[dpdk-stable] patch 'eal: fix build with -O1' has been queued to stable release 18.08.1

[Kevin Traynor]

Hi,

FYI, your patch has been queued to stable release 18.08.1

Note it hasn't been pushed to http://dpdk.org/browse/dpdk-stable yet.
It will be pushed if I get no objections before 12/08/18. So please
shout if anyone has objections.

Also note that after the patch there's a diff of the upstream commit vs the patch applied
to the branch. If the code is different (ie: not only metadata diffs), due for example to
a change in context or macro names, please double check it.

Thanks.

Kevin Traynor

---
>From 048dfa09bb606e52fe3d9cacf4608390d3377dd3 Mon Sep 17 00:00:00 2001
From: Thomas Monjalon <thomas at monjalon.net>
Date: Fri, 16 Nov 2018 17:58:50 +0100
Subject: [PATCH] eal: fix build with -O1

[ upstream commit e357e8ebd99c9c394a276fdffd37f13005cb1c63 ]

In case of optimized compilation, RTE_BUILD_BUG_ON use an external
variable which is neither defined, nor used.
It seems not optimized out in case of OPDL compiled with clang -O1:
	opdl_ring.c: undefined reference to `RTE_BUILD_BUG_ON_detected_error'
	clang-6.0: fatal error: linker command failed with exit code 1

Fixes: af75078fece3 ("first public release")

Signed-off-by: Thomas Monjalon <thomas at monjalon.net>
---
 lib/librte_eal/common/include/rte_common.h | 9 ---------
 1 file changed, 9 deletions(-)

diff --git a/lib/librte_eal/common/include/rte_common.h b/lib/librte_eal/common/include/rte_common.h
index 069c13ec7..e873415aa 100644
--- a/lib/librte_eal/common/include/rte_common.h
+++ b/lib/librte_eal/common/include/rte_common.h
@@ -260,14 +260,5 @@ rte_is_aligned(void *ptr, unsigned align)
  * Triggers an error at compilation time if the condition is true.
  */
-#ifndef __OPTIMIZE__
 #define RTE_BUILD_BUG_ON(condition) ((void)sizeof(char[1 - 2*!!(condition)]))
-#else
-extern int RTE_BUILD_BUG_ON_detected_error;
-#define RTE_BUILD_BUG_ON(condition) do {             \
-	((void)sizeof(char[1 - 2*!!(condition)]));   \
-	if (condition)                               \
-		RTE_BUILD_BUG_ON_detected_error = 1; \
-} while(0)
-#endif
 
 /**
-- 
2.19.0

---
  Diff of the applied patch vs upstream commit (please double-check if non-empty:
---
--- -	2018-11-29 13:11:36.781645840 +0000
+++ 0069-eal-fix-build-with-O1.patch	2018-11-29 13:11:34.000000000 +0000
@@ -1,8 +1,10 @@
-From e357e8ebd99c9c394a276fdffd37f13005cb1c63 Mon Sep 17 00:00:00 2001
+From 048dfa09bb606e52fe3d9cacf4608390d3377dd3 Mon Sep 17 00:00:00 2001
 From: Thomas Monjalon <thomas at monjalon.net>
 Date: Fri, 16 Nov 2018 17:58:50 +0100
 Subject: [PATCH] eal: fix build with -O1
 
+[ upstream commit e357e8ebd99c9c394a276fdffd37f13005cb1c63 ]
+
 In case of optimized compilation, RTE_BUILD_BUG_ON use an external
 variable which is neither defined, nor used.
 It seems not optimized out in case of OPDL compiled with clang -O1:
@@ -10,7 +12,6 @@
 	clang-6.0: fatal error: linker command failed with exit code 1
 
 Fixes: af75078fece3 ("first public release")
-Cc: stable at dpdk.org
 
 Signed-off-by: Thomas Monjalon <thomas at monjalon.net>
 ---
@@ -18,10 +19,10 @@
  1 file changed, 9 deletions(-)
 
 diff --git a/lib/librte_eal/common/include/rte_common.h b/lib/librte_eal/common/include/rte_common.h
-index d115b175c..66cdf60b2 100644
+index 069c13ec7..e873415aa 100644
 --- a/lib/librte_eal/common/include/rte_common.h
 +++ b/lib/librte_eal/common/include/rte_common.h
-@@ -271,14 +271,5 @@ rte_is_aligned(void *ptr, unsigned align)
+@@ -260,14 +260,5 @@ rte_is_aligned(void *ptr, unsigned align)
   * Triggers an error at compilation time if the condition is true.
   */
 -#ifndef __OPTIMIZE__