514 lines
15 KiB
C
Executable File
514 lines
15 KiB
C
Executable File
/*
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* Platform Dependent file for usage of Preallocted Memory
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*
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* Copyright (C) 1999-2017, Broadcom Corporation
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*
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* Unless you and Broadcom execute a separate written software license
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* agreement governing use of this software, this software is licensed to you
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* under the terms of the GNU General Public License version 2 (the "GPL"),
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* available at http://www.broadcom.com/licenses/GPLv2.php, with the
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* following added to such license:
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*
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* As a special exception, the copyright holders of this software give you
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* permission to link this software with independent modules, and to copy and
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* distribute the resulting executable under terms of your choice, provided that
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* you also meet, for each linked independent module, the terms and conditions of
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* the license of that module. An independent module is a module which is not
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* derived from this software. The special exception does not apply to any
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* modifications of the software.
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*
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* Notwithstanding the above, under no circumstances may you combine this
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* software in any way with any other Broadcom software provided under a license
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* other than the GPL, without Broadcom's express prior written consent.
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*
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* <<Broadcom-WL-IPTag/Open:>>
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*
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* $Id: dhd_custom_memprealloc.c 707595 2017-06-28 08:28:30Z $
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*/
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#include <linux/device.h>
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#include <linux/slab.h>
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#include <linux/miscdevice.h>
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#include <linux/sched.h>
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#include <linux/module.h>
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#include <linux/fs.h>
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#include <linux/list.h>
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#include <linux/io.h>
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#include <linux/workqueue.h>
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#include <linux/unistd.h>
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#include <linux/bug.h>
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#include <linux/skbuff.h>
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#include <linux/init.h>
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#ifdef CONFIG_BROADCOM_WIFI_RESERVED_MEM
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#define WLAN_STATIC_SCAN_BUF0 5
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#define WLAN_STATIC_SCAN_BUF1 6
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#define WLAN_STATIC_DHD_INFO_BUF 7
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#define WLAN_STATIC_DHD_WLFC_BUF 8
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#define WLAN_STATIC_DHD_IF_FLOW_LKUP 9
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#define WLAN_STATIC_DHD_MEMDUMP_RAM 11
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#define WLAN_STATIC_DHD_WLFC_HANGER 12
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#define WLAN_STATIC_DHD_PKTID_MAP 13
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#define WLAN_STATIC_DHD_PKTID_IOCTL_MAP 14
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#define WLAN_STATIC_DHD_LOG_DUMP_BUF 15
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#define WLAN_STATIC_DHD_LOG_DUMP_BUF_EX 16
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#define WLAN_STATIC_DHD_PKTLOG_DUMP_BUF 17
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#define WLAN_STATIC_STAT_REPORT_BUF 18
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#define WLAN_SCAN_BUF_SIZE (64 * 1024)
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#if defined(CONFIG_64BIT)
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#define WLAN_DHD_INFO_BUF_SIZE (32 * 1024)
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#define WLAN_DHD_WLFC_BUF_SIZE (64 * 1024)
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#define WLAN_DHD_IF_FLOW_LKUP_SIZE (64 * 1024)
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#else
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#define WLAN_DHD_INFO_BUF_SIZE (32 * 1024)
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#define WLAN_DHD_WLFC_BUF_SIZE (16 * 1024)
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#define WLAN_DHD_IF_FLOW_LKUP_SIZE (20 * 1024)
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#endif /* CONFIG_64BIT */
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#define WLAN_DHD_MEMDUMP_SIZE (1536 * 1024)
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#define PREALLOC_WLAN_SEC_NUM 4
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#define PREALLOC_WLAN_BUF_NUM 160
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#define PREALLOC_WLAN_SECTION_HEADER 24
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#ifdef CONFIG_BCMDHD_PCIE
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#define DHD_SKB_1PAGE_BUFSIZE (PAGE_SIZE*1)
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#define DHD_SKB_2PAGE_BUFSIZE (PAGE_SIZE*2)
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#define DHD_SKB_4PAGE_BUFSIZE (PAGE_SIZE*4)
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#define WLAN_SECTION_SIZE_0 (PREALLOC_WLAN_BUF_NUM * 128)
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#define WLAN_SECTION_SIZE_1 0
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#define WLAN_SECTION_SIZE_2 0
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#define WLAN_SECTION_SIZE_3 (PREALLOC_WLAN_BUF_NUM * 1024)
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#define DHD_SKB_1PAGE_BUF_NUM 0
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#define DHD_SKB_2PAGE_BUF_NUM 128
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#define DHD_SKB_4PAGE_BUF_NUM 0
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#else
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#define DHD_SKB_HDRSIZE 336
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#define DHD_SKB_1PAGE_BUFSIZE ((PAGE_SIZE*1)-DHD_SKB_HDRSIZE)
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#define DHD_SKB_2PAGE_BUFSIZE ((PAGE_SIZE*2)-DHD_SKB_HDRSIZE)
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#define DHD_SKB_4PAGE_BUFSIZE ((PAGE_SIZE*4)-DHD_SKB_HDRSIZE)
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#define WLAN_SECTION_SIZE_0 (PREALLOC_WLAN_BUF_NUM * 128)
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#define WLAN_SECTION_SIZE_1 (PREALLOC_WLAN_BUF_NUM * 128)
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#define WLAN_SECTION_SIZE_2 (PREALLOC_WLAN_BUF_NUM * 512)
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#define WLAN_SECTION_SIZE_3 (PREALLOC_WLAN_BUF_NUM * 1024)
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#define DHD_SKB_1PAGE_BUF_NUM 8
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#define DHD_SKB_2PAGE_BUF_NUM 8
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#define DHD_SKB_4PAGE_BUF_NUM 1
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#endif /* CONFIG_BCMDHD_PCIE */
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#define WLAN_SKB_1_2PAGE_BUF_NUM ((DHD_SKB_1PAGE_BUF_NUM) + \
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(DHD_SKB_2PAGE_BUF_NUM))
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#define WLAN_SKB_BUF_NUM ((WLAN_SKB_1_2PAGE_BUF_NUM) + \
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(DHD_SKB_4PAGE_BUF_NUM))
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#define WLAN_MAX_PKTID_ITEMS (8192)
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#define WLAN_DHD_PKTID_MAP_HDR_SIZE (20 + 4*(WLAN_MAX_PKTID_ITEMS + 1))
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#define WLAN_DHD_PKTID_MAP_ITEM_SIZE (32)
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#define WLAN_DHD_PKTID_MAP_SIZE ((WLAN_DHD_PKTID_MAP_HDR_SIZE) + \
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((WLAN_MAX_PKTID_ITEMS+1) * WLAN_DHD_PKTID_MAP_ITEM_SIZE))
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#define WLAN_MAX_PKTID_IOCTL_ITEMS (32)
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#define WLAN_DHD_PKTID_IOCTL_MAP_HDR_SIZE (20 + 4*(WLAN_MAX_PKTID_IOCTL_ITEMS + 1))
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#define WLAN_DHD_PKTID_IOCTL_MAP_ITEM_SIZE (32)
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#define WLAN_DHD_PKTID_IOCTL_MAP_SIZE ((WLAN_DHD_PKTID_IOCTL_MAP_HDR_SIZE) + \
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((WLAN_MAX_PKTID_IOCTL_ITEMS+1) * WLAN_DHD_PKTID_IOCTL_MAP_ITEM_SIZE))
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#define DHD_LOG_DUMP_BUF_SIZE (1024 * 1024)
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#define DHD_LOG_DUMP_BUF_EX_SIZE (8 * 1024)
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#define DHD_PKTLOG_DUMP_BUF_SIZE (64 * 1024)
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#define DHD_STAT_REPORT_BUF_SIZE (128 * 1024)
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#define WLAN_DHD_WLFC_HANGER_MAXITEMS 3072
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#define WLAN_DHD_WLFC_HANGER_ITEM_SIZE 32
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#define WLAN_DHD_WLFC_HANGER_SIZE ((WLAN_DHD_WLFC_HANGER_ITEM_SIZE) + \
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((WLAN_DHD_WLFC_HANGER_MAXITEMS) * (WLAN_DHD_WLFC_HANGER_ITEM_SIZE)))
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static struct sk_buff *wlan_static_skb[WLAN_SKB_BUF_NUM];
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struct wlan_mem_prealloc {
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void *mem_ptr;
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unsigned long size;
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};
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static struct wlan_mem_prealloc wlan_mem_array[PREALLOC_WLAN_SEC_NUM] = {
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{NULL, (WLAN_SECTION_SIZE_0 + PREALLOC_WLAN_SECTION_HEADER)},
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{NULL, (WLAN_SECTION_SIZE_1 + PREALLOC_WLAN_SECTION_HEADER)},
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{NULL, (WLAN_SECTION_SIZE_2 + PREALLOC_WLAN_SECTION_HEADER)},
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{NULL, (WLAN_SECTION_SIZE_3 + PREALLOC_WLAN_SECTION_HEADER)}
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};
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static void *wlan_static_scan_buf0 = NULL;
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static void *wlan_static_scan_buf1 = NULL;
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static void *wlan_static_dhd_info_buf = NULL;
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static void *wlan_static_dhd_wlfc_buf = NULL;
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static void *wlan_static_if_flow_lkup = NULL;
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static void *wlan_static_dhd_memdump_ram = NULL;
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static void *wlan_static_dhd_wlfc_hanger = NULL;
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static void *wlan_static_dhd_pktid_map = NULL;
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static void *wlan_static_dhd_pktid_ioctl_map = NULL;
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static void *wlan_static_dhd_log_dump_buf = NULL;
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static void *wlan_static_dhd_log_dump_buf_ex = NULL;
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static void *wlan_static_dhd_pktlog_dump_buf = NULL;
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static void *wlan_static_stat_report_buf = NULL;
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#define GET_STATIC_BUF(section, config_size, req_size, buf) ({\
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void *__ret; \
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if (req_size > config_size) {\
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pr_err("request " #section " size(%lu) is bigger than" \
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" static size(%d)\n", \
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req_size, config_size); \
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__ret = NULL; \
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} else { __ret = buf;} \
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__ret; \
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})
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void
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*dhd_wlan_mem_prealloc(int section, unsigned long size)
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{
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if (section == PREALLOC_WLAN_SEC_NUM) {
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return wlan_static_skb;
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}
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if (section == WLAN_STATIC_SCAN_BUF0) {
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return wlan_static_scan_buf0;
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}
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if (section == WLAN_STATIC_SCAN_BUF1) {
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return wlan_static_scan_buf1;
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}
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if (section == WLAN_STATIC_DHD_INFO_BUF) {
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if (size > WLAN_DHD_INFO_BUF_SIZE) {
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pr_err("request DHD_INFO size(%lu) is bigger than"
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" static size(%d).\n", size,
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WLAN_DHD_INFO_BUF_SIZE);
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return NULL;
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}
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return wlan_static_dhd_info_buf;
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}
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if (section == WLAN_STATIC_DHD_WLFC_BUF) {
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if (size > WLAN_DHD_WLFC_BUF_SIZE) {
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pr_err("request DHD_WLFC size(%lu) is bigger than"
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" static size(%d).\n",
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size, WLAN_DHD_WLFC_BUF_SIZE);
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return NULL;
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}
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return wlan_static_dhd_wlfc_buf;
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}
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if (section == WLAN_STATIC_DHD_WLFC_HANGER) {
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if (size > WLAN_DHD_WLFC_HANGER_SIZE) {
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pr_err("request DHD_WLFC_HANGER size(%lu) is bigger than"
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" static size(%d).\n",
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size, WLAN_DHD_WLFC_HANGER_SIZE);
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return NULL;
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}
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return wlan_static_dhd_wlfc_hanger;
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}
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if (section == WLAN_STATIC_DHD_IF_FLOW_LKUP) {
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if (size > WLAN_DHD_IF_FLOW_LKUP_SIZE) {
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pr_err("request DHD_WLFC size(%lu) is bigger than"
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" static size(%d).\n",
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size, WLAN_DHD_WLFC_BUF_SIZE);
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return NULL;
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}
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return wlan_static_if_flow_lkup;
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}
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if (section == WLAN_STATIC_DHD_MEMDUMP_RAM) {
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if (size > WLAN_DHD_MEMDUMP_SIZE) {
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pr_err("request DHD_MEMDUMP_RAM size(%lu) is bigger"
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" than static size(%d).\n",
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size, WLAN_DHD_MEMDUMP_SIZE);
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return NULL;
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}
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return wlan_static_dhd_memdump_ram;
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}
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if (section == WLAN_STATIC_DHD_PKTID_MAP) {
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if (size > WLAN_DHD_PKTID_MAP_SIZE) {
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pr_err("request DHD_PKTID_MAP size(%lu) is bigger than"
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" static size(%d).\n",
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size, WLAN_DHD_PKTID_MAP_SIZE);
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return NULL;
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}
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return wlan_static_dhd_pktid_map;
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}
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if (section == WLAN_STATIC_DHD_PKTID_IOCTL_MAP) {
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if (size > WLAN_DHD_PKTID_IOCTL_MAP_SIZE) {
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pr_err("request DHD_PKTID_IOCTL_MAP size(%lu) is bigger than"
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" static size(%d).\n",
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size, WLAN_DHD_PKTID_IOCTL_MAP_SIZE);
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return NULL;
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}
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return wlan_static_dhd_pktid_ioctl_map;
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}
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if (section == WLAN_STATIC_DHD_LOG_DUMP_BUF) {
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if (size > DHD_LOG_DUMP_BUF_SIZE) {
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pr_err("request DHD_LOG_DUMP_BUF size(%lu) is bigger then"
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" static size(%d).\n",
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size, DHD_LOG_DUMP_BUF_SIZE);
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return NULL;
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}
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return wlan_static_dhd_log_dump_buf;
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}
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if (section == WLAN_STATIC_DHD_LOG_DUMP_BUF_EX) {
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if (size > DHD_LOG_DUMP_BUF_EX_SIZE) {
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pr_err("request DHD_LOG_DUMP_BUF_EX size(%lu) is bigger then"
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" static size(%d).\n",
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size, DHD_LOG_DUMP_BUF_EX_SIZE);
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return NULL;
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}
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return wlan_static_dhd_log_dump_buf_ex;
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}
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if (section == WLAN_STATIC_DHD_PKTLOG_DUMP_BUF) {
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if (size > DHD_PKTLOG_DUMP_BUF_SIZE) {
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pr_err("request DHD_PKTLOG_DUMP_BUF size(%lu) is bigger then"
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" static size(%d).\n",
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size, DHD_PKTLOG_DUMP_BUF_SIZE);
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return NULL;
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}
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return wlan_static_dhd_pktlog_dump_buf;
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}
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if (section == WLAN_STATIC_STAT_REPORT_BUF) {
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return GET_STATIC_BUF(WLAN_STATIC_STAT_REPORT_BUF,
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DHD_STAT_REPORT_BUF_SIZE, size, wlan_static_stat_report_buf);
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}
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if ((section < 0) || (section >= PREALLOC_WLAN_SEC_NUM)) {
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return NULL;
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}
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if (wlan_mem_array[section].size < size) {
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return NULL;
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}
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return wlan_mem_array[section].mem_ptr;
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}
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EXPORT_SYMBOL(dhd_wlan_mem_prealloc);
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int
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dhd_init_wlan_mem(void)
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{
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int i;
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int j;
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for (i = 0; i < DHD_SKB_1PAGE_BUF_NUM; i++) {
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wlan_static_skb[i] = dev_alloc_skb(DHD_SKB_1PAGE_BUFSIZE);
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if (!wlan_static_skb[i]) {
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goto err_skb_alloc;
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}
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}
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for (i = DHD_SKB_1PAGE_BUF_NUM; i < WLAN_SKB_1_2PAGE_BUF_NUM; i++) {
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wlan_static_skb[i] = dev_alloc_skb(DHD_SKB_2PAGE_BUFSIZE);
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if (!wlan_static_skb[i]) {
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goto err_skb_alloc;
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}
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}
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#if !defined(CONFIG_BCMDHD_PCIE)
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wlan_static_skb[i] = dev_alloc_skb(DHD_SKB_4PAGE_BUFSIZE);
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if (!wlan_static_skb[i]) {
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goto err_skb_alloc;
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}
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#endif /* !CONFIG_BCMDHD_PCIE */
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for (i = 0; i < PREALLOC_WLAN_SEC_NUM; i++) {
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if (wlan_mem_array[i].size > 0) {
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wlan_mem_array[i].mem_ptr =
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kmalloc(wlan_mem_array[i].size, GFP_KERNEL);
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if (!wlan_mem_array[i].mem_ptr) {
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goto err_mem_alloc;
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}
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}
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}
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wlan_static_scan_buf0 = kmalloc(WLAN_SCAN_BUF_SIZE, GFP_KERNEL);
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if (!wlan_static_scan_buf0) {
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pr_err("Failed to alloc wlan_static_scan_buf0\n");
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goto err_mem_alloc;
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}
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wlan_static_scan_buf1 = kmalloc(WLAN_SCAN_BUF_SIZE, GFP_KERNEL);
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if (!wlan_static_scan_buf1) {
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pr_err("Failed to alloc wlan_static_scan_buf1\n");
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goto err_mem_alloc;
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}
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wlan_static_dhd_log_dump_buf = kmalloc(DHD_LOG_DUMP_BUF_SIZE, GFP_KERNEL);
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if (!wlan_static_dhd_log_dump_buf) {
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pr_err("Failed to alloc wlan_static_dhd_log_dump_buf\n");
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goto err_mem_alloc;
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}
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wlan_static_dhd_log_dump_buf_ex = kmalloc(DHD_LOG_DUMP_BUF_EX_SIZE, GFP_KERNEL);
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if (!wlan_static_dhd_log_dump_buf_ex) {
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pr_err("Failed to alloc wlan_static_dhd_log_dump_buf_ex\n");
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goto err_mem_alloc;
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}
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wlan_static_dhd_info_buf = kmalloc(WLAN_DHD_INFO_BUF_SIZE, GFP_KERNEL);
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if (!wlan_static_dhd_info_buf) {
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pr_err("Failed to alloc wlan_static_dhd_info_buf\n");
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goto err_mem_alloc;
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}
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#ifdef CONFIG_BCMDHD_PCIE
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wlan_static_if_flow_lkup = kmalloc(WLAN_DHD_IF_FLOW_LKUP_SIZE,
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GFP_KERNEL);
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if (!wlan_static_if_flow_lkup) {
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pr_err("Failed to alloc wlan_static_if_flow_lkup\n");
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goto err_mem_alloc;
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}
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#ifdef CONFIG_BCMDHD_PREALLOC_PKTIDMAP
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wlan_static_dhd_pktid_map = kmalloc(WLAN_DHD_PKTID_MAP_SIZE,
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GFP_KERNEL);
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if (!wlan_static_dhd_pktid_map) {
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pr_err("Failed to alloc wlan_static_dhd_pktid_map\n");
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goto err_mem_alloc;
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}
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wlan_static_dhd_pktid_ioctl_map = kmalloc(WLAN_DHD_PKTID_IOCTL_MAP_SIZE,
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GFP_KERNEL);
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if (!wlan_static_dhd_pktid_ioctl_map) {
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pr_err("Failed to alloc wlan_static_dhd_pktid_ioctl_map\n");
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goto err_mem_alloc;
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}
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#endif /* CONFIG_BCMDHD_PREALLOC_PKTIDMAP */
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#else
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wlan_static_dhd_wlfc_buf = kmalloc(WLAN_DHD_WLFC_BUF_SIZE,
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GFP_KERNEL);
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if (!wlan_static_dhd_wlfc_buf) {
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pr_err("Failed to alloc wlan_static_dhd_wlfc_buf\n");
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goto err_mem_alloc;
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}
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wlan_static_dhd_wlfc_hanger = kmalloc(WLAN_DHD_WLFC_HANGER_SIZE,
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GFP_KERNEL);
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if (!wlan_static_dhd_wlfc_hanger) {
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pr_err("Failed to alloc wlan_static_dhd_wlfc_hanger\n");
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goto err_mem_alloc;
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}
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#endif /* CONFIG_BCMDHD_PCIE */
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#ifdef CONFIG_BCMDHD_PREALLOC_MEMDUMP
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wlan_static_dhd_memdump_ram = kmalloc(WLAN_DHD_MEMDUMP_SIZE, GFP_KERNEL);
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if (!wlan_static_dhd_memdump_ram) {
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pr_err("Failed to alloc wlan_static_dhd_memdump_ram\n");
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|
goto err_mem_alloc;
|
|
}
|
|
#endif /* CONFIG_BCMDHD_PREALLOC_MEMDUMP */
|
|
|
|
wlan_static_dhd_pktlog_dump_buf = kmalloc(DHD_PKTLOG_DUMP_BUF_SIZE, GFP_KERNEL);
|
|
if (!wlan_static_dhd_pktlog_dump_buf) {
|
|
pr_err("Failed to alloc wlan_static_dhd_pktlog_dump_buf\n");
|
|
goto err_mem_alloc;
|
|
}
|
|
|
|
wlan_static_stat_report_buf = kmalloc(DHD_STAT_REPORT_BUF_SIZE, GFP_KERNEL);
|
|
if (!wlan_static_stat_report_buf) {
|
|
pr_err("Failed to alloc wlan_static_stat_report_buf\n");
|
|
goto err_mem_alloc;
|
|
}
|
|
|
|
pr_err("%s: WIFI MEM Allocated\n", __FUNCTION__);
|
|
return 0;
|
|
|
|
err_mem_alloc:
|
|
#ifdef CONFIG_BCMDHD_PREALLOC_MEMDUMP
|
|
if (wlan_static_dhd_memdump_ram) {
|
|
kfree(wlan_static_dhd_memdump_ram);
|
|
}
|
|
|
|
#endif /* CONFIG_BCMDHD_PREALLOC_MEMDUMP */
|
|
|
|
#ifdef CONFIG_BCMDHD_PCIE
|
|
if (wlan_static_if_flow_lkup) {
|
|
kfree(wlan_static_if_flow_lkup);
|
|
}
|
|
|
|
#ifdef CONFIG_BCMDHD_PREALLOC_PKTIDMAP
|
|
if (wlan_static_dhd_pktid_map) {
|
|
kfree(wlan_static_dhd_pktid_map);
|
|
}
|
|
|
|
if (wlan_static_dhd_pktid_ioctl_map) {
|
|
kfree(wlan_static_dhd_pktid_ioctl_map);
|
|
}
|
|
#endif /* CONFIG_BCMDHD_PREALLOC_PKTIDMAP */
|
|
#else
|
|
if (wlan_static_dhd_wlfc_buf) {
|
|
kfree(wlan_static_dhd_wlfc_buf);
|
|
}
|
|
|
|
if (wlan_static_dhd_wlfc_hanger) {
|
|
kfree(wlan_static_dhd_wlfc_hanger);
|
|
}
|
|
#endif /* CONFIG_BCMDHD_PCIE */
|
|
if (wlan_static_dhd_info_buf) {
|
|
kfree(wlan_static_dhd_info_buf);
|
|
}
|
|
|
|
if (wlan_static_dhd_log_dump_buf) {
|
|
kfree(wlan_static_dhd_log_dump_buf);
|
|
}
|
|
|
|
if (wlan_static_dhd_log_dump_buf_ex) {
|
|
kfree(wlan_static_dhd_log_dump_buf_ex);
|
|
}
|
|
|
|
if (wlan_static_scan_buf1) {
|
|
kfree(wlan_static_scan_buf1);
|
|
}
|
|
|
|
if (wlan_static_scan_buf0) {
|
|
kfree(wlan_static_scan_buf0);
|
|
}
|
|
|
|
if (wlan_static_dhd_pktlog_dump_buf) {
|
|
kfree(wlan_static_dhd_pktlog_dump_buf);
|
|
}
|
|
|
|
if (wlan_static_stat_report_buf) {
|
|
kfree(wlan_static_stat_report_buf);
|
|
}
|
|
|
|
pr_err("Failed to mem_alloc for WLAN\n");
|
|
|
|
for (j = 0; j < i; j++) {
|
|
kfree(wlan_mem_array[j].mem_ptr);
|
|
}
|
|
|
|
i = WLAN_SKB_BUF_NUM;
|
|
|
|
err_skb_alloc:
|
|
pr_err("Failed to skb_alloc for WLAN\n");
|
|
for (j = 0; j < i; j++) {
|
|
dev_kfree_skb(wlan_static_skb[j]);
|
|
}
|
|
|
|
return -ENOMEM;
|
|
}
|
|
EXPORT_SYMBOL(dhd_init_wlan_mem);
|
|
#endif /* CONFIG_BROADCOM_WIFI_RESERVED_MEM */
|