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From: Thiago Jung Bauermann <bauerman@linux.vnet.ibm.com>
To: Russell King - ARM Linux <linux@armlinux.org.uk>
Cc: Tony Lindgren <tony@atomide.com>,
	Mimi Zohar <zohar@linux.vnet.ibm.com>,
	linuxppc-dev@lists.ozlabs.org, kexec@lists.infradead.org,
	linux-kernel@vger.kernel.org,
	Eric Biederman <ebiederm@xmission.com>,
	linux-ima-devel@lists.sourceforge.net,
	Andrew Morton <akpm@linux-foundation.org>,
	linux-omap@vger.kernel.org, Dave Young <dyoung@redhat.com>,
	linux-arm-kernel@lists.infradead.org
Subject: Re: Kexec regression in next-20160906
Date: Thu, 08 Sep 2016 12:23:13 -0300	[thread overview]
Message-ID: <8729269.3rIvqbaU1r@hactar> (raw)
In-Reply-To: <20160907080807.GD5783@n2100.arm.linux.org.uk>

Am Mittwoch, 07 September 2016, 09:08:07 schrieb Russell King - ARM Linux:
> Any change to a UAPI header needs to be carefully considered and
> questioned as it is always a potential userspace breakage - and in
> the kernel, we're supposed to be doing our up-most to avoid
> breaking userspace.
> 
> It's not like it was in the old days when we didn't have the UAPI
> seperate - today, we can find these things by looking at the patch
> diffstat and seeing whether any file in "uapi" is touched.  That
> should be the trigger for a really in-depth review of the change.

No UAPI header is touched by this patch series. That is because there are 
two definitions of struct kexec_segment, one in include/linux/kexec.h and 
the other one in include/uapi/linux/kexec.h. My patch changed the former.
I was unaware of the second definition in the latter.

-- 
[]'s
Thiago Jung Bauermann
IBM Linux Technology Center


_______________________________________________
kexec mailing list
kexec@lists.infradead.org
http://lists.infradead.org/mailman/listinfo/kexec

WARNING: multiple messages have this Message-ID (diff)
From: Thiago Jung Bauermann <bauerman@linux.vnet.ibm.com>
To: Russell King - ARM Linux <linux@armlinux.org.uk>
Cc: Tony Lindgren <tony@atomide.com>,
	Andrew Morton <akpm@linux-foundation.org>,
	Eric Biederman <ebiederm@xmission.com>,
	linux-kernel@vger.kernel.org,
	linux-arm-kernel@lists.infradead.org, linux-omap@vger.kernel.org,
	Dave Young <dyoung@redhat.com>,
	Mimi Zohar <zohar@linux.vnet.ibm.com>,
	linux-ima-devel@lists.sourceforge.net,
	linuxppc-dev@lists.ozlabs.org, kexec@lists.infradead.org
Subject: Re: Kexec regression in next-20160906
Date: Thu, 08 Sep 2016 12:23:13 -0300	[thread overview]
Message-ID: <8729269.3rIvqbaU1r@hactar> (raw)
In-Reply-To: <20160907080807.GD5783@n2100.arm.linux.org.uk>

Am Mittwoch, 07 September 2016, 09:08:07 schrieb Russell King - ARM Linux:
> Any change to a UAPI header needs to be carefully considered and
> questioned as it is always a potential userspace breakage - and in
> the kernel, we're supposed to be doing our up-most to avoid
> breaking userspace.
> 
> It's not like it was in the old days when we didn't have the UAPI
> seperate - today, we can find these things by looking at the patch
> diffstat and seeing whether any file in "uapi" is touched.  That
> should be the trigger for a really in-depth review of the change.

No UAPI header is touched by this patch series. That is because there are 
two definitions of struct kexec_segment, one in include/linux/kexec.h and 
the other one in include/uapi/linux/kexec.h. My patch changed the former.
I was unaware of the second definition in the latter.

-- 
[]'s
Thiago Jung Bauermann
IBM Linux Technology Center

WARNING: multiple messages have this Message-ID (diff)
From: bauerman@linux.vnet.ibm.com (Thiago Jung Bauermann)
To: linux-arm-kernel@lists.infradead.org
Subject: Kexec regression in next-20160906
Date: Thu, 08 Sep 2016 12:23:13 -0300	[thread overview]
Message-ID: <8729269.3rIvqbaU1r@hactar> (raw)
In-Reply-To: <20160907080807.GD5783@n2100.arm.linux.org.uk>

Am Mittwoch, 07 September 2016, 09:08:07 schrieb Russell King - ARM Linux:
> Any change to a UAPI header needs to be carefully considered and
> questioned as it is always a potential userspace breakage - and in
> the kernel, we're supposed to be doing our up-most to avoid
> breaking userspace.
> 
> It's not like it was in the old days when we didn't have the UAPI
> seperate - today, we can find these things by looking at the patch
> diffstat and seeing whether any file in "uapi" is touched.  That
> should be the trigger for a really in-depth review of the change.

No UAPI header is touched by this patch series. That is because there are 
two definitions of struct kexec_segment, one in include/linux/kexec.h and 
the other one in include/uapi/linux/kexec.h. My patch changed the former.
I was unaware of the second definition in the latter.

-- 
[]'s
Thiago Jung Bauermann
IBM Linux Technology Center

  reply	other threads:[~2016-09-08 15:23 UTC|newest]

Thread overview: 9+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2016-09-06 22:09 Kexec regression in next-20160906 Tony Lindgren
2016-09-06 22:09 ` Tony Lindgren
2016-09-06 23:33 ` Thiago Jung Bauermann
2016-09-06 23:33   ` Thiago Jung Bauermann
2016-09-07  8:08   ` Russell King - ARM Linux
2016-09-07  8:08     ` Russell King - ARM Linux
2016-09-08 15:23     ` Thiago Jung Bauermann [this message]
2016-09-08 15:23       ` Thiago Jung Bauermann
2016-09-08 15:23       ` Thiago Jung Bauermann

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