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1// SPDX-License-Identifier: ISC2/*3 * Copyright (c) 2012 Broadcom Corporation4 */5#include <linux/debugfs.h>6#include <linux/netdevice.h>7#include <linux/module.h>8#include <linux/devcoredump.h>9 10#include <brcmu_wifi.h>11#include <brcmu_utils.h>12#include "core.h"13#include "bus.h"14#include "fweh.h"15#include "debug.h"16 17int brcmf_debug_create_memdump(struct brcmf_bus *bus, const void *data,18 size_t len)19{20 void *dump;21 size_t ramsize;22 int err;23 24 ramsize = brcmf_bus_get_ramsize(bus);25 if (!ramsize)26 return -ENOTSUPP;27 28 dump = vzalloc(len + ramsize);29 if (!dump)30 return -ENOMEM;31 32 if (data && len > 0)33 memcpy(dump, data, len);34 err = brcmf_bus_get_memdump(bus, dump + len, ramsize);35 if (err) {36 vfree(dump);37 return err;38 }39 40 dev_coredumpv(bus->dev, dump, len + ramsize, GFP_KERNEL);41 42 return 0;43}44 45struct dentry *brcmf_debugfs_get_devdir(struct brcmf_pub *drvr)46{47 return drvr->wiphy->debugfsdir;48}49 50void brcmf_debugfs_add_entry(struct brcmf_pub *drvr, const char *fn,51 int (*read_fn)(struct seq_file *seq, void *data))52{53 WARN(!drvr->wiphy->debugfsdir, "wiphy not (yet) registered\n");54 debugfs_create_devm_seqfile(drvr->bus_if->dev, fn,55 drvr->wiphy->debugfsdir, read_fn);56}57