utils/dmabuf_exporter: use proper offset type
Otherwise build might fail on 32-bit targets.
diff --git a/utils/src/dmabuf_exporter.rs b/utils/src/dmabuf_exporter.rs
index 1d90c24..ea7bacc 100644
--- a/utils/src/dmabuf_exporter.rs
+++ b/utils/src/dmabuf_exporter.rs
@@ -1,5 +1,7 @@
use std::fs::File;
+use nix::libc::off_t;
+
use nix::{
sys::memfd::{memfd_create, MemFdCreateFlag},
unistd::ftruncate,
@@ -16,7 +18,7 @@
.iter()
.map(|plane| {
memfd_create(c"memfd buffer", MemFdCreateFlag::MFD_ALLOW_SEALING)
- .and_then(|fd| ftruncate(&fd, i64::from(plane.sizeimage)).map(|_| fd))
+ .and_then(|fd| ftruncate(&fd, plane.sizeimage as off_t).map(|_| fd))
.map(|fd| DmaBufHandle::from(File::from(fd)))
.unwrap()
})
