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From: Bruce Richardson <bruce.richardson@intel.com>
To: Michael Qiu <qdy220091330@gmail.com>
Cc: dev@dpdk.org
Subject: Re: [dpdk-dev] [PATCH v2] Fix two compile issues with i686 platform
Date: Wed, 3 Dec 2014 15:40:29 +0000
Message-ID: <20141203154029.GA6340@bricha3-MOBL3> (raw)
In-Reply-To: <1417594223-2573-1-git-send-email-michael.qiu@intel.com>

On Wed, Dec 03, 2014 at 04:10:23PM +0800, Michael Qiu wrote:
> lib/librte_eal/linuxapp/eal/eal_memory.c:324:4: error: comparison
> is always false due to limited range of data type [-Werror=type-limits]
>     || (hugepage_sz == RTE_PGSIZE_16G)) {
>     ^
> cc1: all warnings being treated as errors
> 
> lib/librte_eal/linuxapp/eal/eal.c(461): error #2259: non-pointer
> conversion from "long long" to "void *" may lose significant bits
>    RTE_PTR_ALIGN_CEIL((uintptr_t)addr, RTE_PGSIZE_16M);
> 
> This was introuduced by commit b77b5639:
>         mem: add huge page sizes for IBM Power
> 
> The root cause is that size_t and uintptr_t are 32-bit in i686
> platform, but RTE_PGSIZE_16M and RTE_PGSIZE_16G are always 64-bit.
> 
> Define RTE_PGSIZE_16G only in 64 bit platform to avoid
> this issue.
> 
> Signed-off-by: Michael Qiu <michael.qiu@intel.com>
Minor comment below.

Acked-by: Bruce Richardson <bruce.richardson@intel.com>

> ---
>  app/test/test_memzone.c                    | 18 ++++++++++++------
>  lib/librte_eal/common/eal_common_memzone.c |  2 ++
>  lib/librte_eal/common/include/rte_memory.h | 14 ++++++++------
>  lib/librte_eal/linuxapp/eal/eal_memory.c   | 12 +++++-------
>  4 files changed, 27 insertions(+), 19 deletions(-)
> 
... snip ...
> --- a/lib/librte_eal/common/include/rte_memory.h
> +++ b/lib/librte_eal/common/include/rte_memory.h
> @@ -53,12 +53,14 @@ extern "C" {
>  #endif
>  
>  enum rte_page_sizes {
> -	RTE_PGSIZE_4K = 1ULL << 12,
> -	RTE_PGSIZE_2M = 1ULL << 21,
> -	RTE_PGSIZE_1G = 1ULL << 30,
> -	RTE_PGSIZE_64K = 1ULL << 16,
> -	RTE_PGSIZE_16M = 1ULL << 24,
> -	RTE_PGSIZE_16G = 1ULL << 34
> +	RTE_PGSIZE_4K	= 1UL << 12,
> +	RTE_PGSIZE_2M	= 1UL << 21,
> +	RTE_PGSIZE_1G	= 1UL << 30,
> +	RTE_PGSIZE_64K	= 1UL << 16,
> +	RTE_PGSIZE_16M	= 1UL << 24,
> +#ifdef RTE_ARCH_64
> +	RTE_PGSIZE_16G	= 1ULL << 34
you don't need the "LL" here as long type is 64-bits on 64-bit systems. Changing
it to 1UL << 34 will keep all entries consistent.

  parent reply	other threads:[~2014-12-03 17:34 UTC|newest]

Thread overview: 29+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
     [not found] <1417329845-7482-1-git-send-email-michael.qiu@intel.com>
     [not found] ` <1417594223-2573-1-git-send-email-michael.qiu@intel.com>
2014-12-03 11:32   ` Qiu, Michael
2014-12-03 15:40   ` Bruce Richardson [this message]
2014-12-04  2:49     ` Qiu, Michael
2014-12-04  9:03       ` Thomas Monjalon
2014-12-04 10:21         ` Qiu, Michael
2014-12-04  9:12           ` [dpdk-dev] [PATCH v3] " Michael Qiu
2014-12-05  6:56             ` Qiu, Michael
2014-12-05  7:04               ` Chao Zhu
2014-12-05  8:31             ` Chao Zhu
2014-12-05 14:22               ` Neil Horman
2014-12-05 15:02                 ` Bruce Richardson
2014-12-05 15:24                   ` Neil Horman
2014-12-08  2:46                     ` Qiu, Michael
2014-12-08  2:59                       ` Neil Horman
2014-12-08  3:37                         ` Qiu, Michael
2014-12-08  4:57                           ` Qiu, Michael
2014-12-08 11:37                           ` Neil Horman
2014-12-08 11:50                             ` Thomas Monjalon
2014-12-08 14:59                             ` Qiu, Michael
2014-12-10 10:46             ` [dpdk-dev] [PATCH 0/2 v4] " Michael Qiu
2014-12-10 10:46               ` [dpdk-dev] [PATCH 1/2 v4] Fix compile issue with hugepage_sz in 32-bit system Michael Qiu
2014-12-10 10:46               ` [dpdk-dev] [PATCH 2/2] Fix compile issue of eal with icc compile Michael Qiu
2014-12-11  0:56               ` [dpdk-dev] [PATCH 0/2 v4] Fix two compile issues with i686 platform Thomas Monjalon
2014-12-11 13:25                 ` Neil Horman
2014-12-11 15:28                   ` Qiu, Michael
2014-12-11 21:21                     ` Thomas Monjalon
2014-12-12 11:38                       ` Neil Horman
2014-12-12 15:09                         ` Thomas Monjalon
2014-12-12 15:29                           ` Neil Horman

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