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Revision 834a846eee9588ac672cb504677490c28b597871 authored by Cornelia Huck on 02 May 2018, 12:52:21 UTC, committed by Michael Roth on 21 June 2018, 01:45:02 UTC 
s390-ccw: force diag 308 subcode to unsigned long
 
We currently pass an integer as the subcode parameter. However,
the upper bits of the register containing the subcode need to
be 0, which is not guaranteed unless we explicitly specify the
subcode to be an unsigned long value.

Fixes: d046c51dad3 ("pc-bios/s390-ccw: Get device address via diag 308/6")
Cc: qemu-stable@nongnu.org
Signed-off-by: Cornelia Huck <cohuck@redhat.com>
Acked-by: Christian Borntraeger <borntraeger@de.ibm.com>
Tested-by: Thomas Huth <thuth@redhat.com>
Signed-off-by: Thomas Huth <thuth@redhat.com>
(cherry picked from commit 63d8b5ace31c1e1f3996fe4cd551d6d377594d5a)
Signed-off-by: Michael Roth <mdroth@linux.vnet.ibm.com>
1 parent 0304f75
Raw File
sbuf.h 
/*
 * Copyright (c) 1995 Danny Gasparovski.
 *
 * Please read the file COPYRIGHT for the
 * terms and conditions of the copyright.
 */

#ifndef SBUF_H
#define SBUF_H

#define sbflush(sb) sbdrop((sb),(sb)->sb_cc)
#define sbspace(sb) ((sb)->sb_datalen - (sb)->sb_cc)

struct sbuf {
	uint32_t sb_cc;		/* actual chars in buffer */
	uint32_t sb_datalen;	/* Length of data  */
	char	*sb_wptr;	/* write pointer. points to where the next
				 * bytes should be written in the sbuf */
	char	*sb_rptr;	/* read pointer. points to where the next
				 * byte should be read from the sbuf */
	char	*sb_data;	/* Actual data */
};

void sbfree(struct sbuf *);
void sbdrop(struct sbuf *, int);
void sbreserve(struct sbuf *, int);
void sbappend(struct socket *, struct mbuf *);
void sbcopy(struct sbuf *, int, int, char *);

#endif
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