stable backport for dc8635b78cd8669

stable backport for dc8635b78cd8669

[Vineet Gupta]

Hi Stable team,

Can we please backport dc8635b78cd8669c37e230058d18c33af7451ab1 ("kernel/exit.c:
export abort() to modules")

0-Day kernel test infra reports ARC 4.x.y builds failing after backport of
af1be2e21203867cb958aace ("ARC: handle gcc generated __builtin_trap for older
compiler")

Thx
-Vineet

Re: stable backport for dc8635b78cd8669

[Greg Kroah-Hartman]

On Wed, Sep 18, 2019 at 10:40:32AM -0700, Vineet Gupta wrote:
> Hi Stable team,
> 
> Can we please backport dc8635b78cd8669c37e230058d18c33af7451ab1 ("kernel/exit.c:
> export abort() to modules")
> 
> 0-Day kernel test infra reports ARC 4.x.y builds failing after backport of
> af1be2e21203867cb958aace ("ARC: handle gcc generated __builtin_trap for older
> compiler")

So is this only needed in 4.9.y and 4.4.y?

thanks,

greg k-h

Re: stable backport for dc8635b78cd8669

[Vineet Gupta]

On 9/18/19 11:56 AM, Greg Kroah-Hartman wrote:
> So is this only needed in 4.9.y and 4.4.y?

Yes indeed !

Thx,
-Vineet

Re: stable backport for dc8635b78cd8669

[Greg Kroah-Hartman]

On Wed, Sep 18, 2019 at 01:10:04PM -0700, Vineet Gupta wrote:
> On 9/18/19 11:56 AM, Greg Kroah-Hartman wrote:
> > So is this only needed in 4.9.y and 4.4.y?
> 
> Yes indeed !

It doesn't apply there at all, can you provide a working backport for
those kernels so that I can queue it up?

thanks,

greg k-h

[PATCH] ARC: export "abort" for modules

[Vineet Gupta]

This is a custom patch (no mainline equivalent) for stable backport only
to address 0-Day kernel test infra ARC 4.x.y builds errors.

The reason for this custom patch as that it is a single patch, touches
only ARC, vs. atleast two 7c2c11b208be09c1, dc8635b78cd8669 which touch
atleast 3 other arches (one long removed) and could potentially have a
fallout.

Reported-by: kbuild test robot <lkp@intel.com>
CC: stable@vger.kernel.org	# 4.4, 4.9
Signed-off-by: Vineet Gupta <vgupta@synopsys.com>
---
 arch/arc/kernel/traps.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/arch/arc/kernel/traps.c b/arch/arc/kernel/traps.c
index 2fb0cd39a31c..cd6e3615e3d1 100644
--- a/arch/arc/kernel/traps.c
+++ b/arch/arc/kernel/traps.c
@@ -163,3 +163,4 @@ void abort(void)
 {
 	__asm__ __volatile__("trap_s  5\n");
 }
+EXPORT_SYMBOL(abort);
-- 
2.20.1