02Input: auo-pixcir-ts - Convert to i2c's .probe_new()Uwe Kleine-König
The probe function doesn't make use of the i2c_device_id * parameter so it can be trivially converted. Signed-off-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de> Reviewed-by: Heiko Stuebner <heiko@sntech.de> Link: https://lore.kernel.org/r/20221118224540.619276-229-uwe@kleine-koenig.org Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
2022-12-02Input: atmel_mxt_ts - Convert to i2c's .probe_new()Uwe Kleine-König
The probe function doesn't make use of the i2c_device_id * parameter so it can be trivially converted. Signed-off-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de> Link: https://lore.kernel.org/r/20221118224540.619276-228-uwe@kleine-koenig.org Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
2022-12-02Input: ar1021_i2c - Convert to i2c's .probe_new()Uwe Kleine-König
The probe function doesn't make use of the i2c_device_id * parameter so it can be trivially converted. Signed-off-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de> Link: https://lore.kernel.org/r/20221118224540.619276-227-uwe@kleine-koenig.org Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
2022-12-02Input: ad7879-i2c - Convert to i2c's .probe_new()Uwe Kleine-König
The probe function doesn't make use of the i2c_device_id * parameter so it can be trivially converted. Signed-off-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de> Link: https://lore.kernel.org/r/20221118224540.619276-226-uwe@kleine-koenig.org Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
2022-12-02Input: rmi_smbus - Convert to i2c's .probe_new()Uwe Kleine-König
The probe function doesn't make use of the i2c_device_id * parameter so it can be trivially converted. Signed-off-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de> Link: https://lore.kernel.org/r/20221118224540.619276-225-uwe@kleine-koenig.org Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
2022-12-02Input: rmi_i2c - Convert to i2c's .probe_new()Uwe Kleine-König
The probe function doesn't make use of the i2c_device_id * parameter so it can be trivially converted. Signed-off-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de> Link: https://lore.kernel.org/r/20221118224540.619276-224-uwe@kleine-koenig.org Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
2022-12-02Input: synaptics_i2c - Convert to i2c's .probe_new()Uwe Kleine-König
The probe function doesn't make use of the i2c_device_id * parameter so it can be trivially converted. Signed-off-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de> Link: https://lore.kernel.org/r/20221118224540.619276-223-uwe@kleine-koenig.org Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
2022-12-02Input: elan_i2c_core - Convert to i2c's .probe_new()Uwe Kleine-König
The probe function doesn't make use of the i2c_device_id * parameter so it can be trivially converted. Signed-off-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de> Reviewed-by: Hans de Goede <hdegoede@redhat.com> Link: https://lore.kernel.org/r/20221118224540.619276-222-uwe@kleine-koenig.org Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
2022-12-02Input: cyapa - Convert to i2c's .probe_new()Uwe Kleine-König
The probe function doesn't make use of the i2c_device_id * parameter so it can be trivially converted. Signed-off-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de> Link: https://lore.kernel.org/r/20221118224540.619276-221-uwe@kleine-koenig.org Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
2022-12-02Input: pcf8574_keypad - Convert to i2c's .probe_new()Uwe Kleine-König
The probe function doesn't make use of the i2c_device_id * parameter so it can be trivially converted. Signed-off-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de> Link: https://lore.kernel.org/r/20221118224540.619276-220-uwe@kleine-koenig.org Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
2022-12-02Input: mma8450 - Convert to i2c's .probe_new()Uwe Kleine-König
The probe function doesn't make use of the i2c_device_id * parameter so it can be trivially converted. Signed-off-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de> Link: https://lore.kernel.org/r/20221118224540.619276-219-uwe@kleine-koenig.org Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
2022-12-02Input: kxtj9 - Convert to i2c's .probe_new()Uwe Kleine-König
The probe function doesn't make use of the i2c_device_id * parameter so it can be trivially converted. Signed-off-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de> Link: https://lore.kernel.org/r/20221118224540.619276-218-uwe@kleine-koenig.org Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
2022-12-02Input: ibm-panel - Convert to i2c's .probe_new()Uwe Kleine-König
The probe function doesn't make use of the i2c_device_id * parameter so it can be trivially converted. Signed-off-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de> Link: https://lore.kernel.org/r/20221118224540.619276-217-uwe@kleine-koenig.org Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
2022-12-02Input: drv2667 - Convert to i2c's .probe_new()Uwe Kleine-König
The probe function doesn't make use of the i2c_device_id * parameter so it can be trivially converted. Signed-off-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de> Link: https://lore.kernel.org/r/20221118224540.619276-216-uwe@kleine-koenig.org Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
2022-12-02Input: drv2665 - Convert to i2c's .probe_new()Uwe Kleine-König
The probe function doesn't make use of the i2c_device_id * parameter so it can be trivially converted. Signed-off-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de> Link: https://lore.kernel.org/r/20221118224540.619276-215-uwe@kleine-koenig.org Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
2022-12-02Input: drv260x - Convert to i2c's .probe_new()Uwe Kleine-König
The probe function doesn't make use of the i2c_device_id * parameter so it can be trivially converted. Signed-off-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de> Link: https://lore.kernel.org/r/20221118224540.619276-214-uwe@kleine-koenig.org Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
2022-12-02Input: da7280 - Convert to i2c's .probe_new()Uwe Kleine-König
The probe function doesn't make use of the i2c_device_id * parameter so it can be trivially converted. Signed-off-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de> Link: https://lore.kernel.org/r/20221118224540.619276-213-uwe@kleine-koenig.org Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
2022-12-02Input: cma3000_d0x_i2c - Convert to i2c's .probe_new()Uwe Kleine-König
The probe function doesn't make use of the i2c_device_id * parameter so it can be trivially converted. Signed-off-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de> Link: https://lore.kernel.org/r/20221118224540.619276-212-uwe@kleine-koenig.org Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
2022-12-02Input: bma150 - Convert to i2c's .probe_new()Uwe Kleine-König
The probe function doesn't make use of the i2c_device_id * parameter so it can be trivially converted. Signed-off-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de> Link: https://lore.kernel.org/r/20221118224540.619276-211-uwe@kleine-koenig.org Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
2022-12-02Input: atmel_captouch - Convert to i2c's .probe_new()Uwe Kleine-König
The probe function doesn't make use of the i2c_device_id * parameter so it can be trivially converted. Signed-off-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de> Link: https://lore.kernel.org/r/20221118224540.619276-210-uwe@kleine-koenig.org Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
2022-12-02Input: apanel - Convert to i2c's .probe_new()Uwe Kleine-König
The probe function doesn't make use of the i2c_device_id * parameter so it can be trivially converted. Signed-off-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de> Link: https://lore.kernel.org/r/20221118224540.619276-209-uwe@kleine-koenig.org Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
2022-12-02Input: adxl34x-i2c - Convert to i2c's .probe_new()Uwe Kleine-König
The probe function doesn't make use of the i2c_device_id * parameter so it can be trivially converted. Signed-off-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de> Link: https://lore.kernel.org/r/20221118224540.619276-208-uwe@kleine-koenig.org Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
2022-12-02Input: ad714x-i2c - Convert to i2c's .probe_new()Uwe Kleine-König
The probe function doesn't make use of the i2c_device_id * parameter so it can be trivially converted. Signed-off-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de> Link: https://lore.kernel.org/r/20221118224540.619276-207-uwe@kleine-koenig.org Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
2022-12-02Input: tm2-touchkey - Convert to i2c's .probe_new()Uwe Kleine-König
The probe function doesn't make use of the i2c_device_id * parameter so it can be trivially converted. Signed-off-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de> Link: https://lore.kernel.org/r/20221118224540.619276-206-uwe@kleine-koenig.org Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
2022-12-02Input: tca8418_keypad - Convert to i2c's .probe_new()Uwe Kleine-König
The probe function doesn't make use of the i2c_device_id * parameter so it can be trivially converted. Signed-off-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de> Link: https://lore.kernel.org/r/20221118224540.619276-205-uwe@kleine-koenig.org Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
2022-12-02Input: tca6416-keypad - Convert to i2c's .probe_new()Uwe Kleine-König
.probe_new() doesn't get the i2c_device_id * parameter, so determine that explicitly in the probe function. Signed-off-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de> Link: https://lore.kernel.org/r/20221118224540.619276-204-uwe@kleine-koenig.org Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
2022-12-02Input: qt2160 - Convert to i2c's .probe_new()Uwe Kleine-König
The probe function doesn't make use of the i2c_device_id * parameter so it can be trivially converted. Signed-off-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de> Link: https://lore.kernel.org/r/20221118224540.619276-203-uwe@kleine-koenig.org Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
2022-12-02Input: qt1070 - Convert to i2c's .probe_new()Uwe Kleine-König
The probe function doesn't make use of the i2c_device_id * parameter so it can be trivially converted. Signed-off-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de> Link: https://lore.kernel.org/r/20221118224540.619276-202-uwe@kleine-koenig.org Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
2022-12-02Input: mpr121_touchkey - Convert to i2c's .probe_new()Uwe Kleine-König
The probe function doesn't make use of the i2c_device_id * parameter so it can be trivially converted. Signed-off-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de> Link: https://lore.kernel.org/r/20221118224540.619276-201-uwe@kleine-koenig.org Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
2022-12-02Input: mcs_touchkey - Convert to i2c's .probe_new()Uwe Kleine-König
.probe_new() doesn't get the i2c_device_id * parameter, so determine that explicitly in the probe function. Signed-off-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de> Link: https://lore.kernel.org/r/20221118224540.619276-200-uwe@kleine-koenig.org Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
2022-12-02Input: max7359_keypad - Convert to i2c's .probe_new()Uwe Kleine-König
The probe function doesn't make use of the i2c_device_id * parameter so it can be trivially converted. Signed-off-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de> Link: https://lore.kernel.org/r/20221118224540.619276-199-uwe@kleine-koenig.org Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
2022-12-02Input: lm8333 - Convert to i2c's .probe_new()Uwe Kleine-König
The probe function doesn't make use of the i2c_device_id * parameter so it can be trivially converted. Signed-off-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de> Link: https://lore.kernel.org/r/20221118224540.619276-198-uwe@kleine-koenig.org Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
2022-12-02Input: lm8323 - Convert to i2c's .probe_new()Uwe Kleine-König
The probe function doesn't make use of the i2c_device_id * parameter so it can be trivially converted. Signed-off-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de> Link: https://lore.kernel.org/r/20221118224540.619276-197-uwe@kleine-koenig.org Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
2022-12-02Input: dlink-dir685-touchkeys - Convert to i2c's .probe_new()Uwe Kleine-König
The probe function doesn't make use of the i2c_device_id * parameter so it can be trivially converted. Signed-off-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de> Link: https://lore.kernel.org/r/20221118224540.619276-196-uwe@kleine-koenig.org Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
2022-12-02Input: cap11xx - Convert to i2c's .probe_new()Uwe Kleine-König
.probe_new() doesn't get the i2c_device_id * parameter, so determine that explicitly in the probe function. Signed-off-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de> Link: https://lore.kernel.org/r/20221118224540.619276-195-uwe@kleine-koenig.org Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
2022-12-02Input: adp5589-keys - Convert to i2c's .probe_new()Uwe Kleine-König
.probe_new() doesn't get the i2c_device_id * parameter, so determine that explicitly in the probe function. Signed-off-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de> Link: https://lore.kernel.org/r/20221118224540.619276-194-uwe@kleine-koenig.org Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
2022-12-02Input: adp5588-keys - Convert to i2c's .probe_new()Uwe Kleine-König
The probe function doesn't make use of the i2c_device_id * parameter so it can be trivially converted. Signed-off-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de> Acked-by: Michael Hennerich <michael.hennerich@analog.com> Link: https://lore.kernel.org/r/20221118224540.619276-193-uwe@kleine-koenig.org Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
2022-12-02Input: as5011 - Convert to i2c's .probe_new()Uwe Kleine-König
The probe function doesn't make use of the i2c_device_id * parameter so it can be trivially converted. Signed-off-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de> Link: https://lore.kernel.org/r/20221118224540.619276-192-uwe@kleine-koenig.org Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
2022-12-02Merge branch 'i2c/client_device_id_helper-immutable' of ↵Dmitry Torokhov
https://git.kernel.org/pub/scm/linux/kernel/git/wsa/linux into next Bring in i2c_client_get_device_id() helper in order to apply patches converting I2C input devices to probe_new().
2022-12-02dm init: add dm-mod.waitfor to wait for asynchronously probed block devicesPeter Korsgaard
Just calling wait_for_device_probe() is not enough to ensure that asynchronously probed block devices are available (E.G. mmc, usb), so add a "dm-mod.waitfor=<device1>[,..,<deviceN>]" parameter to get dm-init to explicitly wait for specific block devices before initializing the tables with logic similar to the rootwait logic that was introduced with commit cc1ed7542c8c ("init: wait for asynchronously scanned block devices"). E.G. with dm-verity on mmc using: dm-mod.waitfor="PARTLABEL=hash-a,PARTLABEL=root-a" [ 0.671671] device-mapper: init: waiting for all devices to be available before creating mapped devices [ 0.671679] device-mapper: init: waiting for device PARTLABEL=hash-a ... [ 0.710695] mmc0: new HS200 MMC card at address 0001 [ 0.711158] mmcblk0: mmc0:0001 004GA0 3.69 GiB [ 0.715954] mmcblk0boot0: mmc0:0001 004GA0 partition 1 2.00 MiB [ 0.722085] mmcblk0boot1: mmc0:0001 004GA0 partition 2 2.00 MiB [ 0.728093] mmcblk0rpmb: mmc0:0001 004GA0 partition 3 512 KiB, chardev (249:0) [ 0.738274] mmcblk0: p1 p2 p3 p4 p5 p6 p7 [ 0.751282] device-mapper: init: waiting for device PARTLABEL=root-a ... [ 0.751306] device-mapper: init: all devices available [ 0.751683] device-mapper: verity: sha256 using implementation "sha256-generic" [ 0.759344] device-mapper: ioctl: dm-0 (vroot) is ready [ 0.766540] VFS: Mounted root (squashfs filesystem) readonly on device 254:0. Signed-off-by: Peter Korsgaard <peter@korsgaard.com> Signed-off-by: Mike Snitzer <snitzer@kernel.org>
2022-12-02binfmt_misc: fix shift-out-of-bounds in check_special_flagsLiu Shixin
UBSAN reported a shift-out-of-bounds warning: left shift of 1 by 31 places cannot be represented in type 'int' Call Trace: <TASK> __dump_stack lib/dump_stack.c:88 [inline] dump_stack_lvl+0x8d/0xcf lib/dump_stack.c:106 ubsan_epilogue+0xa/0x44 lib/ubsan.c:151 __ubsan_handle_shift_out_of_bounds+0x1e7/0x208 lib/ubsan.c:322 check_special_flags fs/binfmt_misc.c:241 [inline] create_entry fs/binfmt_misc.c:456 [inline] bm_register_write+0x9d3/0xa20 fs/binfmt_misc.c:654 vfs_write+0x11e/0x580 fs/read_write.c:582 ksys_write+0xcf/0x120 fs/read_write.c:637 do_syscall_x64 arch/x86/entry/common.c:50 [inline] do_syscall_64+0x34/0x80 arch/x86/entry/common.c:80 entry_SYSCALL_64_after_hwframe+0x63/0xcd RIP: 0033:0x4194e1 Since the type of Node's flags is unsigned long, we should define these macros with same type too. Signed-off-by: Liu Shixin <liushixin2@huawei.com> Signed-off-by: Kees Cook <keescook@chromium.org> Link: https://lore.kernel.org/r/20221102025123.1117184-1-liushixin2@huawei.com
2022-12-02Merge tag 'mm-hotfixes-stable-2022-12-02' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm Pull misc hotfixes from Andrew Morton: "15 hotfixes, 11 marked cc:stable. Only three or four of the latter address post-6.0 issues, which is hopefully a sign that things are converging" * tag 'mm-hotfixes-stable-2022-12-02' of git://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm: revert "kbuild: fix -Wimplicit-function-declaration in license_is_gpl_compatible" Kconfig.debug: provide a little extra FRAME_WARN leeway when KASAN is enabled drm/amdgpu: temporarily disable broken Clang builds due to blown stack-frame mm/khugepaged: invoke MMU notifiers in shmem/file collapse paths mm/khugepaged: fix GUP-fast interaction by sending IPI mm/khugepaged: take the right locks for page table retraction mm: migrate: fix THP's mapcount on isolation mm: introduce arch_has_hw_nonleaf_pmd_young() mm: add dummy pmd_young() for architectures not having it mm/damon/sysfs: fix wrong empty schemes assumption under online tuning in damon_sysfs_set_schemes() tools/vm/slabinfo-gnuplot: use "grep -E" instead of "egrep" nilfs2: fix NULL pointer dereference in nilfs_palloc_commit_free_entry() hugetlb: don't delete vma_lock in hugetlb MADV_DONTNEED processing madvise: use zap_page_range_single for madvise dontneed mm: replace VM_WARN_ON to pr_warn if the node is offline with __GFP_THISNODE
2022-12-02v4l2: don't fall back to follow_pfn() if pin_user_pages_fast() failsLinus Torvalds
The V4L2_MEMORY_USERPTR interface is long deprecated and shouldn't be used (and is discouraged for any modern v4l drivers). And Seth Jenkins points out that the fallback to VM_PFNMAP/VM_IO is fundamentally racy and dangerous. Note that it's not even a case that should trigger, since any normal user pointer logic ends up just using the pin_user_pages_fast() call that does the proper page reference counting. That's not the problem case, only if you try to use special device mappings do you have any issues. Normally I'd just remove this during the merge window, but since Seth pointed out the problem cases, we really want to know as soon as possible if there are actually any users of this odd special case of a legacy interface. Neither Hans nor Mauro seem to think that such mis-uses of the old legacy interface should exist. As Mauro says: "See, V4L2 has actually 4 streaming APIs: - Kernel-allocated mmap (usually referred simply as just mmap); - USERPTR mmap; - read(); - dmabuf; The USERPTR is one of the oldest way to use it, coming from V4L version 1 times, and by far the least used one" And Hans chimed in on the USERPTR interface: "To be honest, I wouldn't mind if it goes away completely, but that's a bit of a pipe dream right now" but while removing this legacy interface entirely may be a pipe dream we can at least try to remove the unlikely (and actively broken) case of using special device mappings for USERPTR accesses. This replaces it with a WARN_ONCE() that we can remove once we've hopefully confirmed that no actual users exist. NOTE! Longer term, this means that a 'struct frame_vector' only ever contains proper page pointers, and all the games we have with converting them to pages can go away (grep for 'frame_vector_to_pages()' and the uses of 'vec->is_pfns'). But this is just the first step, to verify that this code really is all dead, and do so as quickly as possible. Reported-by: Seth Jenkins <sethjenkins@google.com> Acked-by: Hans Verkuil <hverkuil@xs4all.nl> Acked-by: Mauro Carvalho Chehab <mchehab@kernel.org> Cc: David Hildenbrand <david@redhat.com> Cc: Jan Kara <jack@suse.cz> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>