vcsm-cma fixes for lockdep warnings #6929
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lockdep throws warnings when using libcamera as buffers are mapped and unmapped as the dmabuf->resv lock hasn't been taken. Switch to using the _unlocked variants so that the framework takes the lock. raspberrypi#6814 Signed-off-by: Dave Stevenson <[email protected]>
There are no contexts where we should be calling the kernelid_map IDR functions where we can't sleep, so switch from using a spinlock to using a mutex. raspberrypi#6815 Signed-off-by: Dave Stevenson <[email protected]>
This was referenced Jun 30, 2025
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kernel: vcsm-cma fixes for lockdep warnings See: raspberrypi/linux#6929 kernel: dtoverlay: Add autorepeat option to gpio-key overlay See: raspberrypi/linux#6933 kernel: drivers: media: cfe: Workaround for 16-bit mismatch in the hardware See: raspberrypi/linux#6935 kernel: configs: Enable more packet classification options See: raspberrypi/linux#6938 kernel: overlays: ili9881-7inch: Fix overlay name in preamble See: raspberrypi/linux#6940 kernel: iommu: bcm2712-iommu: Add locking; fix address offset; tidy See: raspberrypi/linux#6939
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kernel: vcsm-cma fixes for lockdep warnings See: raspberrypi/linux#6929 kernel: dtoverlay: Add autorepeat option to gpio-key overlay See: raspberrypi/linux#6933 kernel: drivers: media: cfe: Workaround for 16-bit mismatch in the hardware See: raspberrypi/linux#6935 kernel: configs: Enable more packet classification options See: raspberrypi/linux#6938 kernel: overlays: ili9881-7inch: Fix overlay name in preamble See: raspberrypi/linux#6940 kernel: iommu: bcm2712-iommu: Add locking; fix address offset; tidy See: raspberrypi/linux#6939
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Raised as #6814 and #6815. The analysis appears correct, hence update the driver.