79ca27706a
This is a lot of prep-work for being able to send event notifications back to userspace. Events now contain data, rather than a "something just happened" signal. Handler data is now embedded into a containing structure, rather than being kmalloc()'d, and can optionally have the notify routine handled in a workqueue. Various races between suspend/unload with display HPD/DP IRQ handlers automagically solved as a result. Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
25 lines
1.1 KiB
C
25 lines
1.1 KiB
C
#ifndef __NVIF_UNPACK_H__
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#define __NVIF_UNPACK_H__
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#define nvif_unvers(d) ({ \
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ret = (size == sizeof(d)) ? 0 : -ENOSYS; \
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(ret == 0); \
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})
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#define nvif_unpack(d,vl,vh,m) ({ \
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if ((vl) == 0 || ret == -ENOSYS) { \
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int _size = sizeof(d); \
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if (_size <= size && (d).version >= (vl) && \
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(d).version <= (vh)) { \
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data = (u8 *)data + _size; \
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size = size - _size; \
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ret = ((m) || !size) ? 0 : -E2BIG; \
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} else { \
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ret = -ENOSYS; \
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} \
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} \
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(ret == 0); \
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})
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#endif
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