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-rw-r--r--gpxe/src/core/iobuf.c96
1 files changed, 0 insertions, 96 deletions
diff --git a/gpxe/src/core/iobuf.c b/gpxe/src/core/iobuf.c
deleted file mode 100644
index 1ce7890e..00000000
--- a/gpxe/src/core/iobuf.c
+++ /dev/null
@@ -1,96 +0,0 @@
-/*
- * Copyright (C) 2006 Michael Brown <mbrown@fensystems.co.uk>.
- *
- * This program is free software; you can redistribute it and/or
- * modify it under the terms of the GNU General Public License as
- * published by the Free Software Foundation; either version 2 of the
- * License, or any later version.
- *
- * This program is distributed in the hope that it will be useful, but
- * WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
- * General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program; if not, write to the Free Software
- * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
- */
-
-FILE_LICENCE ( GPL2_OR_LATER );
-
-#include <stdint.h>
-#include <errno.h>
-#include <gpxe/malloc.h>
-#include <gpxe/iobuf.h>
-
-/** @file
- *
- * I/O buffers
- *
- */
-
-/**
- * Allocate I/O buffer
- *
- * @v len Required length of buffer
- * @ret iobuf I/O buffer, or NULL if none available
- *
- * The I/O buffer will be physically aligned to a multiple of
- * @c IOBUF_SIZE.
- */
-struct io_buffer * alloc_iob ( size_t len ) {
- struct io_buffer *iobuf = NULL;
- void *data;
-
- /* Pad to minimum length */
- if ( len < IOB_ZLEN )
- len = IOB_ZLEN;
-
- /* Align buffer length */
- len = ( len + __alignof__( *iobuf ) - 1 ) &
- ~( __alignof__( *iobuf ) - 1 );
-
- /* Allocate memory for buffer plus descriptor */
- data = malloc_dma ( len + sizeof ( *iobuf ), IOB_ALIGN );
- if ( ! data )
- return NULL;
-
- iobuf = ( struct io_buffer * ) ( data + len );
- iobuf->head = iobuf->data = iobuf->tail = data;
- iobuf->end = iobuf;
- return iobuf;
-}
-
-/**
- * Free I/O buffer
- *
- * @v iobuf I/O buffer
- */
-void free_iob ( struct io_buffer *iobuf ) {
- if ( iobuf ) {
- assert ( iobuf->head <= iobuf->data );
- assert ( iobuf->data <= iobuf->tail );
- assert ( iobuf->tail <= iobuf->end );
- free_dma ( iobuf->head,
- ( iobuf->end - iobuf->head ) + sizeof ( *iobuf ) );
- }
-}
-
-/**
- * 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.
- */
-int iob_ensure_headroom ( struct io_buffer *iobuf, size_t len ) {
-
- if ( iob_headroom ( iobuf ) >= len )
- return 0;
- return -ENOBUFS;
-}
-