tree 04f557f00a3693337102f5be678b6102bfb3b24b
parent cfb7d908dca025bdea6709801c5790863e902ef8
author William Henderson <william.henderson@nutanix.com> 1692779910 +0100
committer GitHub <noreply@github.com> 1692779910 +0100
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fix: incorrect number of dirty pages printed (#766)

The `log_dirty_bitmap` function in `dma.c` would output the wrong number of
dirty pages due to the `char` of the bitmap being sign-extended when implicitly
being converted to `unsigned int` for `__builtin_popcount`. By adding an
intermediate cast to `uint8_t` we avoid this incorrect behaviour.

See https://github.com/nutanix/libvfio-user/pull/746#discussion_r1297173318.

Signed-off-by: William Henderson <william.henderson@nutanix.com>