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2019-05-28media: staging/imx: Move add_video_device into capture_device_registerSteve Longerbeam6-29/+11
Move imx_media_add_video_device() into imx_media_capture_device_register(). Also the former has no error conditions to convert to void. Signed-off-by: Steve Longerbeam <slongerbeam@gmail.com> Signed-off-by: Hans Verkuil <hverkuil-cisco@xs4all.nl> Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>
2019-05-28media: staging/imx: Pass device to alloc/free_dma_bufSteve Longerbeam5-23/+22
Allocate and free a DMA coherent buffer in imx_media_alloc/free_dma_buf() from the given device. This allows DMA alloc and free using a device that is backed by real hardware, which for the imx5/6/7 CSI is the CSI unit, and for the internal IPU sub-devices, is the parent IPU. Signed-off-by: Steve Longerbeam <slongerbeam@gmail.com> Signed-off-by: Hans Verkuil <hverkuil-cisco@xs4all.nl> Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>
2019-05-28media: staging/imx: Switch to sync registration for IPU subdevsSteve Longerbeam13-539/+327
Because the IPU sub-devices VDIC and IC are not present in the device-tree, platform devices were created for them instead. This allowed these sub-devices to be added to the media device's async notifier and registered asynchronously along with the other sub-devices that do have a device-tree presence (CSI and devices external to the IPU and SoC). But that approach isn't really necessary. The IPU sub-devices don't actually require a backing device (sd->dev is allowed to be NULL). And that approach can't get around the fact that the IPU sub-devices are not part of a device hierarchy, which makes it awkward to retrieve the parent IPU of these devices. By registering them synchronously, they can be registered from the CSI async bound notifier, so the init function for them can be given the CSI subdev, who's dev->parent is the IPU. That is a somewhat cleaner way to retrieve the parent IPU. So convert to synchronous registration for the VDIC and IC task sub-devices, at the time a CSI sub-device is bound. There is no longer a backing device for them (sd->dev is NULL), but that's ok. Also set the VDIC/IC sub-device owner as the IPU, so that a reference can be taken on the IPU module. Since the VDIC and IC task drivers are no longer platform drivers, they are now statically linked to imx-media module. Signed-off-by: Steve Longerbeam <slongerbeam@gmail.com> Signed-off-by: Hans Verkuil <hverkuil-cisco@xs4all.nl> Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>
2019-05-28media: Revert "media: staging/imx: add media device to capture register"Steve Longerbeam5-8/+7
The imx6-specific subdevs that register a capture device will no longer hold a reference to the media device, so this commit must be reverted. This reverts commit 16204b8a1c1af77725533b77936e6c73953486ae. Signed-off-by: Steve Longerbeam <slongerbeam@gmail.com> Signed-off-by: Hans Verkuil <hverkuil-cisco@xs4all.nl> Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>
2019-05-28media: staging: media: imx: fix Unneeded variable: "ret". Return "0"Hariprasad Kelam1-2/+1
fix below warning reported by coccichec drivers/staging/media/imx/imx-media-capture.c:617:5-8: Unneeded variable: "ret". Return "0" on line 630 Signed-off-by: Hariprasad Kelam <hariprasad.kelam@gmail.com> Reviewed-by: Fabio Estevam <festevam@gmail.com> Signed-off-by: Hans Verkuil <hverkuil-cisco@xs4all.nl> Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>
2019-05-28media: imx7_mipi_csis: fix racy entity pads initRui Miguel Silva1-8/+16
Setting the media entity pads after the async register subdev can be racy with probe complete callback. So, make sure that the media pads are initialized before the probe complete is called. For that move the media entity pads initialization to the registered subdev internal operation. Signed-off-by: Rui Miguel Silva <rui.silva@linaro.org> Signed-off-by: Hans Verkuil <hverkuil-cisco@xs4all.nl> Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>
2019-05-28media: rockchip/vpu: Remove a useless testBoris Brezillon1-4/+2
vdev is guaranteed to be equal to vpu->vfd_enc thanks a test done a few lines above. Remove this useless test. Signed-off-by: Boris Brezillon <boris.brezillon@collabora.com> Signed-off-by: Hans Verkuil <hverkuil-cisco@xs4all.nl> Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>
2019-05-28media: rockchip/vpu: Cleanup JPEG bounce buffer managementEzequiel Garcia9-29/+84
In order to make the code more generic, introduce a pair of start/stop codec operations, and use them to allocate and release the JPEG bounce buffer. Signed-off-by: Ezequiel Garcia <ezequiel@collabora.com> Signed-off-by: Boris Brezillon <boris.brezillon@collabora.com> Signed-off-by: Hans Verkuil <hverkuil-cisco@xs4all.nl> Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>
2019-05-28media: rockchip/vpu: Cleanup macroblock alignmentEzequiel Garcia1-12/+8
We need to make the macrobock alignment generic, in order to support multiple codecs. Signed-off-by: Ezequiel Garcia <ezequiel@collabora.com> Signed-off-by: Boris Brezillon <boris.brezillon@collabora.com> Signed-off-by: Hans Verkuil <hverkuil-cisco@xs4all.nl> Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>
2019-05-28media: rockchip/vpu: Use v4l2_m2m_buf_copy_metadataEzequiel Garcia1-8/+1
Use the recently introduced v4l2_m2m_buf_copy_metadata helper and get rid of some code. Signed-off-by: Ezequiel Garcia <ezequiel@collabora.com> Signed-off-by: Boris Brezillon <boris.brezillon@collabora.com> Signed-off-by: Hans Verkuil <hverkuil-cisco@xs4all.nl> Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>
2019-05-28media: rockchip/vpu: Use pixel format helpersEzequiel Garcia1-89/+2
Now that we've introduced the pixel format helpers, use them in vpu driver, and get rid of the internal helpers. Signed-off-by: Ezequiel Garcia <ezequiel@collabora.com> Signed-off-by: Boris Brezillon <boris.brezillon@collabora.com> Signed-off-by: Hans Verkuil <hverkuil-cisco@xs4all.nl> Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>
2019-05-28Merge tag 'v5.2-rc2' into patchworkMauro Carvalho Chehab2-0/+2
Merge back from upstream into media tree, as there are some patches merged upstream that has pontential of causing conflicts (one actually rised a conflict already). Linux 5.2-rc2 * tag 'v5.2-rc2': (377 commits) Linux 5.2-rc2 random: fix soft lockup when trying to read from an uninitialized blocking pool tracing: Silence GCC 9 array bounds warning ext4: fix dcache lookup of !casefolded directories locking/lock_events: Use this_cpu_add() when necessary KVM: x86: fix return value for reserved EFER tools/kvm_stat: fix fields filter for child events KVM: selftests: Wrap vcpu_nested_state_get/set functions with x86 guard kvm: selftests: aarch64: compile with warnings on kvm: selftests: aarch64: fix default vm mode kvm: selftests: aarch64: dirty_log_test: fix unaligned memslot size KVM: s390: fix memory slot handling for KVM_SET_USER_MEMORY_REGION KVM: x86/pmu: do not mask the value that is written to fixed PMUs KVM: x86/pmu: mask the result of rdpmc according to the width of the counters x86/kvm/pmu: Set AMD's virt PMU version to 1 KVM: x86: do not spam dmesg with VMCS/VMCB dumps kvm: Check irqchip mode before assign irqfd kvm: svm/avic: fix off-by-one in checking host APIC ID KVM: selftests: do not blindly clobber registers in guest asm KVM: selftests: Remove duplicated TEST_ASSERT in hyperv_cpuid.c ...
2019-05-27staging:iio:ad7150: fix threshold mode config bitMelissa Wen1-8/+11
According to the AD7150 configuration register description, bit 7 assumes value 1 when the threshold mode is fixed and 0 when it is adaptive, however, the operation that identifies this mode was considering the opposite values. This patch renames the boolean variable to describe it correctly and properly replaces it in the places where it is used. Fixes: 531efd6aa0991 ("staging:iio:adc:ad7150: chan_spec conv + i2c_smbus commands + drop unused poweroff timeout control.") Signed-off-by: Melissa Wen <melissa.srw@gmail.com> Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
2019-05-26staging: iio: adis16240: add of_match_table entryRodrigo Ribeiro1-0/+1
This patch adds of_match_table entry in device driver in order to enable spi fallback probing. Signed-off-by: Rodrigo Ribeiro <rodrigorsdc@gmail.com> Reviewed-by: Marcelo Schmitt <marcelo.schmitt1@gmail.com> Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
2019-05-26staging: iio: ad7746: add device tree supportJoão Seckler1-0/+10
Add a of_device_id struct variable and subsequent call to MODULE_DEVICE_TABLE macro to support device tree. Signed-off-by: João Seckler <joaoseckler@gmail.com> Signed-off-by: Lucas Oshiro <lucasseikioshiro@gmail.com> Co-developed-by: Lucas Oshiro <lucasseikioshiro@gmail.com> Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
2019-05-26staging: iio: adis16240: add device to module device tableLucas Oshiro1-0/+6
Add a of_device_id struct and MODULE_DEVICE_TABLE call, in order to add device-tree support for this driver. Signed-off-by: Lucas Oshiro <lucasseikioshiro@gmail.com> Signed-off-by: Rodrigo Ribeiro <rodrigorsdc@gmail.com> Co-developed-by: Rodrigo Ribeiro <rodrigorsdc@gmail.com> Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
2019-05-26staging: iio: adt7316: create of_device_id arrayBárbara Fernandes1-0/+13
Create structure of type of_device_id in order to register all devices the driver is able to manage. Signed-off-by: Bárbara Fernandes <barbara.fernandes@usp.br> Signed-off-by: Wilson Sales <spoonm@spoonm.org> Co-developed-by: Wilson Sales <spoonm@spoonm.org> Acked-by: Alexandru Ardelean <alexandru.ardelean@analog.com> Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
2019-05-26staging: iio: adis16203: Add of_device_id tableThiago Estrela1-0/+8
Accomplish device tree compatibility to driver ADIS16203 by adding of_device_id table and making a subsequent call to MODULE_DEVICE_TABLE. Signed-off-by: Thiago Estrela <thiagestrela@gmail.com> Signed-off-by: Tiago Napoli <napoli.tiago96@gmail.com> Co-developed-by: Tiago Napoli <napoli.tiago96@gmail.com> Signed-off-by: Pedro Sousa <pedroteosousa@gmail.com> Co-developed-by: Pedro Sousa <pedroteosousa@gmail.com> Reviewed-by: Matheus Tavares <matheus.bernardino@usp.br> Reviewed-by: Marcelo Schmitt <marcelo.schmitt1@gmail.com> Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
2019-05-26staging: iio: ad9834: add of_device_id tableJoão Victor Marques de Oliveira1-0/+11
Add a of_device_id struct array of_match_table variable and subsequent call to MODULE_DEVICE_TABLE macro to enable explicit device tree support. Co-developed-by: Thiago L. A. Miller <tmiller@mochsl.org.br> Signed-off-by: Thiago L. A. Miller <tmiller@mochsl.org.br> Co-developed-by: Osvaldo M. Yasuda <omyasuda@yahoo.com.br> Signed-off-by: Osvaldo M. Yasuda <omyasuda@yahoo.com.br> Signed-off-by: João Victor Marques de Oliveira <joao.marques.oliveira@usp.br> Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
2019-05-26staging: iio: cdc: ad7150: create macro for capacitance channelsBárbara Fernandes1-17/+12
Create macro for capacitance channels in order to remove the repeated code and improve its readability. Signed-off-by: Bárbara Fernandes <barbara.fernandes@usp.br> Signed-off-by: Wilson Sales <spoonm@spoonm.org> Co-developed-by: Wilson Sales <spoonm@spoonm.org> Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
2019-05-24staging: kpc2000: Add dependency on MFD_CORE to kconfig symbol 'KPC2000'Geordan Neukum1-0/+1
The kpc2000 core makes calls against functions conditionally exported upon selection of the kconfig symbol MFD_CORE. Therefore, the kpc2000 core depends upon the mfd_core, and that dependency must be tracked in Kconfig to avoid potential build issues. Signed-off-by: Geordan Neukum <gneukum1@gmail.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2019-05-24staging: kpc2000: remove unnecessary oom messageSimon Sandström1-3/+1
Fixes checkpatch.pl warning "Possible unnecessary 'out of memory' message". Signed-off-by: Simon Sandström <simon@nikanor.nu> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2019-05-24staging: kpc2000: remove unnecessary include in cell_probe.cSimon Sandström1-1/+0
Fixes checkpatch.pl warning "Use #include <linux/io.h> instead of <asm/io.h>". Signed-off-by: Simon Sandström <simon@nikanor.nu> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2019-05-24staging: kpc2000: remove unnecessary braces in cell_probe.cSimon Sandström1-7/+4
Fixes checkpatch.pl warnings "braces {} are not necessary for single statement blocks". Signed-off-by: Simon Sandström <simon@nikanor.nu> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2019-05-24staging: kpc2000: use kzalloc(sizeof(var)...) in cell_probe.cSimon Sandström1-1/+1
Fixes checkpatch.pl warning "Prefer kzalloc(sizeof(*kudev)...) over kzalloc(sizeof(struct kpc_uio_device)...)" Signed-off-by: Simon Sandström <simon@nikanor.nu> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2019-05-24staging: kpc2000: remove extra blank lines in cell_probe.cSimon Sandström1-4/+0
Fixes checkpatch.pl warnings "Please don't use multiple blank lines". Signed-off-by: Simon Sandström <simon@nikanor.nu> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2019-05-24staging: kpc2000: fix alignment issues in cell_probe.cSimon Sandström1-19/+15
Fixes checkpatch.pl warnings "Alignment should match open parenthesis" and "Lines should not end with a '('". Signed-off-by: Simon Sandström <simon@nikanor.nu> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2019-05-24staging: kpc2000: add missing asterisk in commentSimon Sandström1-1/+1
Fixes checkpatch.pl error "code indent should use tabs where possible". Signed-off-by: Simon Sandström <simon@nikanor.nu> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2019-05-24staging: kpc2000: use __func__ in debug messagesSimon Sandström1-7/+12
Fixes checkpatch.pl warning "Prefer using '"%s...", __func__' to using '<function name>', this function's name, in a string". Signed-off-by: Simon Sandström <simon@nikanor.nu> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2019-05-24staging: kpc2000: add blank line after declarationsSimon Sandström1-0/+4
Fixes checkpatch.pl warning "Missing a blank line after declarations". Signed-off-by: Simon Sandström <simon@nikanor.nu> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2019-05-24staging: pi433: Remove unnecessary variableNishka Dasgupta1-3/+2
The variable retval is assigned constant values twice, and can therefore be replaced by its values. Signed-off-by: Nishka Dasgupta <nishkadg.linux@gmail.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2019-05-23media: staging/imx: Allow driver to build if COMPILE_TEST is enabledJavier Martinez Canillas1-1/+1
The driver has runtime but no build time dependency with IMX_IPUV3_CORE, so can be built for testing purposes if COMPILE_TEST option is enabled. This is useful to have more build coverage and make sure that the driver is not affected by changes that could cause build regressions. Signed-off-by: Javier Martinez Canillas <javierm@redhat.com> Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>
2019-05-23media: staging/intel-ipu3: update minimal GDC envelope size to 4Bingbu Cao1-8/+6
The ipu3 GDC function need some envelope to do filtering and the minimal envelope size(GDC in - out) for ipu3 should be 4. Current value 4 was defined for older version GDC, this patch correct it. Signed-off-by: Bingbu Cao <bingbu.cao@intel.com> Reviewed-by: Tomasz Figa <tfiga@chromium.org> Signed-off-by: Sakari Ailus <sakari.ailus@linux.intel.com> Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>
2019-05-23staging: kpc2000: remove invalid spaces in cell_probe.cSimon Sandström1-2/+2
Fixes checkpatch.pl error "space prohibited before/after that parenthesis". Signed-off-by: Simon Sandström <simon@nikanor.nu> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2019-05-23staging: kpc2000: add space after comma in cell_probe.cSimon Sandström1-1/+1
Fixes checkpatch.pl error "space required after that ','". Signed-off-by: Simon Sandström <simon@nikanor.nu> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2019-05-23staging: kpc2000: add spaces around operators in cell_probe.cSimon Sandström1-3/+3
Fixes checkpatch.pl warning "spaces preferred around that <op>". Signed-off-by: Simon Sandström <simon@nikanor.nu> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2019-05-23staging: kpc2000: fix invalid linebreaks in cell_probe.cSimon Sandström1-5/+12
Fixes checkpatch.pl error "else should follow close brace '}'" and "trailing statements should be on next line". Signed-off-by: Simon Sandström <simon@nikanor.nu> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2019-05-23staging: kpc2000: add space between ) and { in cell_probe.cSimon Sandström1-18/+18
Fixes checkpatch.pl error "space required before the open brace '{'". Signed-off-by: Simon Sandström <simon@nikanor.nu> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2019-05-23staging: kpc2000: fix indent in cell_probe.cSimon Sandström1-264/+264
Use tabs instead of spaces for indentation. Signed-off-by: Simon Sandström <simon@nikanor.nu> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2019-05-23staging: rtl8723bs: core: rtw_recv: fix warning Comparison to NULLHariprasad Kelam1-24/+24
fix below warning reported by checkpatch CHECK: Comparison to NULL could be written "!precvpriv->pallocated_frame_buf" CHECK: Comparison to NULL could be written "padapter" Signed-off-by: Hariprasad Kelam <hariprasad.kelam@gmail.com> ----- changes in v2: Corected few erorrs like (!*psta == NULL) pointed in review Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2019-05-23staging: kpc2000: kpc_i2c: fix platform_no_drv_owner.cocci warningskbuild test robot1-1/+0
drivers/staging/kpc2000/kpc2000_i2c.c:652:3-8: No need to set .owner here. The core will do it. Remove .owner field if calls are used which set it automatically Generated by: scripts/coccinelle/api/platform_no_drv_owner.cocci Fixes: 43ad38191816 ("staging: kpc2000: kpc_i2c: add static qual to local symbols in kpc_i2c.c") CC: Geordan Neukum <gneukum1@gmail.com> Signed-off-by: kbuild test robot <lkp@intel.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2019-05-23staging: unisys: visornic: Replace GFP_ATOMIC with GFP_KERNELHariprasad Kelam1-2/+2
As per below information GFP_KERNEL FLAG This is a normal allocation and might block. This is the flag to use in process context code when it is safe to sleep. GFP_ATOMIC FLAG The allocation is high-priority and does not sleep. This is the flag to use in interrupt handlers, bottom halves and other situations where you cannot sleep And we can take advantage of GFP_KERNEL , as when system is in low memory chances of getting success is high compared to GFP_ATOMIC. As visornic_probe is in process context we can use GPF_KERNEL. Signed-off-by: Hariprasad Kelam <hariprasad.kelam@gmail.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2019-05-22staging: kpc2000: kpc_i2c: add static qual to local symbols in kpc_i2c.cGeordan Neukum1-3/+3
kpc_i2c.c declares: - two functions - pi2c_probe() - pi2c_remove() - one struct - i2c_plat_driver_i which are local to the file, yet missing the static qualifier. Add the static qualifier to these symbols. Signed-off-by: Geordan Neukum <gneukum1@gmail.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2019-05-22staging: kpc2000: kpc_i2c: Remove unnecessary function tracing printsGeordan Neukum1-26/+0
Many of the functions in kpc_i2c log debug-level messages to the kernel log message buffer upon invocation. This is unnecessary, as debugging tools like kgdb, kdb, etc. or the tracing tool ftrace should be able to provide this same information. Therefore, remove these print statements. Signed-off-by: Geordan Neukum <gneukum1@gmail.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2019-05-22staging: kpc2000: kpc_i2c: use <linux/io.h> instead of <asm/io.h>Geordan Neukum1-1/+1
Rather than include asm/io.h, include linux/io.h. Issue reported by the script checkpatch.pl. Signed-off-by: Geordan Neukum <gneukum1@gmail.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2019-05-22staging: kpc2000: kpc_i2c: newline fixups to meet linux style guideGeordan Neukum1-53/+29
The linux coding style document states: 1) That braces should not be used where a single single statement will do. Therefore all instances of single block statements wrapped in braces that do not meet the qualifications of any of the exceptions to the rule should be fixed up. 2) That the declaration of variables local to a given function should be immediately followed by a blank newline. Therefore, the single instance of this in kpc2000_i2c.c should be fixed up. Signed-off-by: Geordan Neukum <gneukum1@gmail.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2019-05-22staging: kpc2000: kpc_i2c: remove unused module param disable_featuresGeordan Neukum1-4/+0
The module parameter 'disable_features' is currently unused. Therefore, it should be removed. Signed-off-by: Geordan Neukum <gneukum1@gmail.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2019-05-22staging: rtl8192u: Remove an unnecessary NULL checkNathan Chancellor1-2/+1
Clang warns: drivers/staging/rtl8192u/ieee80211/ieee80211_softmac.c:2663:47: warning: address of array 'param->u.wpa_ie.data' will always evaluate to 'true' [-Wpointer-bool-conversion] (param->u.wpa_ie.len && !param->u.wpa_ie.data)) ~~~~~~~~~~~~~~~~~^~~~ This was exposed by commit deabe03523a7 ("Staging: rtl8192u: ieee80211: Use !x in place of NULL comparisons") because we disable the warning that would have pointed out the comparison against NULL is also false: drivers/staging/rtl8192u/ieee80211/ieee80211_softmac.c:2663:46: warning: comparison of array 'param->u.wpa_ie.data' equal to a null pointer is always false [-Wtautological-pointer-compare] (param->u.wpa_ie.len && param->u.wpa_ie.data == NULL)) ~~~~~~~~~~~~~~~~^~~~ ~~~~ Remove it so clang no longer warns. Link: https://github.com/ClangBuiltLinux/linux/issues/487 Signed-off-by: Nathan Chancellor <natechancellor@gmail.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2019-05-22staging: kpc2000: removed superfluous NULL checks from device attribute call-backs.Jeremy Sowden1-27/+0
All the attribute show call-backs check whether pcard is NULL. However, pci_set_drvdata(pdev, pcard) is called before the sysfs files are created during probe, and pci_set_drvdata(pdev, NULL) is not called until after they are destroyed during remove; therefore, pcard will not be NULL, and we can drop the checks. Signed-off-by: Jeremy Sowden <jeremy@azazel.net> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2019-05-22staging: kpc2000: simplified kp2000_device retrieval in device attribute call-backs.Jeremy Sowden1-19/+9
All the call-backs used the same formula to retrieve the pcard from dev: struct pci_dev *pdev = to_pci_dev(dev); struct kp2000_device *pcard; if (!pdev) return NULL; pcard = pci_get_drvdata(pdev); Since to_pci_dev is a wrapper for container_of, it will not return NULL, and since pci_get_drvdata just calls dev_get_drvdata on the dev member of pdev, this is equivalent to: struct kp2000_device *pcard = dev_get_drvdata(&(container_of(dev, struct pci_dev, dev)->dev)); and we can simplify it to: struct kp2000_device *pcard = dev_get_drvdata(dev); Signed-off-by: Jeremy Sowden <jeremy@azazel.net> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>