From: Kevin Winchester on 3 Jul 2010 19:30 The warning is corrected by extracting the debug path out into its own function. This does en up duplicating one line of code between the debug and regular code paths (i.e. the actual call of the initcall function), but it seems worthwhile for the cleaner build. Signed-off-by: Kevin Winchester <kjwinchester(a)gmail.com> --- init/main.c | 49 ++++++++++++++++++++++++++++--------------------- 1 files changed, 28 insertions(+), 21 deletions(-) diff --git a/init/main.c b/init/main.c index a42fdf4..21def42 100644 --- a/init/main.c +++ b/init/main.c @@ -728,30 +728,38 @@ static char msgbuf[64]; static struct boot_trace_call call; static struct boot_trace_ret ret; +static inline int do_one_initcall_debug(initcall_t fn) +{ + ktime_t calltime, rettime, delta; + int result; + + call.caller = task_pid_nr(current); + printk(KERN_DEBUG "calling %pF @ %i\n", fn, call.caller); + calltime = ktime_get(); + trace_boot_call(&call, fn); + enable_boot_trace(); + + result = fn(); + + disable_boot_trace(); + rettime = ktime_get(); + delta = ktime_sub(rettime, calltime); + ret.duration = (unsigned long long) ktime_to_ns(delta) >> 10; + trace_boot_ret(&ret, fn); + printk(KERN_DEBUG "initcall %pF returned %d after %lld usecs\n", fn, + ret.result, ret.duration); + + return result; +} + int do_one_initcall(initcall_t fn) { int count = preempt_count(); - ktime_t calltime, delta, rettime; - - if (initcall_debug) { - call.caller = task_pid_nr(current); - printk("calling %pF @ %i\n", fn, call.caller); - calltime = ktime_get(); - trace_boot_call(&call, fn); - enable_boot_trace(); - } - ret.result = fn(); - - if (initcall_debug) { - disable_boot_trace(); - rettime = ktime_get(); - delta = ktime_sub(rettime, calltime); - ret.duration = (unsigned long long) ktime_to_ns(delta) >> 10; - trace_boot_ret(&ret, fn); - printk("initcall %pF returned %d after %Ld usecs\n", fn, - ret.result, ret.duration); - } + if (initcall_debug) + ret.result = do_one_initcall_debug(fn); + else + ret.result = fn(); msgbuf[0] = 0; @@ -773,7 +781,6 @@ int do_one_initcall(initcall_t fn) return ret.result; } - extern initcall_t __initcall_start[], __initcall_end[], __early_initcall_end[]; static void __init do_initcalls(void) -- 1.7.1 -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo(a)vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
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