From cde9070d9970eef1f7ec2360586c802a16230ad8 Mon Sep 17 00:00:00 2001
From: hc <hc@nodka.com>
Date: Fri, 10 May 2024 07:43:50 +0000
Subject: [PATCH] rtl88x2CE_WiFi_linux driver
---
kernel/drivers/xen/pvcalls-back.c | 35 +++++++++++++----------------------
1 files changed, 13 insertions(+), 22 deletions(-)
diff --git a/kernel/drivers/xen/pvcalls-back.c b/kernel/drivers/xen/pvcalls-back.c
index f94bb60..3c435e1 100644
--- a/kernel/drivers/xen/pvcalls-back.c
+++ b/kernel/drivers/xen/pvcalls-back.c
@@ -1,15 +1,6 @@
+// SPDX-License-Identifier: GPL-2.0-or-later
/*
* (c) 2017 Stefano Stabellini <stefano@aporeto.com>
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; either version 2 of the License, or
- * (at your option) any later version.
- *
- * 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 <linux/inet.h>
@@ -33,7 +24,7 @@
#define PVCALLS_VERSIONS "1"
#define MAX_RING_ORDER XENBUS_MAX_RING_GRANT_ORDER
-struct pvcalls_back_global {
+static struct pvcalls_back_global {
struct list_head frontends;
struct semaphore frontends_lock;
} pvcalls_back_global;
@@ -138,13 +129,13 @@
if (masked_prod < masked_cons) {
vec[0].iov_base = data->in + masked_prod;
vec[0].iov_len = wanted;
- iov_iter_kvec(&msg.msg_iter, ITER_KVEC|WRITE, vec, 1, wanted);
+ iov_iter_kvec(&msg.msg_iter, READ, vec, 1, wanted);
} else {
vec[0].iov_base = data->in + masked_prod;
vec[0].iov_len = array_size - masked_prod;
vec[1].iov_base = data->in;
vec[1].iov_len = wanted - vec[0].iov_len;
- iov_iter_kvec(&msg.msg_iter, ITER_KVEC|WRITE, vec, 2, wanted);
+ iov_iter_kvec(&msg.msg_iter, READ, vec, 2, wanted);
}
atomic_set(&map->read, 0);
@@ -197,13 +188,13 @@
if (pvcalls_mask(prod, array_size) > pvcalls_mask(cons, array_size)) {
vec[0].iov_base = data->out + pvcalls_mask(cons, array_size);
vec[0].iov_len = size;
- iov_iter_kvec(&msg.msg_iter, ITER_KVEC|READ, vec, 1, size);
+ iov_iter_kvec(&msg.msg_iter, WRITE, vec, 1, size);
} else {
vec[0].iov_base = data->out + pvcalls_mask(cons, array_size);
vec[0].iov_len = array_size - pvcalls_mask(cons, array_size);
vec[1].iov_base = data->out;
vec[1].iov_len = size - vec[0].iov_len;
- iov_iter_kvec(&msg.msg_iter, ITER_KVEC|READ, vec, 2, size);
+ iov_iter_kvec(&msg.msg_iter, WRITE, vec, 2, size);
}
atomic_set(&map->write, 0);
@@ -322,7 +313,7 @@
struct pvcalls_fedata *fedata,
uint64_t id,
grant_ref_t ref,
- uint32_t evtchn,
+ evtchn_port_t evtchn,
struct socket *sock)
{
int ret;
@@ -330,8 +321,10 @@
void *page;
map = kzalloc(sizeof(*map), GFP_KERNEL);
- if (map == NULL)
+ if (map == NULL) {
+ sock_release(sock);
return NULL;
+ }
map->fedata = fedata;
map->sock = sock;
@@ -423,10 +416,8 @@
req->u.connect.ref,
req->u.connect.evtchn,
sock);
- if (!map) {
+ if (!map)
ret = -EFAULT;
- sock_release(sock);
- }
out:
rsp = RING_GET_RESPONSE(&fedata->ring, fedata->ring.rsp_prod_pvt++);
@@ -567,7 +558,6 @@
sock);
if (!map) {
ret = -EFAULT;
- sock_release(sock);
goto out_error;
}
@@ -930,7 +920,8 @@
static int backend_connect(struct xenbus_device *dev)
{
- int err, evtchn;
+ int err;
+ evtchn_port_t evtchn;
grant_ref_t ring_ref;
struct pvcalls_fedata *fedata = NULL;
--
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