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From: Aneesh V <aneesh@ti.com>
To: u-boot@lists.denx.de
Subject: [U-Boot] [PATCH 7/8] armv7: adapt omap3 to the new cache maintenance framework
Date: Tue, 18 Jan 2011 11:01:57 +0530	[thread overview]
Message-ID: <4D3525CD.8090001@ti.com> (raw)
In-Reply-To: <20110117215511.CEFB5D1CAD5@gemini.denx.de>

Dear Wolfgang,

On Tuesday 18 January 2011 03:25 AM, Wolfgang Denk wrote:
> Dear Aneesh V,
>
> In message<4D2B1A90.9030109@ti.com>  you wrote:
>>
>>>> +struct __attribute__ ((__packed__)) emu_hal_params {
>>>> +	u32 num_params;
>>>> +	u32 param1;
>>>> +};
>>>
>>> Why exactly do we need the "__attribute__ ((__packed__))" here?
>>
>> Because a pointer to it has to be passed to ROM code and ROM code
>> wouldn't expect any padding.
>
> But padding would only be needed if there were any alignment
> requirements requiring it. There are none here.

Yes. But, is that guaranteed?  I didn't want to make it compiler
dependent. Isn't it safer to use '__attribute__ ((__packed__))'

Best regards,
Aneesh

  reply	other threads:[~2011-01-18  5:31 UTC|newest]

Thread overview: 50+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2010-12-22 11:54 [U-Boot] [PATCH 0/8] armv7: cache maintenance operations Aneesh V
2010-12-22 11:54 ` [U-Boot] [PATCH 1/8] arm: make default implementation of cache_flush() weakly linked Aneesh V
2011-01-08  6:40   ` Albert ARIBAUD
2010-12-22 11:54 ` [U-Boot] [PATCH 2/8] armv7: cache maintenance operations for armv7 Aneesh V
2011-01-08  6:36   ` Albert ARIBAUD
2011-01-08  8:40     ` Albert ARIBAUD
2011-01-08 10:06     ` Aneesh V
2011-01-12 19:18       ` Albert ARIBAUD
2011-01-13 11:10         ` Aneesh V
2011-01-13 12:14         ` Aneesh V
2011-01-13 17:12           ` Albert ARIBAUD
2011-01-08 13:17     ` Aneesh V
2011-01-08 14:06       ` Albert ARIBAUD
2011-01-09 22:41         ` Wolfgang Denk
2011-01-10  4:56           ` Aneesh V
2011-01-17 21:47             ` Wolfgang Denk
2011-01-12  9:08         ` Aneesh V
2011-01-12 19:23           ` Albert ARIBAUD
2011-01-13 12:05             ` Aneesh V
2011-01-13 13:14               ` Albert ARIBAUD
2011-01-13 14:30                 ` Aneesh V
2011-01-13 17:06                   ` Albert ARIBAUD
2011-03-01 11:54     ` Aneesh V
2011-03-01 13:36       ` Albert ARIBAUD
2010-12-22 11:54 ` [U-Boot] [PATCH 3/8] armv7: integrate cache maintenance support Aneesh V
2011-01-08  6:54   ` Albert ARIBAUD
2011-01-08  8:15     ` Aneesh V
2010-12-22 11:54 ` [U-Boot] [PATCH 4/8] arm: minor fixes for cache and mmu handling Aneesh V
2011-01-08  7:04   ` Albert ARIBAUD
2011-01-08  9:13     ` Aneesh V
2010-12-22 11:54 ` [U-Boot] [PATCH 5/8] armv7: add PL310 support to u-boot Aneesh V
2011-01-09 22:48   ` Wolfgang Denk
2011-01-10 13:41     ` Aneesh V
2010-12-22 11:54 ` [U-Boot] [PATCH 6/8] armv7: adapt omap4 to the new cache maintenance framework Aneesh V
2011-01-09 22:52   ` Wolfgang Denk
2011-01-10 14:33     ` Aneesh V
2011-01-17 21:52       ` Wolfgang Denk
2010-12-22 11:54 ` [U-Boot] [PATCH 7/8] armv7: adapt omap3 " Aneesh V
2011-01-09 22:57   ` Wolfgang Denk
2011-01-10 14:41     ` Aneesh V
2011-01-17 21:55       ` Wolfgang Denk
2011-01-18  5:31         ` Aneesh V [this message]
2011-01-18  9:23           ` Wolfgang Denk
2010-12-22 11:54 ` [U-Boot] [PATCH 8/8] armv7: adapt s5pc1xx " Aneesh V
2010-12-27  7:25   ` Minkyu Kang
2010-12-27 11:22     ` Aneesh V
2011-01-07  5:27       ` Minkyu Kang
2010-12-23  4:53 ` [U-Boot] [PATCH 0/8] armv7: cache maintenance operations Steve Sakoman
2010-12-28 19:51 ` Paulraj, Sandeep
2011-01-08  7:07   ` Albert ARIBAUD

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