Commit 1fb3e5cd authored by Jason J. Herne's avatar Jason J. Herne Committed by Thomas Huth
Browse files

s390-bios: ptr2u32 and u32toptr 



Introduce inline functions to convert between pointers and unsigned 32-bit
ints. These are used to hide the ugliness required to  avoid compiler
warnings.

Signed-off-by: default avatarJason J. Herne <jjherne@linux.ibm.com>
Acked-by: default avatarCornelia Huck <cohuck@redhat.com>
Reviewed-by: default avatarThomas Huth <thuth@redhat.com>
Message-Id: <1554388475-18329-8-git-send-email-jjherne@linux.ibm.com>
Signed-off-by: default avatarThomas Huth <thuth@redhat.com>
parent c95df3d1

pc-bios/s390-ccw/helper.h

0 → 100644
+31 −0
Original line number Diff line number Diff line 
/*

 * Helper Functions

 *

 * Copyright (c) 2019 IBM Corp.

 *

 * Author(s): Jason J. Herne <jjherne@us.ibm.com>

 *

 * This work is licensed under the terms of the GNU GPL, version 2 or (at

 * your option) any later version. See the COPYING file in the top-level

 * directory.

 */



#ifndef S390_CCW_HELPER_H

#define S390_CCW_HELPER_H



#include "s390-ccw.h"



/* Avoids compiler warnings when casting a pointer to a u32 */

static inline uint32_t ptr2u32(void *ptr)

{

    IPL_assert((uint64_t)ptr <= 0xffffffff, "ptr2u32: ptr too large");

    return (uint32_t)(uint64_t)ptr;

}



/* Avoids compiler warnings when casting a u32 to a pointer */

static inline void *u32toptr(uint32_t n)

{

    return (void *)(uint64_t)n;

}



#endif