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* [PATCH] include/uapi/linux/xfrm.h: Fix XFRM_MSG_MAPPING ABI breakage
@ 2021-09-01 15:34 Eugene Syromiatnikov
  2021-09-02  7:22 ` Nicolas Dichtel
  2021-09-02 18:28 ` Dmitry V. Levin
  0 siblings, 2 replies; 3+ messages in thread
From: Eugene Syromiatnikov @ 2021-09-01 15:34 UTC (permalink / raw)
  To: Steffen Klassert, Herbert Xu, David S. Miller, Antony Antony,
	Christian Langrock
  Cc: netdev, linux-kernel, Dmitry V. Levin, linux-api

Commit 2d151d39073a ("xfrm: Add possibility to set the default to block
if we have no policy") broke ABI by changing the value of the XFRM_MSG_MAPPING
enum item.  Fix it by placing XFRM_MSG_SETDEFAULT/XFRM_MSG_GETDEFAULT
to the end of the enum, right before __XFRM_MSG_MAX.

Fixes: 2d151d39073a ("xfrm: Add possibility to set the default to block if we have no policy")
Signed-off-by: Eugene Syromiatnikov <esyr@redhat.com>
---
 include/uapi/linux/xfrm.h | 6 +++---
 1 file changed, 3 insertions(+), 3 deletions(-)

diff --git a/include/uapi/linux/xfrm.h b/include/uapi/linux/xfrm.h
index b96c1ea..26f456b1 100644
--- a/include/uapi/linux/xfrm.h
+++ b/include/uapi/linux/xfrm.h
@@ -213,13 +213,13 @@ enum {
 	XFRM_MSG_GETSPDINFO,
 #define XFRM_MSG_GETSPDINFO XFRM_MSG_GETSPDINFO
 
+	XFRM_MSG_MAPPING,
+#define XFRM_MSG_MAPPING XFRM_MSG_MAPPING
+
 	XFRM_MSG_SETDEFAULT,
 #define XFRM_MSG_SETDEFAULT XFRM_MSG_SETDEFAULT
 	XFRM_MSG_GETDEFAULT,
 #define XFRM_MSG_GETDEFAULT XFRM_MSG_GETDEFAULT
-
-	XFRM_MSG_MAPPING,
-#define XFRM_MSG_MAPPING XFRM_MSG_MAPPING
 	__XFRM_MSG_MAX
 };
 #define XFRM_MSG_MAX (__XFRM_MSG_MAX - 1)
-- 
2.1.4


^ permalink raw reply related	[flat|nested] 3+ messages in thread

* Re: [PATCH] include/uapi/linux/xfrm.h: Fix XFRM_MSG_MAPPING ABI breakage
  2021-09-01 15:34 [PATCH] include/uapi/linux/xfrm.h: Fix XFRM_MSG_MAPPING ABI breakage Eugene Syromiatnikov
@ 2021-09-02  7:22 ` Nicolas Dichtel
  2021-09-02 18:28 ` Dmitry V. Levin
  1 sibling, 0 replies; 3+ messages in thread
From: Nicolas Dichtel @ 2021-09-02  7:22 UTC (permalink / raw)
  To: Eugene Syromiatnikov, Steffen Klassert, Herbert Xu,
	David S. Miller, Antony Antony, Christian Langrock
  Cc: netdev, linux-kernel, Dmitry V. Levin, linux-api

Le 01/09/2021 à 17:34, Eugene Syromiatnikov a écrit :
> Commit 2d151d39073a ("xfrm: Add possibility to set the default to block
> if we have no policy") broke ABI by changing the value of the XFRM_MSG_MAPPING
> enum item.  Fix it by placing XFRM_MSG_SETDEFAULT/XFRM_MSG_GETDEFAULT
> to the end of the enum, right before __XFRM_MSG_MAX.
> 
> Fixes: 2d151d39073a ("xfrm: Add possibility to set the default to block if we have no policy")
> Signed-off-by: Eugene Syromiatnikov <esyr@redhat.com>

Acked-by: Nicolas Dichtel <nicolas.dichtel@6wind.com>

^ permalink raw reply	[flat|nested] 3+ messages in thread

* Re: [PATCH] include/uapi/linux/xfrm.h: Fix XFRM_MSG_MAPPING ABI breakage
  2021-09-01 15:34 [PATCH] include/uapi/linux/xfrm.h: Fix XFRM_MSG_MAPPING ABI breakage Eugene Syromiatnikov
  2021-09-02  7:22 ` Nicolas Dichtel
@ 2021-09-02 18:28 ` Dmitry V. Levin
  1 sibling, 0 replies; 3+ messages in thread
From: Dmitry V. Levin @ 2021-09-02 18:28 UTC (permalink / raw)
  To: Eugene Syromiatnikov, Steffen Klassert
  Cc: Herbert Xu, David S. Miller, Antony Antony, Christian Langrock,
	netdev, linux-kernel, linux-api

On Wed, Sep 01, 2021 at 05:34:07PM +0200, Eugene Syromiatnikov wrote:
> Commit 2d151d39073a ("xfrm: Add possibility to set the default to block
> if we have no policy") broke ABI by changing the value of the XFRM_MSG_MAPPING
> enum item.  Fix it by placing XFRM_MSG_SETDEFAULT/XFRM_MSG_GETDEFAULT
> to the end of the enum, right before __XFRM_MSG_MAX.
> 
> Fixes: 2d151d39073a ("xfrm: Add possibility to set the default to block if we have no policy")
> Signed-off-by: Eugene Syromiatnikov <esyr@redhat.com>

References: https://lore.kernel.org/netdev/20210901151402.GA2557@altlinux.org/
Reviewed-by: Dmitry V. Levin <ldv@altlinux.org>


-- 
ldv

^ permalink raw reply	[flat|nested] 3+ messages in thread

end of thread, other threads:[~2021-09-02 18:28 UTC | newest]

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2021-09-01 15:34 [PATCH] include/uapi/linux/xfrm.h: Fix XFRM_MSG_MAPPING ABI breakage Eugene Syromiatnikov
2021-09-02  7:22 ` Nicolas Dichtel
2021-09-02 18:28 ` Dmitry V. Levin

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