From 9370bb92b2d16684ee45cf24e879c93c509162da Mon Sep 17 00:00:00 2001
From: hc <hc@nodka.com>
Date: Thu, 19 Dec 2024 01:47:39 +0000
Subject: [PATCH] add wifi6 8852be driver
---
kernel/fs/ecryptfs/inode.c | 102 +++++++++++++++++++++++++++-----------------------
1 files changed, 55 insertions(+), 47 deletions(-)
diff --git a/kernel/fs/ecryptfs/inode.c b/kernel/fs/ecryptfs/inode.c
index 6578a1c..12616d5 100644
--- a/kernel/fs/ecryptfs/inode.c
+++ b/kernel/fs/ecryptfs/inode.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0-or-later
/**
* eCryptfs: Linux filesystem encryption layer
*
@@ -6,21 +7,6 @@
* Copyright (C) 2004-2007 International Business Machines Corp.
* Author(s): Michael A. Halcrow <mahalcro@us.ibm.com>
* Michael C. Thompsion <mcthomps@us.ibm.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.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program; if not, write to the Free Software
- * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA
- * 02111-1307, USA.
*/
#include <linux/file.h>
@@ -142,13 +128,20 @@
struct inode *inode)
{
struct dentry *lower_dentry = ecryptfs_dentry_to_lower(dentry);
- struct inode *lower_dir_inode = ecryptfs_inode_to_lower(dir);
struct dentry *lower_dir_dentry;
+ struct inode *lower_dir_inode;
int rc;
- dget(lower_dentry);
- lower_dir_dentry = lock_parent(lower_dentry);
- rc = vfs_unlink(lower_dir_inode, lower_dentry, NULL);
+ lower_dir_dentry = ecryptfs_dentry_to_lower(dentry->d_parent);
+ lower_dir_inode = d_inode(lower_dir_dentry);
+ inode_lock_nested(lower_dir_inode, I_MUTEX_PARENT);
+ dget(lower_dentry); // don't even try to make the lower negative
+ if (lower_dentry->d_parent != lower_dir_dentry)
+ rc = -EINVAL;
+ else if (d_unhashed(lower_dentry))
+ rc = -EINVAL;
+ else
+ rc = vfs_unlink(lower_dir_inode, lower_dentry, NULL);
if (rc) {
printk(KERN_ERR "Error in vfs_unlink; rc = [%d]\n", rc);
goto out_unlock;
@@ -156,10 +149,11 @@
fsstack_copy_attr_times(dir, lower_dir_inode);
set_nlink(inode, ecryptfs_inode_to_lower(inode)->i_nlink);
inode->i_ctime = dir->i_ctime;
- d_drop(dentry);
out_unlock:
- unlock_dir(lower_dir_dentry);
dput(lower_dentry);
+ inode_unlock(lower_dir_inode);
+ if (!rc)
+ d_drop(dentry);
return rc;
}
@@ -533,22 +527,30 @@
{
struct dentry *lower_dentry;
struct dentry *lower_dir_dentry;
+ struct inode *lower_dir_inode;
int rc;
lower_dentry = ecryptfs_dentry_to_lower(dentry);
- dget(dentry);
- lower_dir_dentry = lock_parent(lower_dentry);
- dget(lower_dentry);
- rc = vfs_rmdir(d_inode(lower_dir_dentry), lower_dentry);
- dput(lower_dentry);
- if (!rc && d_really_is_positive(dentry))
+ lower_dir_dentry = ecryptfs_dentry_to_lower(dentry->d_parent);
+ lower_dir_inode = d_inode(lower_dir_dentry);
+
+ inode_lock_nested(lower_dir_inode, I_MUTEX_PARENT);
+ dget(lower_dentry); // don't even try to make the lower negative
+ if (lower_dentry->d_parent != lower_dir_dentry)
+ rc = -EINVAL;
+ else if (d_unhashed(lower_dentry))
+ rc = -EINVAL;
+ else
+ rc = vfs_rmdir(lower_dir_inode, lower_dentry);
+ if (!rc) {
clear_nlink(d_inode(dentry));
- fsstack_copy_attr_times(dir, d_inode(lower_dir_dentry));
- set_nlink(dir, d_inode(lower_dir_dentry)->i_nlink);
- unlock_dir(lower_dir_dentry);
+ fsstack_copy_attr_times(dir, lower_dir_inode);
+ set_nlink(dir, lower_dir_inode->i_nlink);
+ }
+ dput(lower_dentry);
+ inode_unlock(lower_dir_inode);
if (!rc)
d_drop(dentry);
- dput(dentry);
return rc;
}
@@ -586,25 +588,32 @@
struct dentry *lower_new_dentry;
struct dentry *lower_old_dir_dentry;
struct dentry *lower_new_dir_dentry;
- struct dentry *trap = NULL;
+ struct dentry *trap;
struct inode *target_inode;
if (flags)
return -EINVAL;
+ lower_old_dir_dentry = ecryptfs_dentry_to_lower(old_dentry->d_parent);
+ lower_new_dir_dentry = ecryptfs_dentry_to_lower(new_dentry->d_parent);
+
lower_old_dentry = ecryptfs_dentry_to_lower(old_dentry);
lower_new_dentry = ecryptfs_dentry_to_lower(new_dentry);
- dget(lower_old_dentry);
- dget(lower_new_dentry);
- lower_old_dir_dentry = dget_parent(lower_old_dentry);
- lower_new_dir_dentry = dget_parent(lower_new_dentry);
+
target_inode = d_inode(new_dentry);
+
trap = lock_rename(lower_old_dir_dentry, lower_new_dir_dentry);
- /* source should not be ancestor of target */
- if (trap == lower_old_dentry) {
- rc = -EINVAL;
+ dget(lower_new_dentry);
+ rc = -EINVAL;
+ if (lower_old_dentry->d_parent != lower_old_dir_dentry)
goto out_lock;
- }
+ if (lower_new_dentry->d_parent != lower_new_dir_dentry)
+ goto out_lock;
+ if (d_unhashed(lower_old_dentry) || d_unhashed(lower_new_dentry))
+ goto out_lock;
+ /* source should not be ancestor of target */
+ if (trap == lower_old_dentry)
+ goto out_lock;
/* target should not be ancestor of source */
if (trap == lower_new_dentry) {
rc = -ENOTEMPTY;
@@ -622,11 +631,8 @@
if (new_dir != old_dir)
fsstack_copy_attr_all(old_dir, d_inode(lower_old_dir_dentry));
out_lock:
- unlock_rename(lower_old_dir_dentry, lower_new_dir_dentry);
- dput(lower_new_dir_dentry);
- dput(lower_old_dir_dentry);
dput(lower_new_dentry);
- dput(lower_old_dentry);
+ unlock_rename(lower_old_dir_dentry, lower_new_dir_dentry);
return rc;
}
@@ -1034,7 +1040,8 @@
goto out;
}
inode_lock(lower_inode);
- rc = __vfs_getxattr(lower_dentry, lower_inode, name, value, size);
+ rc = __vfs_getxattr(lower_dentry, lower_inode, name, value, size,
+ XATTR_NOSECURITY);
inode_unlock(lower_inode);
out:
return rc;
@@ -1119,7 +1126,8 @@
static int ecryptfs_xattr_get(const struct xattr_handler *handler,
struct dentry *dentry, struct inode *inode,
- const char *name, void *buffer, size_t size)
+ const char *name, void *buffer, size_t size,
+ int flags)
{
return ecryptfs_getxattr(dentry, inode, name, buffer, size);
}
@@ -1137,7 +1145,7 @@
}
}
-const struct xattr_handler ecryptfs_xattr_handler = {
+static const struct xattr_handler ecryptfs_xattr_handler = {
.prefix = "", /* match anything */
.get = ecryptfs_xattr_get,
.set = ecryptfs_xattr_set,
--
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