cachepc-linux

Fork of AMDESE/linux with modifications for CachePC side-channel attack
git clone https://git.sinitax.com/sinitax/cachepc-linux
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proto.c (1596B)

      1// SPDX-License-Identifier: ISC
      2/*
      3 * Copyright (c) 2013 Broadcom Corporation
      4 */
      5
      6
      7 #include <linux/types.h>
      8#include <linux/slab.h>
      9#include <linux/netdevice.h>
     10
     11#include <brcmu_wifi.h>
     12#include "core.h"
     13#include "bus.h"
     14#include "debug.h"
     15#include "proto.h"
     16#include "bcdc.h"
     17#include "msgbuf.h"
     18
     19
     20int brcmf_proto_attach(struct brcmf_pub *drvr)
     21{
     22	struct brcmf_proto *proto;
     23
     24	brcmf_dbg(TRACE, "Enter\n");
     25
     26	proto = kzalloc(sizeof(*proto), GFP_ATOMIC);
     27	if (!proto)
     28		goto fail;
     29
     30	drvr->proto = proto;
     31
     32	if (drvr->bus_if->proto_type == BRCMF_PROTO_BCDC) {
     33		if (brcmf_proto_bcdc_attach(drvr))
     34			goto fail;
     35	} else if (drvr->bus_if->proto_type == BRCMF_PROTO_MSGBUF) {
     36		if (brcmf_proto_msgbuf_attach(drvr))
     37			goto fail;
     38	} else {
     39		bphy_err(drvr, "Unsupported proto type %d\n",
     40			 drvr->bus_if->proto_type);
     41		goto fail;
     42	}
     43	if (!proto->tx_queue_data || (proto->hdrpull == NULL) ||
     44	    (proto->query_dcmd == NULL) || (proto->set_dcmd == NULL) ||
     45	    (proto->configure_addr_mode == NULL) ||
     46	    (proto->delete_peer == NULL) || (proto->add_tdls_peer == NULL) ||
     47	    (proto->debugfs_create == NULL)) {
     48		bphy_err(drvr, "Not all proto handlers have been installed\n");
     49		goto fail;
     50	}
     51	return 0;
     52
     53fail:
     54	kfree(proto);
     55	drvr->proto = NULL;
     56	return -ENOMEM;
     57}
     58
     59void brcmf_proto_detach(struct brcmf_pub *drvr)
     60{
     61	brcmf_dbg(TRACE, "Enter\n");
     62
     63	if (drvr->proto) {
     64		if (drvr->bus_if->proto_type == BRCMF_PROTO_BCDC)
     65			brcmf_proto_bcdc_detach(drvr);
     66		else if (drvr->bus_if->proto_type == BRCMF_PROTO_MSGBUF)
     67			brcmf_proto_msgbuf_detach(drvr);
     68		kfree(drvr->proto);
     69		drvr->proto = NULL;
     70	}
     71}