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Date: Sun, 19 Aug 2012 19:33:02 +0200 From: Bruno Prémont <bonbons@...ux-vserver.org> To: Jiri Kosina <jkosina@...e.cz> Cc: linux-input@...r.kernel.org, linux-kernel@...r.kernel.org Subject: [PATCH 4/6] HID: picoLCD: optimize for inactive debugfs Matthieu CASTET adjusted picolcd_debug_out_report() to only operate when there is an active listener on debugfs for events. Do the same on the more important picolcd_debug_raw_event() that is called in interrupt context as opposed to picolcd_debug_out_report() which happens in whichever context that sends reports to device. Signed-off-by: Bruno Prémont <bonbons@...ux-vserver.org> --- drivers/hid/hid-picolcd_debugfs.c | 2 +- 1 files changed, 1 insertions(+), 1 deletions(-) diff --git a/drivers/hid/hid-picolcd_debugfs.c b/drivers/hid/hid-picolcd_debugfs.c index f18a4c2..dbefab7 100644 --- a/drivers/hid/hid-picolcd_debugfs.c +++ b/drivers/hid/hid-picolcd_debugfs.c @@ -656,7 +656,7 @@ void picolcd_debug_raw_event(struct picolcd_data *data, #define BUFF_SZ 256 /* Avoid unnecessary overhead if debugfs is disabled */ - if (!hdev->debug_events) + if (list_empty(&hdev->debug_list)) return; buff = kmalloc(BUFF_SZ, GFP_ATOMIC); -- 1.7.8.6 -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@...r.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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