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From: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
To: linux-kernel@vger.kernel.org
Cc: Greg Kroah-Hartman <gregkh@linuxfoundation.org>,
	stable@vger.kernel.org, Helge Deller <deller@gmx.de>
Subject: [PATCH 4.9 09/53] parisc: Skip registering LED when running in QEMU
Date: Thu, 23 May 2019 21:05:33 +0200	[thread overview]
Message-ID: <20190523181712.376411617@linuxfoundation.org> (raw)
In-Reply-To: <20190523181710.981455400@linuxfoundation.org>

From: Helge Deller <deller@gmx.de>

commit b438749044356dd1329c45e9b5a9377b6ea13eb2 upstream.

No need to spend CPU cycles when we run on QEMU.

Signed-off-by: Helge Deller <deller@gmx.de>
CC: stable@vger.kernel.org # v4.9+
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

---
 drivers/parisc/led.c |    3 +++
 1 file changed, 3 insertions(+)

--- a/drivers/parisc/led.c
+++ b/drivers/parisc/led.c
@@ -568,6 +568,9 @@ int __init register_led_driver(int model
 		break;
 
 	case DISPLAY_MODEL_LASI:
+		/* Skip to register LED in QEMU */
+		if (running_on_qemu)
+			return 1;
 		LED_DATA_REG = data_reg;
 		led_func_ptr = led_LASI_driver;
 		printk(KERN_INFO "LED display at %lx registered\n", LED_DATA_REG);



  parent reply	other threads:[~2019-05-23 19:09 UTC|newest]

Thread overview: 58+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2019-05-23 19:05 [PATCH 4.9 00/53] 4.9.179-stable review Greg Kroah-Hartman
2019-05-23 19:05 ` [PATCH 4.9 01/53] net: avoid weird emergency message Greg Kroah-Hartman
2019-05-23 19:05 ` [PATCH 4.9 02/53] net/mlx4_core: Change the error print to info print Greg Kroah-Hartman
2019-05-23 19:05 ` [PATCH 4.9 03/53] ppp: deflate: Fix possible crash in deflate_init Greg Kroah-Hartman
2019-05-23 19:05 ` [PATCH 4.9 04/53] tipc: switch order of device registration to fix a crash Greg Kroah-Hartman
2019-05-23 19:05 ` [PATCH 4.9 05/53] vsock/virtio: free packets during the socket release Greg Kroah-Hartman
2019-05-23 19:05 ` [PATCH 4.9 06/53] tipc: fix modprobe tipc failed after switch order of device registration Greg Kroah-Hartman
2019-05-23 19:05 ` [PATCH 4.9 07/53] vsock/virtio: Initialize core virtio vsock before registering the driver Greg Kroah-Hartman
2019-05-23 19:05 ` [PATCH 4.9 08/53] parisc: Export running_on_qemu symbol for modules Greg Kroah-Hartman
2019-05-23 19:05 ` Greg Kroah-Hartman [this message]
2019-05-23 19:05 ` [PATCH 4.9 10/53] parisc: Rename LEVEL to PA_ASM_LEVEL to avoid name clash with DRBD code Greg Kroah-Hartman
2019-05-23 19:05 ` [PATCH 4.9 11/53] stm class: Fix channel free in stm output free path Greg Kroah-Hartman
2019-05-23 19:05 ` [PATCH 4.9 12/53] md: add mddev->pers to avoid potential NULL pointer dereference Greg Kroah-Hartman
2019-05-23 19:05 ` [PATCH 4.9 13/53] intel_th: msu: Fix single mode with IOMMU Greg Kroah-Hartman
2019-05-23 19:05 ` [PATCH 4.9 14/53] p54: drop device reference count if fails to enable device Greg Kroah-Hartman
2019-05-23 19:05 ` [PATCH 4.9 15/53] of: fix clang -Wunsequenced for be32_to_cpu() Greg Kroah-Hartman
2019-05-23 19:05 ` [PATCH 4.9 16/53] cifs: fix strcat buffer overflow and reduce raciness in smb21_set_oplock_level() Greg Kroah-Hartman
2019-05-23 19:05 ` [PATCH 4.9 17/53] media: ov6650: Fix sensor possibly not detected on probe Greg Kroah-Hartman
2019-05-23 19:05 ` [PATCH 4.9 18/53] NFS4: Fix v4.0 client state corruption when mount Greg Kroah-Hartman
2019-05-23 19:05 ` [PATCH 4.9 19/53] clk: tegra: Fix PLLM programming on Tegra124+ when PMC overrides divider Greg Kroah-Hartman
2019-05-23 19:05 ` [PATCH 4.9 20/53] fuse: fix writepages on 32bit Greg Kroah-Hartman
2019-05-23 19:05 ` [PATCH 4.9 21/53] fuse: honor RLIMIT_FSIZE in fuse_file_fallocate Greg Kroah-Hartman
2019-05-23 19:05 ` [PATCH 4.9 22/53] iommu/tegra-smmu: Fix invalid ASID bits on Tegra30/114 Greg Kroah-Hartman
2019-05-23 19:05 ` [PATCH 4.9 23/53] ceph: flush dirty inodes before proceeding with remount Greg Kroah-Hartman
2019-05-23 19:05 ` [PATCH 4.9 24/53] tracing: Fix partial reading of trace events id file Greg Kroah-Hartman
2019-05-23 19:05 ` [PATCH 4.9 25/53] memory: tegra: Fix integer overflow on tick value calculation Greg Kroah-Hartman
2019-05-23 19:05 ` [PATCH 4.9 26/53] perf intel-pt: Fix instructions sampling rate Greg Kroah-Hartman
2019-05-23 19:05 ` [PATCH 4.9 27/53] perf intel-pt: Fix improved sample timestamp Greg Kroah-Hartman
2019-05-23 19:05 ` [PATCH 4.9 28/53] perf intel-pt: Fix sample timestamp wrt non-taken branches Greg Kroah-Hartman
2019-05-23 19:05 ` [PATCH 4.9 29/53] objtool: Allow AR to be overridden with HOSTAR Greg Kroah-Hartman
2019-05-23 19:05 ` [PATCH 4.9 30/53] fbdev: sm712fb: fix brightness control on reboot, dont set SR30 Greg Kroah-Hartman
2019-05-23 19:05 ` [PATCH 4.9 31/53] fbdev: sm712fb: fix VRAM detection, dont set SR70/71/74/75 Greg Kroah-Hartman
2019-05-23 19:05 ` [PATCH 4.9 32/53] fbdev: sm712fb: fix white screen of death on reboot, dont set CR3B-CR3F Greg Kroah-Hartman
2019-05-23 19:05 ` [PATCH 4.9 33/53] fbdev: sm712fb: fix boot screen glitch when sm712fb replaces VGA Greg Kroah-Hartman
2019-05-23 19:05 ` [PATCH 4.9 34/53] fbdev: sm712fb: fix crashes during framebuffer writes by correctly mapping VRAM Greg Kroah-Hartman
2019-05-23 19:05 ` [PATCH 4.9 35/53] fbdev: sm712fb: fix support for 1024x768-16 mode Greg Kroah-Hartman
2019-05-23 19:06 ` [PATCH 4.9 36/53] fbdev: sm712fb: use 1024x768 by default on non-MIPS, fix garbled display Greg Kroah-Hartman
2019-05-23 19:06 ` [PATCH 4.9 37/53] fbdev: sm712fb: fix crashes and garbled display during DPMS modesetting Greg Kroah-Hartman
2019-05-23 19:06 ` [PATCH 4.9 38/53] PCI: Mark Atheros AR9462 to avoid bus reset Greg Kroah-Hartman
2019-05-23 19:06 ` [PATCH 4.9 39/53] PCI: Factor out pcie_retrain_link() function Greg Kroah-Hartman
2019-05-23 19:06 ` [PATCH 4.9 40/53] PCI: Work around Pericom PCIe-to-PCI bridge Retrain Link erratum Greg Kroah-Hartman
2019-05-23 19:06 ` [PATCH 4.9 41/53] dm delay: fix a crash when invalid device is specified Greg Kroah-Hartman
2019-05-23 19:06 ` [PATCH 4.9 42/53] xfrm: policy: Fix out-of-bound array accesses in __xfrm_policy_unlink Greg Kroah-Hartman
2019-05-23 19:06 ` [PATCH 4.9 43/53] xfrm6_tunnel: Fix potential panic when unloading xfrm6_tunnel module Greg Kroah-Hartman
2019-05-23 19:06 ` [PATCH 4.9 44/53] vti4: ipip tunnel deregistration fixes Greg Kroah-Hartman
2019-05-23 19:06 ` [PATCH 4.9 45/53] xfrm4: Fix uninitialized memory read in _decode_session4 Greg Kroah-Hartman
2019-05-23 19:06 ` [PATCH 4.9 46/53] mac80211: Fix kernel panic due to use of txq after free Greg Kroah-Hartman
2019-05-23 19:06 ` [PATCH 4.9 47/53] KVM: arm/arm64: Ensure vcpu target is unset on reset failure Greg Kroah-Hartman
2019-05-23 19:06 ` [PATCH 4.9 48/53] power: supply: sysfs: prevent endless uevent loop with CONFIG_POWER_SUPPLY_DEBUG Greg Kroah-Hartman
2019-05-23 19:06 ` [PATCH 4.9 49/53] ufs: fix braino in ufs_get_inode_gid() for solaris UFS flavour Greg Kroah-Hartman
2019-05-23 19:06 ` [PATCH 4.9 50/53] perf bench numa: Add define for RUSAGE_THREAD if not present Greg Kroah-Hartman
2019-05-23 19:06 ` [PATCH 4.9 51/53] Revert "Dont jump to compute_result state from check_result state" Greg Kroah-Hartman
2019-05-23 19:06 ` [PATCH 4.9 52/53] md/raid: raid5 preserve the writeback action after the parity check Greg Kroah-Hartman
2019-05-23 19:06 ` [PATCH 4.9 53/53] btrfs: Honour FITRIM range constraints during free space trim Greg Kroah-Hartman
2019-05-24  5:28 ` [PATCH 4.9 00/53] 4.9.179-stable review kernelci.org bot
2019-05-24  8:43 ` Naresh Kamboju
2019-05-24 11:04 ` Jon Hunter
2019-05-24 18:56 ` shuah

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