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-rw-r--r--include/asm-s390/cpcmd.h34
1 files changed, 0 insertions, 34 deletions
diff --git a/include/asm-s390/cpcmd.h b/include/asm-s390/cpcmd.h
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index 48a9eab16429..000000000000
--- a/include/asm-s390/cpcmd.h
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1/*
2 * arch/s390/kernel/cpcmd.h
3 *
4 * S390 version
5 * Copyright (C) 1999 IBM Deutschland Entwicklung GmbH, IBM Corporation
6 * Author(s): Martin Schwidefsky (schwidefsky@de.ibm.com),
7 * Christian Borntraeger (cborntra@de.ibm.com),
8 */
9
10#ifndef _ASM_S390_CPCMD_H
11#define _ASM_S390_CPCMD_H
12
13/*
14 * the lowlevel function for cpcmd
15 * the caller of __cpcmd has to ensure that the response buffer is below 2 GB
16 */
17extern int __cpcmd(const char *cmd, char *response, int rlen, int *response_code);
18
19/*
20 * cpcmd is the in-kernel interface for issuing CP commands
21 *
22 * cmd: null-terminated command string, max 240 characters
23 * response: response buffer for VM's textual response
24 * rlen: size of the response buffer, cpcmd will not exceed this size
25 * but will cap the output, if its too large. Everything that
26 * did not fit into the buffer will be silently dropped
27 * response_code: return pointer for VM's error code
28 * return value: the size of the response. The caller can check if the buffer
29 * was large enough by comparing the return value and rlen
30 * NOTE: If the response buffer is not below 2 GB, cpcmd can sleep
31 */
32extern int cpcmd(const char *cmd, char *response, int rlen, int *response_code);
33
34#endif /* _ASM_S390_CPCMD_H */