diff options
Diffstat (limited to 'target/linux/avr32/patches-3.10/100-avr32-balance-cpu_idle_poll_ctrl-calls.patch')
| -rw-r--r-- | target/linux/avr32/patches-3.10/100-avr32-balance-cpu_idle_poll_ctrl-calls.patch | 68 |
1 files changed, 0 insertions, 68 deletions
diff --git a/target/linux/avr32/patches-3.10/100-avr32-balance-cpu_idle_poll_ctrl-calls.patch b/target/linux/avr32/patches-3.10/100-avr32-balance-cpu_idle_poll_ctrl-calls.patch deleted file mode 100644 index 15918d623f..0000000000 --- a/target/linux/avr32/patches-3.10/100-avr32-balance-cpu_idle_poll_ctrl-calls.patch +++ /dev/null @@ -1,68 +0,0 @@ -From 1b2bdd19742d4a336a4865d9b352c7a0ca7028ee Mon Sep 17 00:00:00 2001 -From: Gabor Juhos <juhosg@openwrt.org> -Date: Wed, 25 Sep 2013 10:00:10 +0200 -Subject: [PATCH] avr32: balance cpu_idle_poll_ctrl calls - -Since commit 01426478df3a8791ff5c8b6b82d409e699cfaf38 -(avr32: Use generic idle loop) the kernel throws the -following warning on avr32: - - WARNING: at 900322e4 [verbose debug info unavailable] - Modules linked in: - CPU: 0 PID: 0 Comm: swapper Not tainted 3.12.0-rc2 #117 - task: 901c3ecc ti: 901c0000 task.ti: 901c0000 - PC is at cpu_idle_poll_ctrl+0x1c/0x38 - LR is at comparator_mode+0x3e/0x40 - pc : [<900322e4>] lr : [<90014882>] Not tainted - sp : 901c1f74 r12: 00000000 r11: 901c74a0 - r10: 901d2510 r9 : 00000001 r8 : 901db4de - r7 : 901c74a0 r6 : 00000001 r5 : 00410020 r4 : 901db574 - r3 : 00410024 r2 : 90206fe0 r1 : 00000000 r0 : 007f0000 - Flags: qvnzc - Mode bits: hjmde....G - CPU Mode: Supervisor - Call trace: - [<90039ede>] clockevents_set_mode+0x16/0x2e - [<90039f00>] clockevents_shutdown+0xa/0x1e - [<9003a078>] clockevents_exchange_device+0x58/0x70 - [<9003a78c>] tick_check_new_device+0x38/0x54 - [<9003a1a2>] clockevents_register_device+0x32/0x90 - [<900035c4>] time_init+0xa8/0x108 - [<90000520>] start_kernel+0x128/0x23c - -When the 'avr32_comparator' clockevent device is registered, -the clockevent core sets the mode of that clockevent device -to CLOCK_EVT_MODE_SHUTDOWN. Due to this, the 'comparator_mode' -function calls the 'cpu_idle_poll_ctrl' to disables idle poll. -This results in the aforementioned warning because the polling -is not enabled yet. - -Change the code to only disable idle poll if it is enabled by -the same function to avoid the warning. - -Cc: stable@vger.kernel.org -Signed-off-by: Gabor Juhos <juhosg@openwrt.org> ---- -Note: the patch is against v3.12-rc2. ---- - arch/avr32/kernel/time.c | 9 ++++++++- - 1 file changed, 8 insertions(+), 1 deletion(-) - ---- a/arch/avr32/kernel/time.c -+++ b/arch/avr32/kernel/time.c -@@ -98,7 +98,14 @@ static void comparator_mode(enum clock_e - case CLOCK_EVT_MODE_SHUTDOWN: - sysreg_write(COMPARE, 0); - pr_debug("%s: stop\n", evdev->name); -- cpu_idle_poll_ctrl(false); -+ if (evdev->mode == CLOCK_EVT_MODE_ONESHOT || -+ evdev->mode == CLOCK_EVT_MODE_RESUME) { -+ /* -+ * Only disable idle poll if we have forced that -+ * in a previous call. -+ */ -+ cpu_idle_poll_ctrl(false); -+ } - break; - default: - BUG(); |