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8e3fb059
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8e3fb059
编写于
8月 19, 2014
作者:
A
Al Viro
浏览文件
操作
浏览文件
下载
电子邮件补丁
差异文件
rsxx debugfs inanity
check with the author of that horror... Signed-off-by:
N
Al Viro
<
viro@zeniv.linux.org.uk
>
上级
d88c2426
变更
1
隐藏空白更改
内联
并排
Showing
1 changed file
with
16 addition
and
65 deletion
+16
-65
drivers/block/rsxx/core.c
drivers/block/rsxx/core.c
+16
-65
未找到文件。
drivers/block/rsxx/core.c
浏览文件 @
8e3fb059
...
...
@@ -62,12 +62,6 @@ static DEFINE_SPINLOCK(rsxx_ida_lock);
/* --------------------Debugfs Setup ------------------- */
struct
rsxx_cram
{
u32
f_pos
;
u32
offset
;
void
*
i_private
;
};
static
int
rsxx_attr_pci_regs_show
(
struct
seq_file
*
m
,
void
*
p
)
{
struct
rsxx_cardinfo
*
card
=
m
->
private
;
...
...
@@ -184,93 +178,50 @@ static int rsxx_attr_pci_regs_open(struct inode *inode, struct file *file)
static
ssize_t
rsxx_cram_read
(
struct
file
*
fp
,
char
__user
*
ubuf
,
size_t
cnt
,
loff_t
*
ppos
)
{
struct
rsxx_cram
*
info
=
fp
->
private_data
;
struct
rsxx_cardinfo
*
card
=
info
->
i_private
;
struct
rsxx_cardinfo
*
card
=
file_inode
(
fp
)
->
i_private
;
char
*
buf
;
in
t
st
;
ssize_
t
st
;
buf
=
kzalloc
(
sizeof
(
*
buf
)
*
cnt
,
GFP_KERNEL
);
buf
=
kzalloc
(
cnt
,
GFP_KERNEL
);
if
(
!
buf
)
return
-
ENOMEM
;
info
->
f_pos
=
(
u32
)
*
ppos
+
info
->
offset
;
st
=
rsxx_creg_read
(
card
,
CREG_ADD_CRAM
+
info
->
f_pos
,
cnt
,
buf
,
1
);
if
(
st
)
return
st
;
st
=
copy_to_user
(
ubuf
,
buf
,
cnt
);
st
=
rsxx_creg_read
(
card
,
CREG_ADD_CRAM
+
(
u32
)
*
ppos
,
cnt
,
buf
,
1
);
if
(
!
st
)
st
=
copy_to_user
(
ubuf
,
buf
,
cnt
);
kfree
(
buf
);
if
(
st
)
return
st
;
info
->
offset
+=
cnt
;
kfree
(
buf
);
*
ppos
+=
cnt
;
return
cnt
;
}
static
ssize_t
rsxx_cram_write
(
struct
file
*
fp
,
const
char
__user
*
ubuf
,
size_t
cnt
,
loff_t
*
ppos
)
{
struct
rsxx_cram
*
info
=
fp
->
private_data
;
struct
rsxx_cardinfo
*
card
=
info
->
i_private
;
struct
rsxx_cardinfo
*
card
=
file_inode
(
fp
)
->
i_private
;
char
*
buf
;
in
t
st
;
ssize_
t
st
;
buf
=
kzalloc
(
sizeof
(
*
buf
)
*
cnt
,
GFP_KERNEL
);
buf
=
kzalloc
(
cnt
,
GFP_KERNEL
);
if
(
!
buf
)
return
-
ENOMEM
;
st
=
copy_from_user
(
buf
,
ubuf
,
cnt
);
if
(
!
st
)
st
=
rsxx_creg_write
(
card
,
CREG_ADD_CRAM
+
(
u32
)
*
ppos
,
cnt
,
buf
,
1
);
kfree
(
buf
);
if
(
st
)
return
st
;
info
->
f_pos
=
(
u32
)
*
ppos
+
info
->
offset
;
st
=
rsxx_creg_write
(
card
,
CREG_ADD_CRAM
+
info
->
f_pos
,
cnt
,
buf
,
1
);
if
(
st
)
return
st
;
info
->
offset
+=
cnt
;
kfree
(
buf
);
*
ppos
+=
cnt
;
return
cnt
;
}
static
int
rsxx_cram_open
(
struct
inode
*
inode
,
struct
file
*
file
)
{
struct
rsxx_cram
*
info
=
kzalloc
(
sizeof
(
*
info
),
GFP_KERNEL
);
if
(
!
info
)
return
-
ENOMEM
;
info
->
i_private
=
inode
->
i_private
;
info
->
f_pos
=
file
->
f_pos
;
file
->
private_data
=
info
;
return
0
;
}
static
int
rsxx_cram_release
(
struct
inode
*
inode
,
struct
file
*
file
)
{
struct
rsxx_cram
*
info
=
file
->
private_data
;
if
(
!
info
)
return
0
;
kfree
(
info
);
file
->
private_data
=
NULL
;
return
0
;
}
static
const
struct
file_operations
debugfs_cram_fops
=
{
.
owner
=
THIS_MODULE
,
.
open
=
rsxx_cram_open
,
.
read
=
rsxx_cram_read
,
.
write
=
rsxx_cram_write
,
.
release
=
rsxx_cram_release
,
};
static
const
struct
file_operations
debugfs_stats_fops
=
{
...
...
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