From: Ruifeng Wang <Ruifeng.Wang@arm.com>
To: Daniel Gregory <daniel.gregory@bytedance.com>,
Wathsala Wathawana Vithanage <wathsala.vithanage@arm.com>,
Honnappa Nagarahalli <Honnappa.Nagarahalli@arm.com>
Cc: "dev@dpdk.org" <dev@dpdk.org>,
Punit Agrawal <punit.agrawal@bytedance.com>,
Liang Ma <liangma@bytedance.com>,
Daniel Gregory <daniel.gregory@bytedance.com>, nd <nd@arm.com>
Subject: Re: [PATCH v2] eal/arm: replace RTE_BUILD_BUG on non-constant
Date: Mon, 6 May 2024 09:30:38 +0000 [thread overview]
Message-ID: <AS8PR08MB7080B8A0D0ED26A62074075F9E1C2@AS8PR08MB7080.eurprd08.prod.outlook.com> (raw)
In-Reply-To: <20240503182730.31693-1-daniel.gregory@bytedance.com>
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+ Arm team to the loop.
Removed invalid email address.
From: Daniel Gregory <daniel.gregory@bytedance.com>
Date: Saturday, May 4, 2024 at 2:27 AM
To: Ruifeng Wang <Ruifeng.Wang@arm.com>
Cc: dev@dpdk.org <dev@dpdk.org>, Punit Agrawal <punit.agrawal@bytedance.com>, Liang Ma <liangma@bytedance.com>, Daniel Gregory <daniel.gregory@bytedance.com>, Feifei Wang <Feifei.Wang2@arm.com>
Subject: [PATCH v2] eal/arm: replace RTE_BUILD_BUG on non-constant
The ARM implementation of rte_pause uses RTE_BUILD_BUG_ON to check
memorder, which is not constant. This causes compile errors when it is
enabled with RTE_ARM_USE_WFE. eg.
../lib/eal/arm/include/rte_pause_64.h: In function ‘rte_wait_until_equal_16’:
../lib/eal/include/rte_common.h:530:56: error: expression in static assertion is not constant
530 | #define RTE_BUILD_BUG_ON(condition) do { static_assert(!(condition), #condition); } while (0)
| ^~~~~~~~~~~~
../lib/eal/arm/include/rte_pause_64.h:156:9: note: in expansion of macro ‘RTE_BUILD_BUG_ON’
156 | RTE_BUILD_BUG_ON(memorder != rte_memory_order_acquire &&
| ^~~~~~~~~~~~~~~~
Fix the compile errors by replacing the check with an assert, like in
the generic implementation (lib/eal/include/generic/rte_pause.h).
Fixes: 875f350924b8 ("eal: add a new helper for wait until scheme")
Signed-off-by: Daniel Gregory <daniel.gregory@bytedance.com>
---
Cc: feifei.wang2@arm.com
---
lib/eal/arm/include/rte_pause_64.h | 8 +++++---
1 file changed, 5 insertions(+), 3 deletions(-)
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next prev parent reply other threads:[~2024-05-06 9:31 UTC|newest]
Thread overview: 19+ messages / expand[flat|nested] mbox.gz Atom feed top
2024-05-02 14:21 [PATCH] " Daniel Gregory
2024-05-02 16:20 ` Stephen Hemminger
2024-05-02 17:44 ` Daniel Gregory
2024-05-02 18:27 ` Stephen Hemminger
2024-05-02 21:48 ` Stephen Hemminger
2024-05-03 9:46 ` Daniel Gregory
2024-05-04 0:56 ` Stephen Hemminger
2024-05-09 11:02 ` Daniel Gregory
2024-05-03 13:32 ` David Marchand
2024-05-03 14:21 ` Daniel Gregory
2024-05-03 18:27 ` [PATCH v2] " Daniel Gregory
2024-05-03 18:30 ` Daniel Gregory
2024-05-04 0:59 ` Stephen Hemminger
2024-05-06 9:30 ` Ruifeng Wang [this message]
2024-05-11 17:00 ` Wathsala Wathawana Vithanage
2024-05-04 1:02 ` [PATCH] " Stephen Hemminger
2024-05-09 11:11 ` Daniel Gregory
2024-05-09 16:47 ` Tyler Retzlaff
2024-05-11 16:48 ` Wathsala Wathawana Vithanage
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