mirror of
https://github.com/morrownr/8821cu-20210916.git
synced 2024-11-01 01:05:25 +00:00
78 lines
2.2 KiB
C
78 lines
2.2 KiB
C
|
/******************************************************************************
|
||
|
|
*
|
||
|
|
* Copyright(c) 2007 - 2017 Realtek Corporation.
|
||
|
|
*
|
||
|
|
* This program is free software; you can redistribute it and/or modify it
|
||
|
|
* under the terms of version 2 of the GNU General Public License as
|
||
|
|
* published by the Free Software Foundation.
|
||
|
|
*
|
||
|
|
* This program is distributed in the hope that it will be useful, but WITHOUT
|
||
|
|
* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
|
||
|
|
* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
|
||
|
|
* more details.
|
||
|
|
*
|
||
|
|
*****************************************************************************/
|
||
|
|
|
||
|
|
#include <drv_types.h>
|
||
|
|
|
||
|
|
#if defined(CONFIG_RTW_WDS) || defined(CONFIG_RTW_MESH) /* for now, only promised for kernel versions we support mesh */
|
||
|
|
|
||
|
|
int rtw_rhashtable_walk_enter(rtw_rhashtable *ht, rtw_rhashtable_iter *iter)
|
||
|
|
{
|
||
|
|
#if (LINUX_VERSION_CODE >= KERNEL_VERSION(4, 9, 0))
|
||
|
|
rhashtable_walk_enter((ht), (iter));
|
||
|
|
return 0;
|
||
|
|
#elif (LINUX_VERSION_CODE >= KERNEL_VERSION(4, 7, 0))
|
||
|
|
return rhashtable_walk_init((ht), (iter), GFP_ATOMIC);
|
||
|
|
#else
|
||
|
|
/* kernel >= 4.4.0 rhashtable_walk_init use GFP_KERNEL to alloc, spin_lock for assignment */
|
||
|
|
iter->ht = ht;
|
||
|
|
iter->p = NULL;
|
||
|
|
iter->slot = 0;
|
||
|
|
iter->skip = 0;
|
||
|
|
|
||
|
|
iter->walker = kmalloc(sizeof(*iter->walker), GFP_ATOMIC);
|
||
|
|
if (!iter->walker)
|
||
|
|
return -ENOMEM;
|
||
|
|
|
||
|
|
spin_lock(&ht->lock);
|
||
|
|
iter->walker->tbl =
|
||
|
|
rcu_dereference_protected(ht->tbl, lockdep_is_held(&ht->lock));
|
||
|
|
list_add(&iter->walker->list, &iter->walker->tbl->walkers);
|
||
|
|
spin_unlock(&ht->lock);
|
||
|
|
|
||
|
|
return 0;
|
||
|
|
#endif
|
||
|
|
}
|
||
|
|
|
||
|
|
#if (LINUX_VERSION_CODE < KERNEL_VERSION(4, 4, 0))
|
||
|
|
#if (LINUX_VERSION_CODE < KERNEL_VERSION(3, 15, 0))
|
||
|
|
#if (LINUX_VERSION_CODE < KERNEL_VERSION(2, 6, 25))
|
||
|
|
static inline int is_vmalloc_addr(const void *x)
|
||
|
|
{
|
||
|
|
#ifdef CONFIG_MMU
|
||
|
|
unsigned long addr = (unsigned long)x;
|
||
|
|
|
||
|
|
return addr >= VMALLOC_START && addr < VMALLOC_END;
|
||
|
|
#else
|
||
|
|
return 0;
|
||
|
|
#endif
|
||
|
|
}
|
||
|
|
#endif /* (LINUX_VERSION_CODE < KERNEL_VERSION(2, 6, 25)) */
|
||
|
|
|
||
|
|
void kvfree(const void *addr)
|
||
|
|
{
|
||
|
|
if (is_vmalloc_addr(addr))
|
||
|
|
vfree(addr);
|
||
|
|
else
|
||
|
|
kfree(addr);
|
||
|
|
}
|
||
|
|
#endif /* (LINUX_VERSION_CODE < KERNEL_VERSION(3, 15, 0)) */
|
||
|
|
|
||
|
|
#include "rhashtable.c"
|
||
|
|
|
||
|
|
#endif /* (LINUX_VERSION_CODE < KERNEL_VERSION(4, 4, 0)) */
|
||
|
|
|
||
|
|
#endif /* defined(CONFIG_RTW_WDS) || defined(CONFIG_RTW_MESH) */
|
||
|
|
|