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LinuxKPI: device.h add devm_kmemdup()

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Add devm_kmemdup() as needed by a networking driver.

Sponsored by:	The FreeBSD Foundation
MFC after:	7 days
eviewed by: 	hselasky, emaste
Differential Revision: https://reviews.freebsd.org/D36652
This commit is contained in:
Bjoern A. Zeeb 2022-09-21 19:33:30 +00:00
parent 91ebcbe02a
commit e999fbf077
1 changed files with 19 additions and 0 deletions
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19
sys/compat/linuxkpi/common/include/linux/device.h
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@ -4,6 +4,10 @@
* Copyright (c) 2010 Panasas, Inc.
* Copyright (c) 2013-2016 Mellanox Technologies, Ltd.
* All rights reserved.
* Copyright (c) 2021-2022 The FreeBSD Foundation
*
* Portions of this software were developed by Björn Zeeb
* under sponsorship from the FreeBSD Foundation.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
@ -600,6 +604,21 @@ devm_kmalloc(struct device *dev, size_t size, gfp_t gfp)
return (p);
}
static inline void *
devm_kmemdup(struct device *dev, const void *src, size_t len, gfp_t gfp)
{
void *dst;
if (len == 0)
return (NULL);
dst = devm_kmalloc(dev, len, gfp);
if (dst != NULL)
memcpy(dst, src, len);
return (dst);
}
#define devm_kzalloc(_dev, _size, _gfp) \
devm_kmalloc((_dev), (_size), (_gfp) | __GFP_ZERO)