Add per-file error identifiers

[people/oremanj/gpxe.git] / src / include / gpxe / iobuf.h

diff --git a/src/include/gpxe/iobuf.h b/src/include/gpxe/iobuf.h
index c7451a0..c0dfd43 100644 (file)
--- a/src/include/gpxe/iobuf.h
+++ b/src/include/gpxe/iobuf.h
@@ -9,7 +9,6 @@
 
 #include <stdint.h>
 #include <assert.h>
-#include <errno.h>
 #include <gpxe/list.h>
 
 /**
@@ -162,26 +161,9 @@ static inline size_t iob_tailroom ( struct io_buffer *iobuf ) {
        return ( iobuf->end - iobuf->tail );
 }
 
-/**
- * Ensure I/O buffer has sufficient headroom
- *
- * @v iobuf    I/O buffer
- * @v len      Required headroom
- *
- * This function currently only checks for the required headroom; it
- * does not reallocate the I/O buffer if required.  If we ever have a
- * code path that requires this functionality, it's a fairly trivial
- * change to make.
- */
-static inline __attribute__ (( always_inline )) int
-iob_ensure_headroom ( struct io_buffer *iobuf, size_t len ) {
-       if ( iob_headroom ( iobuf ) >= len )
-               return 0;
-       return -ENOBUFS;
-}
-
 extern struct io_buffer * alloc_iob ( size_t len );
 extern void free_iob ( struct io_buffer *iobuf );
 extern void iob_pad ( struct io_buffer *iobuf, size_t min_len );
+extern int iob_ensure_headroom ( struct io_buffer *iobuf, size_t len );
 
 #endif /* _GPXE_IOBUF_H */