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| author | Arnd Bergmann <arnd@arndb.de> | 2015-01-28 18:00:11 +0300 |
|---|---|---|
| committer | Corey Minyard <cminyard@mvista.com> | 2015-02-20 05:58:18 +0300 |
| commit | 191cc41405188780e5f8f3c90d84a1e747d962e9 (patch) | |
| tree | ddc2a596ae5f6abfe58271ffec0417f40685f05c /drivers | |
| parent | 48862ea2ce86370b708614506d93f07ed09b066f (diff) | |
| download | linux-191cc41405188780e5f8f3c90d84a1e747d962e9.tar.xz | |
ipmi: avoid gcc warning
A new harmless warning has come up on ARM builds with gcc-4.9:
drivers/char/ipmi/ipmi_msghandler.c: In function 'smi_send.isra.11':
include/linux/spinlock.h:372:95: warning: 'flags' may be used uninitialized in this function [-Wmaybe-uninitialized]
raw_spin_unlock_irqrestore(&lock->rlock, flags);
^
drivers/char/ipmi/ipmi_msghandler.c:1490:16: note: 'flags' was declared here
unsigned long flags;
^
This could be worked around by initializing the 'flags' variable, but it
seems better to rework the code to avoid this.
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Fixes: 7ea0ed2b5be81 ("ipmi: Make the message handler easier to use for SMI interfaces")
Signed-off-by: Corey Minyard <cminyard@mvista.com>
Diffstat (limited to 'drivers')
| -rw-r--r-- | drivers/char/ipmi/ipmi_msghandler.c | 29 |
1 files changed, 21 insertions, 8 deletions
diff --git a/drivers/char/ipmi/ipmi_msghandler.c b/drivers/char/ipmi/ipmi_msghandler.c index ab595410169d..4891c39b3259 100644 --- a/drivers/char/ipmi/ipmi_msghandler.c +++ b/drivers/char/ipmi/ipmi_msghandler.c @@ -1483,14 +1483,10 @@ static inline void format_lan_msg(struct ipmi_smi_msg *smi_msg, smi_msg->msgid = msgid; } -static void smi_send(ipmi_smi_t intf, struct ipmi_smi_handlers *handlers, - struct ipmi_smi_msg *smi_msg, int priority) +static struct ipmi_smi_msg *smi_add_send_msg(ipmi_smi_t intf, + struct ipmi_smi_msg *smi_msg, + int priority) { - int run_to_completion = intf->run_to_completion; - unsigned long flags; - - if (!run_to_completion) - spin_lock_irqsave(&intf->xmit_msgs_lock, flags); if (intf->curr_msg) { if (priority > 0) list_add_tail(&smi_msg->link, &intf->hp_xmit_msgs); @@ -1500,8 +1496,25 @@ static void smi_send(ipmi_smi_t intf, struct ipmi_smi_handlers *handlers, } else { intf->curr_msg = smi_msg; } - if (!run_to_completion) + + return smi_msg; +} + + +static void smi_send(ipmi_smi_t intf, struct ipmi_smi_handlers *handlers, + struct ipmi_smi_msg *smi_msg, int priority) +{ + int run_to_completion = intf->run_to_completion; + + if (run_to_completion) { + smi_msg = smi_add_send_msg(intf, smi_msg, priority); + } else { + unsigned long flags; + + spin_lock_irqsave(&intf->xmit_msgs_lock, flags); + smi_msg = smi_add_send_msg(intf, smi_msg, priority); spin_unlock_irqrestore(&intf->xmit_msgs_lock, flags); + } if (smi_msg) handlers->sender(intf->send_info, smi_msg); |