linux/drivers/staging, branch v5.6

Merge tag 'staging-5.6-rc7' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/staging

2020-03-20T16:20:38Z

Pull staging/IIO fixes from Greg KH: "Here are a number of small staging and IIO driver fixes for 5.6-rc7 Nothing major here, just resolutions for some reported problems: - iio bugfixes for a number of different drivers - greybus loopback_test fixes - wfx driver fixes All of these have been in linux-next with no reported issues" * tag 'staging-5.6-rc7' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/staging: staging: rtl8188eu: Add device id for MERCUSYS MW150US v2 staging: greybus: loopback_test: fix potential path truncations staging: greybus: loopback_test: fix potential path truncation staging: greybus: loopback_test: fix poll-mask build breakage staging: wfx: fix RCU usage between hif_join() and ieee80211_bss_get_ie() staging: wfx: fix RCU usage in wfx_join_finalize() staging: wfx: make warning about pending frame less scary staging: wfx: fix lines ending with a comma instead of a semicolon staging: wfx: fix warning about freeing in-use mutex during device unregister staging/speakup: fix get_word non-space look-ahead iio: ping: set pa_laser_ping_cfg in of_ping_match iio: chemical: sps30: fix missing triggered buffer dependency iio: st_sensors: remap SMO8840 to LIS2DH12 iio: light: vcnl4000: update sampling periods for vcnl4040 iio: light: vcnl4000: update sampling periods for vcnl4200 iio: accel: adxl372: Set iio_chan BE iio: magnetometer: ak8974: Fix negative raw values in sysfs iio: trigger: stm32-timer: disable master mode when stopping iio: adc: stm32-dfsdm: fix sleep in atomic context iio: adc: at91-sama5d2_adc: fix differential channels in triggered mode

staging: rtl8188eu: Add device id for MERCUSYS MW150US v2

2020-03-17T13:17:32Z

This device was added to the stand-alone driver on github. Add it to the staging driver as well. Link: https://github.com/lwfinger/rtl8188eu/commit/2141f244c3e7 Signed-off-by: Michael Straube Cc: stable Link: https://lore.kernel.org/r/20200312093652.13918-1-straube.linux@gmail.com Signed-off-by: Greg Kroah-Hartman

staging: greybus: loopback_test: fix potential path truncations

2020-03-17T13:17:32Z

Newer GCC warns about possible truncations of two generated path names as we're concatenating the configurable sysfs and debugfs path prefixes with a filename and placing the results in buffers of the same size as the maximum length of the prefixes. snprintf(d->name, MAX_STR_LEN, "gb_loopback%u", dev_id); snprintf(d->sysfs_entry, MAX_SYSFS_PATH, "%s%s/", t->sysfs_prefix, d->name); snprintf(d->debugfs_entry, MAX_SYSFS_PATH, "%sraw_latency_%s", t->debugfs_prefix, d->name); Fix this by separating the maximum path length from the maximum prefix length and reducing the latter enough to fit the generated strings. Note that we also need to reduce the device-name buffer size as GCC isn't smart enough to figure out that we ever only used MAX_STR_LEN bytes of it. Fixes: 6b0658f68786 ("greybus: tools: Add tools directory to greybus repo and add loopback") Signed-off-by: Johan Hovold Link: https://lore.kernel.org/r/20200312110151.22028-4-johan@kernel.org Signed-off-by: Greg Kroah-Hartman

staging: greybus: loopback_test: fix potential path truncation

2020-03-17T13:17:32Z

Newer GCC warns about a possible truncation of a generated sysfs path name as we're concatenating a directory path with a file name and placing the result in a buffer that is half the size of the maximum length of the directory path (which is user controlled). loopback_test.c: In function 'open_poll_files': loopback_test.c:651:31: warning: '%s' directive output may be truncated writing up to 511 bytes into a region of size 255 [-Wformat-truncation=] 651 | snprintf(buf, sizeof(buf), "%s%s", dev->sysfs_entry, "iteration_count"); | ^~ loopback_test.c:651:3: note: 'snprintf' output between 16 and 527 bytes into a destination of size 255 651 | snprintf(buf, sizeof(buf), "%s%s", dev->sysfs_entry, "iteration_count"); | ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ Fix this by making sure the buffer is large enough the concatenated strings. Fixes: 6b0658f68786 ("greybus: tools: Add tools directory to greybus repo and add loopback") Fixes: 9250c0ee2626 ("greybus: Loopback_test: use poll instead of inotify") Signed-off-by: Johan Hovold Link: https://lore.kernel.org/r/20200312110151.22028-3-johan@kernel.org Signed-off-by: Greg Kroah-Hartman

staging: greybus: loopback_test: fix poll-mask build breakage

2020-03-17T13:17:32Z

A scripted conversion from userland POLL* to kernel EPOLL* constants mistakingly replaced the poll flags in the loopback_test tool, which therefore no longer builds. Fixes: a9a08845e9ac ("vfs: do bulk POLL* -> EPOLL* replacement") Cc: stable # 4.16 Signed-off-by: Johan Hovold Link: https://lore.kernel.org/r/20200312110151.22028-2-johan@kernel.org Signed-off-by: Greg Kroah-Hartman

staging: wfx: fix RCU usage between hif_join() and ieee80211_bss_get_ie()

2020-03-11T07:14:16Z

Access to result of ieee80211_bss_get_ie() is protected by RCU. In other hand, function hif_join() can sleep and cannot be called with RCU locked. Provide a copy of "ssidie" to hif_join() to solve this behavior. Fixes: 9ced9b593741 ("staging: wfx: simplify hif_join()") Signed-off-by: Jérôme Pouiller Link: https://lore.kernel.org/r/20200310101356.182818-6-Jerome.Pouiller@silabs.com Signed-off-by: Greg Kroah-Hartman

staging: wfx: fix RCU usage in wfx_join_finalize()

2020-03-11T07:14:16Z

Access to sta->ht_cap is protected by RCU. However, hif_set_association_mode() may sleep, so it can't be called in RCU. This patch fix this behavior by handling sta and its RCU directly from function hif_set_association_mode(). Signed-off-by: Jérôme Pouiller Fixes: d00149011066 ("staging: wfx: fix RCU usage") Link: https://lore.kernel.org/r/20200310101356.182818-5-Jerome.Pouiller@silabs.com Signed-off-by: Greg Kroah-Hartman

staging: wfx: make warning about pending frame less scary

2020-03-11T07:14:16Z

Removing station while some traffic is in progress may happen. Signed-off-by: Jérôme Pouiller Link: https://lore.kernel.org/r/20200310101356.182818-4-Jerome.Pouiller@silabs.com Signed-off-by: Greg Kroah-Hartman

staging: wfx: fix lines ending with a comma instead of a semicolon

2020-03-11T07:14:16Z

Obviously introduced by mistake. Fixes: 09779276f1ba ("staging: wfx: simplify hif_start() usage") Signed-off-by: Jérôme Pouiller Link: https://lore.kernel.org/r/20200310101356.182818-3-Jerome.Pouiller@silabs.com Signed-off-by: Greg Kroah-Hartman

staging: wfx: fix warning about freeing in-use mutex during device unregister

2020-03-11T07:14:16Z

After hif_shutdown(), communication with the chip is no more possible. It the only request that never reply. Therefore, hif_cmd.lock is never unlocked. hif_shutdown() unlock itself hif_cmd.lock to avoid a potential warning during disposal of device. hif_cmd.key_renew_lock should also been unlocked for the same reason. Signed-off-by: Jérôme Pouiller Link: https://lore.kernel.org/r/20200310101356.182818-2-Jerome.Pouiller@silabs.com Signed-off-by: Greg Kroah-Hartman