diff options
| author | Arnd Bergmann <arnd@arndb.de> | 2016-06-20 18:51:52 +0300 |
|---|---|---|
| committer | Marc Kleine-Budde <mkl@pengutronix.de> | 2016-06-23 12:23:49 +0300 |
| commit | 2781ff5c8fc7722e97503f96686bf6d7093069a9 (patch) | |
| tree | 8ed27b0a850a173cbfd1cab3227ee0c271ec48f0 /net | |
| parent | b95e5928fcc76d156352570858abdea7b2628efd (diff) | |
| download | linux-2781ff5c8fc7722e97503f96686bf6d7093069a9.tar.xz | |
can: only call can_stat_update with procfs
The change to leave out procfs support in CAN when CONFIG_PROC_FS
is not set was incomplete and leads to a build error:
net/built-in.o: In function `can_init':
:(.init.text+0x9858): undefined reference to `can_stat_update'
ERROR: "can_stat_update" [net/can/can.ko] undefined!
This tries a better approach, encapsulating all of the calls
within IS_ENABLED(), so we also leave out the timer function
from the object file.
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Fixes: a20fadf85312 ("can: build proc support only if CONFIG_PROC_FS is activated")
Signed-off-by: Marc Kleine-Budde <mkl@pengutronix.de>
Diffstat (limited to 'net')
| -rw-r--r-- | net/can/af_can.c | 22 | ||||
| -rw-r--r-- | net/can/af_can.h | 11 |
2 files changed, 12 insertions, 21 deletions
diff --git a/net/can/af_can.c b/net/can/af_can.c index 166d436196c1..1108079d934f 100644 --- a/net/can/af_can.c +++ b/net/can/af_can.c @@ -911,14 +911,14 @@ static __init int can_init(void) if (!rcv_cache) return -ENOMEM; - if (stats_timer) { + if (IS_ENABLED(CONFIG_PROC_FS)) { + if (stats_timer) { /* the statistics are updated every second (timer triggered) */ - setup_timer(&can_stattimer, can_stat_update, 0); - mod_timer(&can_stattimer, round_jiffies(jiffies + HZ)); - } else - can_stattimer.function = NULL; - - can_init_proc(); + setup_timer(&can_stattimer, can_stat_update, 0); + mod_timer(&can_stattimer, round_jiffies(jiffies + HZ)); + } + can_init_proc(); + } /* protocol register */ sock_register(&can_family_ops); @@ -933,10 +933,12 @@ static __exit void can_exit(void) { struct net_device *dev; - if (stats_timer) - del_timer_sync(&can_stattimer); + if (IS_ENABLED(CONFIG_PROC_FS)) { + if (stats_timer) + del_timer_sync(&can_stattimer); - can_remove_proc(); + can_remove_proc(); + } /* protocol unregister */ dev_remove_pack(&canfd_packet); diff --git a/net/can/af_can.h b/net/can/af_can.h index 38a79ff20022..fca0fe9fc45a 100644 --- a/net/can/af_can.h +++ b/net/can/af_can.h @@ -113,19 +113,8 @@ struct s_pstats { extern struct dev_rcv_lists can_rx_alldev_list; /* function prototypes for the CAN networklayer procfs (proc.c) */ -#ifdef CONFIG_PROC_FS void can_init_proc(void); void can_remove_proc(void); -#else -static inline void can_init_proc(void) -{ - pr_info("can: Can't create /proc/net/can. CONFIG_PROC_FS missing!\n"); -} - -static inline void can_remove_proc(void) -{ -} -#endif void can_stat_update(unsigned long data); /* structures and variables from af_can.c needed in proc.c for reading */ |