linux-kernel - Re: 2.6.24-rc3-mm2 - add-64-bit-capability-support-to-the-kernel

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Message-ID: <47575492.5040707@kernel.org>
Date:	Wed, 05 Dec 2007 17:46:58 -0800
From:	Andrew Morgan <morgan@...nel.org>
To:	"Serge E. Hallyn" <serue@...ibm.com>
CC:	Valdis.Kletnieks@...edu, Andrew Morton <akpm@...ux-foundation.org>,
	linux-kernel@...r.kernel.org
Subject: Re: 2.6.24-rc3-mm2 - add-64-bit-capability-support-to-the-kernel

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Serge E. Hallyn wrote:
> Quoting Valdis.Kletnieks@...edu (Valdis.Kletnieks@...edu):
>> Question:
>>
>> The patch does the semantic equivalent of:
>>
>> -#define cap_clear(c)         do { cap_t(c) =  0; } while(0)
>> -#define cap_set_full(c)      do { cap_t(c) = ~0; } while(0)
>>
>> +# define cap_clear(c)         do { (c) = __cap_empty_set; } while (0)
>> +# define cap_set_full(c)      do { (c) = __cap_full_set; } while (0)
>> +# define cap_set_init_eff(c)  do { (c) = __cap_init_eff_set; } while (0)
>>
>> Was it intentional, or an oversight, that this blows chunks in modules
>> that try to use cap_clear() or cap_set_full() because the __cap_*
>> symbols don't get an EXPORT_SYMBOL() attached to them?

Definitely an oversight. Thanks Serge for the fix!

Cheers

Andrew
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