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libcamera: dma_buf_allocator: Work around lack of file seals in uClibc

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uClibc doesn't provide the macros defining parameters for the file
sealing API. Define them manually as a work around.

Fixes: ea4baaacc3 ("libcamera: DmaBufAllocator: Support allocating from /dev/udmabuf")
Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Reviewed-by: Kieran Bingham <kieran.bingham@ideasonboard.com>
Reviewed-by: Hans de Goede <hdegoede@redhat.com>
This commit is contained in:
Laurent Pinchart 2024-06-05 10:34:17 +03:00
parent 9f0d88695e
commit 48cb731d72
2 changed files with 12 additions and 0 deletions
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8
src/libcamera/dma_buf_allocator.cpp
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@ -127,6 +127,14 @@ DmaBufAllocator::~DmaBufAllocator() = default;
* \return True if the DmaBufAllocator is valid, false otherwise
*/
/* uClibc doesn't provide the file sealing API. */
#ifndef __DOXYGEN__
#if not HAVE_FILE_SEALS
#define F_ADD_SEALS 1033
#define F_SEAL_SHRINK 0x0002
#endif
#endif
UniqueFD DmaBufAllocator::allocFromUDmaBuf(const char *name, std::size_t size)
{
/* Size must be a multiple of the page size. Round it up. */