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13b8219bd0
Fixes the following W=1 kernel build warning(s): drivers/tty/hvc/hvc_vio.c:385:13: warning: no previous prototype for ‘hvc_vio_init_early’ 385 | void __init hvc_vio_init_early(void) | ^~~~~~~~~~~~~~~~~~ Signed-off-by: Lee Jones <lee.jones@linaro.org> Signed-off-by: Michael Ellerman <mpe@ellerman.id.au> Link: https://lore.kernel.org/r/20210303124603.3150175-1-lee.jones@linaro.org
31 lines
790 B
C
31 lines
790 B
C
/* SPDX-License-Identifier: GPL-2.0-or-later */
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/*
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* hvconsole.h
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* Copyright (C) 2004 Ryan S Arnold, IBM Corporation
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*
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* LPAR console support.
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*/
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#ifndef _PPC64_HVCONSOLE_H
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#define _PPC64_HVCONSOLE_H
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#ifdef __KERNEL__
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/*
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* PSeries firmware will only send/recv up to 16 bytes of character data per
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* hcall.
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*/
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#define MAX_VIO_PUT_CHARS 16
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#define SIZE_VIO_GET_CHARS 16
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/*
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* Vio firmware always attempts to fetch MAX_VIO_GET_CHARS chars. The 'count'
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* parm is included to conform to put_chars() function pointer template
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*/
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extern int hvc_get_chars(uint32_t vtermno, char *buf, int count);
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extern int hvc_put_chars(uint32_t vtermno, const char *buf, int count);
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/* Provided by HVC VIO */
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void hvc_vio_init_early(void);
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#endif /* __KERNEL__ */
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#endif /* _PPC64_HVCONSOLE_H */
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