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[4.4,09/46] gcov: Disable gcov build with GCC 10

Message ID	20200921162033.802338275@linuxfoundation.org
State	Superseded
Headers	show Return-Path: <SRS0=lyed=C6=vger.kernel.org=stable-owner@kernel.org> From: Greg Kroah-Hartman <gregkh@linuxfoundation.org> To: linux-kernel@vger.kernel.org Cc: Greg Kroah-Hartman <gregkh@linuxfoundation.org>, stable@vger.kernel.org, Colin Ian King <colin.king@canonical.com>, Leon Romanovsky <leonro@nvidia.com>, Linus Torvalds <torvalds@linux-foundation.org>, Sasha Levin <sashal@kernel.org> Subject: [PATCH 4.4 09/46] gcov: Disable gcov build with GCC 10 Date: Mon, 21 Sep 2020 18:27:25 +0200 Message-Id: <20200921162033.802338275@linuxfoundation.org> In-Reply-To: <20200921162033.346434578@linuxfoundation.org> References: <20200921162033.346434578@linuxfoundation.org> User-Agent: quilt/0.66 MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit Precedence: bulk
Series	None \| expand [4.4,02/46] scsi: libsas: Set data_dir as DMA_NONE if libata marks qc as NODATA [4.4,03/46] drivers/net/wan/lapbether: Added needed_tailroom [4.4,04/46] firestream: Fix memleak in fs_open [4.4,05/46] drivers/net/wan/lapbether: Set network_header before transmitting [4.4,06/46] xfs: initialize the shortform attr header padding entry [4.4,07/46] drivers/net/wan/hdlc_cisco: Add hard_header_len [4.4,08/46] ALSA: hda: fix a runtime pm issue in SOF when integrated GPU is disabled [4.4,09/46] gcov: Disable gcov build with GCC 10 [4.4,10/46] iio: adc: mcp3422: fix locking scope [4.4,11/46] iio: adc: mcp3422: fix locking on error path [4.4,12/46] iio:light:ltr501 Fix timestamp alignment issue. [4.4,13/46] iio:accel:bmc150-accel: Fix timestamp alignment and prevent data leak. [4.4,14/46] iio:accel:mma8452: Fix timestamp alignment and prevent data leak. [4.4,15/46] USB: core: add helpers to retrieve endpoints [4.4,16/46] staging: wlan-ng: fix out of bounds read in prism2sta_probe_usb() [4.4,17/46] btrfs: fix wrong address when faulting in pages in the search ioctl [4.4,18/46] scsi: target: iscsi: Fix hang in iscsit_access_np() when getting tpg->np_login_sem [4.4,19/46] rbd: require global CAP_SYS_ADMIN for mapping and unmapping [4.4,20/46] fbcon: remove soft scrollback code [4.4,21/46] fbcon: remove now unusued softback_lines cursor() argument [4.4,22/46] vgacon: remove software scrollback support [4.4,23/46] KVM: VMX: Dont freeze guest when event delivery causes an APIC-access exit [4.4,24/46] video: fbdev: fix OOB read in vga_8planes_imageblit() [4.4,25/46] USB: serial: ftdi_sio: add IDs for Xsens Mti USB converter [4.4,26/46] USB: serial: option: add support for SIM7070/SIM7080/SIM7090 modules [4.4,27/46] usb: Fix out of sync data toggle if a configured device is reconfigured [4.4,28/46] gcov: add support for GCC 10.1 [4.4,29/46] NFSv4.1 handle ERR_DELAY error reclaiming locking state on delegation recall [4.4,30/46] scsi: pm8001: Fix memleak in pm8001_exec_internal_task_abort [4.4,31/46] scsi: lpfc: Fix FLOGI/PLOGI receive race condition in pt2pt discovery [4.4,32/46] SUNRPC: stop printk reading past end of string [4.4,33/46] rapidio: Replace select DMAENGINES with depends on [4.4,34/46] i2c: algo: pca: Reapply i2c bus settings after reset [4.4,35/46] MIPS: SNI: Fix MIPS_L1_CACHE_SHIFT [4.4,36/46] perf test: Free formats for perf pmu parse test [4.4,37/46] fbcon: Fix user font detection test at fbcon_resize(). [4.4,38/46] MIPS: SNI: Fix spurious interrupts [4.4,39/46] USB: quirks: Add USB_QUIRK_IGNORE_REMOTE_WAKEUP quirk for BYD zhaoxin notebook [4.4,40/46] USB: UAS: fix disconnect by unplugging a hub [4.4,41/46] usblp: fix race between disconnect() and read() [4.4,42/46] Input: i8042 - add Entroware Proteus EL07R4 to nomux and reset lists [4.4,43/46] serial: 8250_pci: Add Realtek 816a and 816b [4.4,44/46] ehci-hcd: Move include to keep CRC stable [4.4,45/46] powerpc/dma: Fix dma_map_ops::get_required_mask [4.4,46/46] x86/defconfig: Enable CONFIG_USB_XHCI_HCD=y

Commit Message

gregkh@linuxfoundation.org Sept. 21, 2020, 4:27 p.m. UTC

From: Leon Romanovsky <leonro@nvidia.com>

[ Upstream commit cfc905f158eaa099d6258031614d11869e7ef71c ]

GCOV built with GCC 10 doesn't initialize n_function variable.  This
produces different kernel panics as was seen by Colin in Ubuntu and me
in FC 32.

As a workaround, let's disable GCOV build for broken GCC 10 version.

Link: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1891288
Link: https://lore.kernel.org/lkml/20200827133932.3338519-1-leon@kernel.org
Link: https://lore.kernel.org/lkml/CAHk-=whbijeSdSvx-Xcr0DPMj0BiwhJ+uiNnDSVZcr_h_kg7UA@mail.gmail.com/
Cc: Colin Ian King <colin.king@canonical.com>
Signed-off-by: Leon Romanovsky <leonro@nvidia.com>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 kernel/gcov/Kconfig | 1 +
 1 file changed, 1 insertion(+)

diff mbox series

Patch

diff --git a/kernel/gcov/Kconfig b/kernel/gcov/Kconfig
index 1276aabaab550..1d78ed19a3512 100644
--- a/kernel/gcov/Kconfig
+++ b/kernel/gcov/Kconfig
@@ -3,6 +3,7 @@  menu "GCOV-based kernel profiling"
 config GCOV_KERNEL
 	bool "Enable gcov-based kernel profiling"
 	depends on DEBUG_FS
+	depends on !CC_IS_GCC || GCC_VERSION < 100000
 	select CONSTRUCTORS if !UML
 	default n
 	---help---