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Date: Wed, 15 Mar 2017 12:00:02 +0800
From: kbuild test robot <lkp@...el.com>
To: mshan <educha997@...il.com>
Cc: kbuild-all@...org, gregkh@...uxfoundation.org, domdevlin@...e.fr,
bhumirks@...il.com, chopin.simon@...il.com, mohsinshan1k@...il.com,
peter@...leysoftware.com, devel@...verdev.osuosl.org,
linux-kernel@...r.kernel.org
Subject: Re: [PATCH] Fixed a minor coding style warning. Arguments in the
macros should be coverd in brackets to aviod any precedence issues.
Hi mshan,
[auto build test ERROR on staging/staging-testing]
[also build test ERROR on v4.11-rc2 next-20170310]
[if your patch is applied to the wrong git tree, please drop us a note to help improve the system]
url: https://github.com/0day-ci/linux/commits/mshan/Fixed-a-minor-coding-style-warning-Arguments-in-the-macros-should-be-coverd-in-brackets-to-aviod-any-precedence-issues/20170315-084955
config: x86_64-rhel (attached as .config)
compiler: gcc-6 (Debian 6.2.0-3) 6.2.0 20160901
reproduce:
# save the attached .config to linux build tree
make ARCH=x86_64
All errors (new ones prefixed by >>):
In file included from drivers/staging/fwserial/fwserial.c:21:0:
drivers/staging/fwserial/fwserial.c: In function 'fwtty_log_tx_error':
>> drivers/staging/fwserial/fwserial.c:101:33: error: expected identifier before '(' token
#define to_device(a, b) ((a)->(b))
^
include/linux/device.h:1377:13: note: in definition of macro 'dev_level_ratelimited'
dev_level(dev, fmt, ##__VA_ARGS__); \
^~~
drivers/staging/fwserial/fwserial.c:111:2: note: in expansion of macro 'dev_err_ratelimited'
dev_err_ratelimited(to_device(p, device), fmt, ##__VA_ARGS__)
^~~~~~~~~~~~~~~~~~~
drivers/staging/fwserial/fwserial.c:111:22: note: in expansion of macro 'to_device'
dev_err_ratelimited(to_device(p, device), fmt, ##__VA_ARGS__)
^~~~~~~~~
drivers/staging/fwserial/fwserial.c:201:3: note: in expansion of macro 'fwtty_err_ratelimited'
fwtty_err_ratelimited(port, "card busy\n");
^~~~~~~~~~~~~~~~~~~~~
>> drivers/staging/fwserial/fwserial.c:101:33: error: expected identifier before '(' token
#define to_device(a, b) ((a)->(b))
^
include/linux/device.h:1377:13: note: in definition of macro 'dev_level_ratelimited'
dev_level(dev, fmt, ##__VA_ARGS__); \
^~~
drivers/staging/fwserial/fwserial.c:111:2: note: in expansion of macro 'dev_err_ratelimited'
dev_err_ratelimited(to_device(p, device), fmt, ##__VA_ARGS__)
^~~~~~~~~~~~~~~~~~~
drivers/staging/fwserial/fwserial.c:111:22: note: in expansion of macro 'to_device'
dev_err_ratelimited(to_device(p, device), fmt, ##__VA_ARGS__)
^~~~~~~~~
drivers/staging/fwserial/fwserial.c:204:3: note: in expansion of macro 'fwtty_err_ratelimited'
fwtty_err_ratelimited(port, "bad unit addr or write length\n");
^~~~~~~~~~~~~~~~~~~~~
>> drivers/staging/fwserial/fwserial.c:101:33: error: expected identifier before '(' token
#define to_device(a, b) ((a)->(b))
^
include/linux/device.h:1377:13: note: in definition of macro 'dev_level_ratelimited'
dev_level(dev, fmt, ##__VA_ARGS__); \
^~~
drivers/staging/fwserial/fwserial.c:111:2: note: in expansion of macro 'dev_err_ratelimited'
dev_err_ratelimited(to_device(p, device), fmt, ##__VA_ARGS__)
^~~~~~~~~~~~~~~~~~~
drivers/staging/fwserial/fwserial.c:111:22: note: in expansion of macro 'to_device'
dev_err_ratelimited(to_device(p, device), fmt, ##__VA_ARGS__)
^~~~~~~~~
drivers/staging/fwserial/fwserial.c:207:3: note: in expansion of macro 'fwtty_err_ratelimited'
fwtty_err_ratelimited(port, "failed rx\n");
^~~~~~~~~~~~~~~~~~~~~
>> drivers/staging/fwserial/fwserial.c:101:33: error: expected identifier before '(' token
#define to_device(a, b) ((a)->(b))
^
include/linux/device.h:1377:13: note: in definition of macro 'dev_level_ratelimited'
dev_level(dev, fmt, ##__VA_ARGS__); \
^~~
drivers/staging/fwserial/fwserial.c:111:2: note: in expansion of macro 'dev_err_ratelimited'
dev_err_ratelimited(to_device(p, device), fmt, ##__VA_ARGS__)
^~~~~~~~~~~~~~~~~~~
drivers/staging/fwserial/fwserial.c:111:22: note: in expansion of macro 'to_device'
dev_err_ratelimited(to_device(p, device), fmt, ##__VA_ARGS__)
^~~~~~~~~
drivers/staging/fwserial/fwserial.c:210:3: note: in expansion of macro 'fwtty_err_ratelimited'
fwtty_err_ratelimited(port, "missing ack\n");
^~~~~~~~~~~~~~~~~~~~~
>> drivers/staging/fwserial/fwserial.c:101:33: error: expected identifier before '(' token
#define to_device(a, b) ((a)->(b))
^
include/linux/device.h:1377:13: note: in definition of macro 'dev_level_ratelimited'
dev_level(dev, fmt, ##__VA_ARGS__); \
^~~
drivers/staging/fwserial/fwserial.c:111:2: note: in expansion of macro 'dev_err_ratelimited'
dev_err_ratelimited(to_device(p, device), fmt, ##__VA_ARGS__)
^~~~~~~~~~~~~~~~~~~
drivers/staging/fwserial/fwserial.c:111:22: note: in expansion of macro 'to_device'
dev_err_ratelimited(to_device(p, device), fmt, ##__VA_ARGS__)
^~~~~~~~~
drivers/staging/fwserial/fwserial.c:213:3: note: in expansion of macro 'fwtty_err_ratelimited'
fwtty_err_ratelimited(port, "remote busy\n");
^~~~~~~~~~~~~~~~~~~~~
>> drivers/staging/fwserial/fwserial.c:101:33: error: expected identifier before '(' token
#define to_device(a, b) ((a)->(b))
^
include/linux/device.h:1377:13: note: in definition of macro 'dev_level_ratelimited'
dev_level(dev, fmt, ##__VA_ARGS__); \
^~~
drivers/staging/fwserial/fwserial.c:111:2: note: in expansion of macro 'dev_err_ratelimited'
dev_err_ratelimited(to_device(p, device), fmt, ##__VA_ARGS__)
^~~~~~~~~~~~~~~~~~~
drivers/staging/fwserial/fwserial.c:111:22: note: in expansion of macro 'to_device'
dev_err_ratelimited(to_device(p, device), fmt, ##__VA_ARGS__)
^~~~~~~~~
drivers/staging/fwserial/fwserial.c:216:3: note: in expansion of macro 'fwtty_err_ratelimited'
fwtty_err_ratelimited(port, "failed tx: %d\n", rcode);
^~~~~~~~~~~~~~~~~~~~~
In file included from include/linux/printk.h:329:0,
from include/linux/kernel.h:13,
from arch/x86/include/asm/percpu.h:44,
from arch/x86/include/asm/current.h:5,
from include/linux/sched.h:11,
from drivers/staging/fwserial/fwserial.c:19:
drivers/staging/fwserial/fwserial.c: In function '__fwtty_restart_tx':
>> drivers/staging/fwserial/fwserial.c:101:33: error: expected identifier before '(' token
#define to_device(a, b) ((a)->(b))
^
include/linux/dynamic_debug.h:134:34: note: in definition of macro 'dynamic_dev_dbg'
__dynamic_dev_dbg(&descriptor, dev, fmt, \
^~~
drivers/staging/fwserial/fwserial.c:109:2: note: in expansion of macro 'dev_dbg'
dev_dbg(to_device(p, device), "%s: " fmt, __func__, ##__VA_ARGS__)
^~~~~~~
drivers/staging/fwserial/fwserial.c:109:10: note: in expansion of macro 'to_device'
dev_dbg(to_device(p, device), "%s: " fmt, __func__, ##__VA_ARGS__)
^~~~~~~~~
drivers/staging/fwserial/fwserial.c:290:2: note: in expansion of macro 'fwtty_dbg'
fwtty_dbg(port, "fifo len: %d avail: %d\n", len, avail);
^~~~~~~~~
drivers/staging/fwserial/fwserial.c: In function 'fwtty_update_port_status':
>> drivers/staging/fwserial/fwserial.c:101:33: error: expected identifier before '(' token
#define to_device(a, b) ((a)->(b))
^
include/linux/dynamic_debug.h:134:34: note: in definition of macro 'dynamic_dev_dbg'
__dynamic_dev_dbg(&descriptor, dev, fmt, \
^~~
drivers/staging/fwserial/fwserial.c:109:2: note: in expansion of macro 'dev_dbg'
dev_dbg(to_device(p, device), "%s: " fmt, __func__, ##__VA_ARGS__)
^~~~~~~
drivers/staging/fwserial/fwserial.c:109:10: note: in expansion of macro 'to_device'
dev_dbg(to_device(p, device), "%s: " fmt, __func__, ##__VA_ARGS__)
^~~~~~~~~
drivers/staging/fwserial/fwserial.c:327:2: note: in expansion of macro 'fwtty_dbg'
fwtty_dbg(port, "status: %x delta: %x\n", status, delta);
^~~~~~~~~
drivers/staging/fwserial/fwserial.c: In function 'fwtty_emit_breaks':
>> drivers/staging/fwserial/fwserial.c:101:33: error: expected identifier before '(' token
#define to_device(a, b) ((a)->(b))
^
include/linux/dynamic_debug.h:134:34: note: in definition of macro 'dynamic_dev_dbg'
__dynamic_dev_dbg(&descriptor, dev, fmt, \
^~~
drivers/staging/fwserial/fwserial.c:109:2: note: in expansion of macro 'dev_dbg'
dev_dbg(to_device(p, device), "%s: " fmt, __func__, ##__VA_ARGS__)
^~~~~~~
drivers/staging/fwserial/fwserial.c:109:10: note: in expansion of macro 'to_device'
dev_dbg(to_device(p, device), "%s: " fmt, __func__, ##__VA_ARGS__)
^~~~~~~~~
drivers/staging/fwserial/fwserial.c:523:2: note: in expansion of macro 'fwtty_dbg'
fwtty_dbg(port, "sending %d brks\n", n);
^~~~~~~~~
drivers/staging/fwserial/fwserial.c: In function 'fwtty_rx':
>> drivers/staging/fwserial/fwserial.c:101:33: error: expected identifier before '(' token
#define to_device(a, b) ((a)->(b))
^
include/linux/dynamic_debug.h:134:34: note: in definition of macro 'dynamic_dev_dbg'
__dynamic_dev_dbg(&descriptor, dev, fmt, \
^~~
drivers/staging/fwserial/fwserial.c:109:2: note: in expansion of macro 'dev_dbg'
dev_dbg(to_device(p, device), "%s: " fmt, __func__, ##__VA_ARGS__)
^~~~~~~
drivers/staging/fwserial/fwserial.c:109:10: note: in expansion of macro 'to_device'
dev_dbg(to_device(p, device), "%s: " fmt, __func__, ##__VA_ARGS__)
^~~~~~~~~
drivers/staging/fwserial/fwserial.c:547:2: note: in expansion of macro 'fwtty_dbg'
fwtty_dbg(port, "%d\n", n);
^~~~~~~~~
In file included from drivers/staging/fwserial/fwserial.c:21:0:
>> drivers/staging/fwserial/fwserial.c:101:33: error: expected identifier before '(' token
#define to_device(a, b) ((a)->(b))
^
include/linux/device.h:1377:13: note: in definition of macro 'dev_level_ratelimited'
dev_level(dev, fmt, ##__VA_ARGS__); \
^~~
drivers/staging/fwserial/fwserial.c:111:2: note: in expansion of macro 'dev_err_ratelimited'
dev_err_ratelimited(to_device(p, device), fmt, ##__VA_ARGS__)
^~~~~~~~~~~~~~~~~~~
drivers/staging/fwserial/fwserial.c:111:22: note: in expansion of macro 'to_device'
dev_err_ratelimited(to_device(p, device), fmt, ##__VA_ARGS__)
^~~~~~~~~
drivers/staging/fwserial/fwserial.c:587:3: note: in expansion of macro 'fwtty_err_ratelimited'
fwtty_err_ratelimited(port, "flip buffer overrun\n");
^~~~~~~~~~~~~~~~~~~~~
drivers/staging/fwserial/fwserial.c: In function 'fwtty_port_handler':
>> drivers/staging/fwserial/fwserial.c:101:33: error: expected identifier before '(' token
#define to_device(a, b) ((a)->(b))
^
include/linux/device.h:1377:13: note: in definition of macro 'dev_level_ratelimited'
dev_level(dev, fmt, ##__VA_ARGS__); \
^~~
drivers/staging/fwserial/fwserial.c:111:2: note: in expansion of macro 'dev_err_ratelimited'
dev_err_ratelimited(to_device(p, device), fmt, ##__VA_ARGS__)
^~~~~~~~~~~~~~~~~~~
drivers/staging/fwserial/fwserial.c:111:22: note: in expansion of macro 'to_device'
dev_err_ratelimited(to_device(p, device), fmt, ##__VA_ARGS__)
^~~~~~~~~
drivers/staging/fwserial/fwserial.c:630:3: note: in expansion of macro 'fwtty_err_ratelimited'
fwtty_err_ratelimited(port, "ignoring unauthenticated data\n");
^~~~~~~~~~~~~~~~~~~~~
In file included from include/linux/printk.h:329:0,
from include/linux/kernel.h:13,
from arch/x86/include/asm/percpu.h:44,
from arch/x86/include/asm/current.h:5,
from include/linux/sched.h:11,
from drivers/staging/fwserial/fwserial.c:19:
drivers/staging/fwserial/fwserial.c: In function 'fwtty_tx_complete':
>> drivers/staging/fwserial/fwserial.c:101:33: error: expected identifier before '(' token
#define to_device(a, b) ((a)->(b))
^
include/linux/dynamic_debug.h:134:34: note: in definition of macro 'dynamic_dev_dbg'
__dynamic_dev_dbg(&descriptor, dev, fmt, \
^~~
drivers/staging/fwserial/fwserial.c:109:2: note: in expansion of macro 'dev_dbg'
dev_dbg(to_device(p, device), "%s: " fmt, __func__, ##__VA_ARGS__)
^~~~~~~
drivers/staging/fwserial/fwserial.c:109:10: note: in expansion of macro 'to_device'
dev_dbg(to_device(p, device), "%s: " fmt, __func__, ##__VA_ARGS__)
^~~~~~~~~
drivers/staging/fwserial/fwserial.c:687:2: note: in expansion of macro 'fwtty_dbg'
fwtty_dbg(port, "rcode: %d\n", rcode);
^~~~~~~~~
drivers/staging/fwserial/fwserial.c: In function 'fwtty_tx':
>> drivers/staging/fwserial/fwserial.c:101:33: error: expected identifier before '(' token
#define to_device(a, b) ((a)->(b))
^
include/linux/dynamic_debug.h:134:34: note: in definition of macro 'dynamic_dev_dbg'
__dynamic_dev_dbg(&descriptor, dev, fmt, \
^~~
drivers/staging/fwserial/fwserial.c:109:2: note: in expansion of macro 'dev_dbg'
dev_dbg(to_device(p, device), "%s: " fmt, __func__, ##__VA_ARGS__)
^~~~~~~
drivers/staging/fwserial/fwserial.c:109:10: note: in expansion of macro 'to_device'
dev_dbg(to_device(p, device), "%s: " fmt, __func__, ##__VA_ARGS__)
^~~~~~~~~
drivers/staging/fwserial/fwserial.c:750:3: note: in expansion of macro 'fwtty_dbg'
fwtty_dbg(port, "out: %u rem: %d\n", txn->dma_pended.len, n);
^~~~~~~~~
In file included from drivers/staging/fwserial/fwserial.c:21:0:
>> drivers/staging/fwserial/fwserial.c:101:33: error: expected identifier before '(' token
#define to_device(a, b) ((a)->(b))
^
include/linux/device.h:1377:13: note: in definition of macro 'dev_level_ratelimited'
dev_level(dev, fmt, ##__VA_ARGS__); \
^~~
drivers/staging/fwserial/fwserial.c:111:2: note: in expansion of macro 'dev_err_ratelimited'
dev_err_ratelimited(to_device(p, device), fmt, ##__VA_ARGS__)
^~~~~~~~~~~~~~~~~~~
drivers/staging/fwserial/fwserial.c:111:22: note: in expansion of macro 'to_device'
dev_err_ratelimited(to_device(p, device), fmt, ##__VA_ARGS__)
^~~~~~~~~
drivers/staging/fwserial/fwserial.c:760:5: note: in expansion of macro 'fwtty_err_ratelimited'
fwtty_err_ratelimited(port, "fifo err: %d\n",
^~~~~~~~~~~~~~~~~~~~~
In file included from include/linux/printk.h:329:0,
from include/linux/kernel.h:13,
from arch/x86/include/asm/percpu.h:44,
from arch/x86/include/asm/current.h:5,
from include/linux/sched.h:11,
from drivers/staging/fwserial/fwserial.c:19:
drivers/staging/fwserial/fwserial.c: In function 'fwtty_write_xchar':
>> drivers/staging/fwserial/fwserial.c:101:33: error: expected identifier before '(' token
#define to_device(a, b) ((a)->(b))
^
include/linux/dynamic_debug.h:134:34: note: in definition of macro 'dynamic_dev_dbg'
__dynamic_dev_dbg(&descriptor, dev, fmt, \
^~~
drivers/staging/fwserial/fwserial.c:109:2: note: in expansion of macro 'dev_dbg'
dev_dbg(to_device(p, device), "%s: " fmt, __func__, ##__VA_ARGS__)
^~~~~~~
drivers/staging/fwserial/fwserial.c:109:10: note: in expansion of macro 'to_device'
dev_dbg(to_device(p, device), "%s: " fmt, __func__, ##__VA_ARGS__)
^~~~~~~~~
drivers/staging/fwserial/fwserial.c:820:2: note: in expansion of macro 'fwtty_dbg'
fwtty_dbg(port, "%02x\n", ch);
^~~~~~~~~
drivers/staging/fwserial/fwserial.c: In function 'fwtty_port_dtr_rts':
>> drivers/staging/fwserial/fwserial.c:101:33: error: expected identifier before '(' token
#define to_device(a, b) ((a)->(b))
^
include/linux/dynamic_debug.h:134:34: note: in definition of macro 'dynamic_dev_dbg'
__dynamic_dev_dbg(&descriptor, dev, fmt, \
^~~
drivers/staging/fwserial/fwserial.c:109:2: note: in expansion of macro 'dev_dbg'
dev_dbg(to_device(p, device), "%s: " fmt, __func__, ##__VA_ARGS__)
^~~~~~~
drivers/staging/fwserial/fwserial.c:109:10: note: in expansion of macro 'to_device'
dev_dbg(to_device(p, device), "%s: " fmt, __func__, ##__VA_ARGS__)
^~~~~~~~~
drivers/staging/fwserial/fwserial.c:905:2: note: in expansion of macro 'fwtty_dbg'
fwtty_dbg(port, "on/off: %d\n", on);
^~~~~~~~~
drivers/staging/fwserial/fwserial.c: In function 'fwtty_port_carrier_raised':
>> drivers/staging/fwserial/fwserial.c:101:33: error: expected identifier before '(' token
#define to_device(a, b) ((a)->(b))
^
include/linux/dynamic_debug.h:134:34: note: in definition of macro 'dynamic_dev_dbg'
__dynamic_dev_dbg(&descriptor, dev, fmt, \
^~~
drivers/staging/fwserial/fwserial.c:109:2: note: in expansion of macro 'dev_dbg'
dev_dbg(to_device(p, device), "%s: " fmt, __func__, ##__VA_ARGS__)
^~~~~~~
drivers/staging/fwserial/fwserial.c:109:10: note: in expansion of macro 'to_device'
dev_dbg(to_device(p, device), "%s: " fmt, __func__, ##__VA_ARGS__)
^~~~~~~~~
drivers/staging/fwserial/fwserial.c:933:2: note: in expansion of macro 'fwtty_dbg'
fwtty_dbg(port, "%d\n", rc);
^~~~~~~~~
drivers/staging/fwserial/fwserial.c: In function 'fwtty_write':
>> drivers/staging/fwserial/fwserial.c:101:33: error: expected identifier before '(' token
#define to_device(a, b) ((a)->(b))
^
include/linux/dynamic_debug.h:134:34: note: in definition of macro 'dynamic_dev_dbg'
__dynamic_dev_dbg(&descriptor, dev, fmt, \
^~~
drivers/staging/fwserial/fwserial.c:109:2: note: in expansion of macro 'dev_dbg'
dev_dbg(to_device(p, device), "%s: " fmt, __func__, ##__VA_ARGS__)
^~~~~~~
drivers/staging/fwserial/fwserial.c:109:10: note: in expansion of macro 'to_device'
dev_dbg(to_device(p, device), "%s: " fmt, __func__, ##__VA_ARGS__)
^~~~~~~~~
drivers/staging/fwserial/fwserial.c:1111:2: note: in expansion of macro 'fwtty_dbg'
fwtty_dbg(port, "%d\n", c);
^~~~~~~~~
drivers/staging/fwserial/fwserial.c: In function 'fwtty_write_room':
>> drivers/staging/fwserial/fwserial.c:101:33: error: expected identifier before '(' token
#define to_device(a, b) ((a)->(b))
^
include/linux/dynamic_debug.h:134:34: note: in definition of macro 'dynamic_dev_dbg'
__dynamic_dev_dbg(&descriptor, dev, fmt, \
^~~
drivers/staging/fwserial/fwserial.c:109:2: note: in expansion of macro 'dev_dbg'
dev_dbg(to_device(p, device), "%s: " fmt, __func__, ##__VA_ARGS__)
^~~~~~~
drivers/staging/fwserial/fwserial.c:109:10: note: in expansion of macro 'to_device'
dev_dbg(to_device(p, device), "%s: " fmt, __func__, ##__VA_ARGS__)
^~~~~~~~~
drivers/staging/fwserial/fwserial.c:1138:2: note: in expansion of macro 'fwtty_dbg'
fwtty_dbg(port, "%d\n", n);
^~~~~~~~~
drivers/staging/fwserial/fwserial.c: In function 'fwtty_chars_in_buffer':
vim +101 drivers/staging/fwserial/fwserial.c
15 */
16
17 #define pr_fmt(fmt) KBUILD_MODNAME ": " fmt
18
19 #include <linux/sched.h>
20 #include <linux/slab.h>
> 21 #include <linux/device.h>
22 #include <linux/mod_devicetable.h>
23 #include <linux/rculist.h>
24 #include <linux/workqueue.h>
25 #include <linux/ratelimit.h>
26 #include <linux/bug.h>
27 #include <linux/uaccess.h>
28
29 #include "fwserial.h"
30
31 #define be32_to_u64(hi, lo) ((u64)be32_to_cpu(hi) << 32 | be32_to_cpu(lo))
32
33 #define LINUX_VENDOR_ID 0xd00d1eU /* same id used in card root directory */
34 #define FWSERIAL_VERSION 0x00e81cU /* must be unique within LINUX_VENDOR_ID */
35
36 /* configurable options */
37 static int num_ttys = 4; /* # of std ttys to create per fw_card */
38 /* - doubles as loopback port index */
39 static bool auto_connect = true; /* try to VIRT_CABLE to every peer */
40 static bool create_loop_dev = true; /* create a loopback device for each card */
41
42 module_param_named(ttys, num_ttys, int, 0644);
43 module_param_named(auto, auto_connect, bool, 0644);
44 module_param_named(loop, create_loop_dev, bool, 0644);
45
46 /*
47 * Threshold below which the tty is woken for writing
48 * - should be equal to WAKEUP_CHARS in drivers/tty/n_tty.c because
49 * even if the writer is woken, n_tty_poll() won't set POLLOUT until
50 * our fifo is below this level
51 */
52 #define WAKEUP_CHARS 256
53
54 /**
55 * fwserial_list: list of every fw_serial created for each fw_card
56 * See discussion in fwserial_probe.
57 */
58 static LIST_HEAD(fwserial_list);
59 static DEFINE_MUTEX(fwserial_list_mutex);
60
61 /**
62 * port_table: array of tty ports allocated to each fw_card
63 *
64 * tty ports are allocated during probe when an fw_serial is first
65 * created for a given fw_card. Ports are allocated in a contiguous block,
66 * each block consisting of 'num_ports' ports.
67 */
68 static struct fwtty_port *port_table[MAX_TOTAL_PORTS];
69 static DEFINE_MUTEX(port_table_lock);
70 static bool port_table_corrupt;
71 #define FWTTY_INVALID_INDEX MAX_TOTAL_PORTS
72
73 #define loop_idx(port) (((port)->index) / num_ports)
74 #define table_idx(loop) ((loop) * num_ports + num_ttys)
75
76 /* total # of tty ports created per fw_card */
77 static int num_ports;
78
79 /* slab used as pool for struct fwtty_transactions */
80 static struct kmem_cache *fwtty_txn_cache;
81
82 struct tty_driver *fwtty_driver;
83 static struct tty_driver *fwloop_driver;
84
85 static struct dentry *fwserial_debugfs;
86
87 struct fwtty_transaction;
88 typedef void (*fwtty_transaction_cb)(struct fw_card *card, int rcode,
89 void *data, size_t length,
90 struct fwtty_transaction *txn);
91
92 struct fwtty_transaction {
93 struct fw_transaction fw_txn;
94 fwtty_transaction_cb callback;
95 struct fwtty_port *port;
96 union {
97 struct dma_pending dma_pended;
98 };
99 };
100
> 101 #define to_device(a, b) ((a)->(b))
102 #define fwtty_err(p, fmt, ...) \
103 dev_err(to_device(p, device), fmt, ##__VA_ARGS__)
104 #define fwtty_info(p, fmt, ...) \
---
0-DAY kernel test infrastructure Open Source Technology Center
https://lists.01.org/pipermail/kbuild-all Intel Corporation
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