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From: David Laight <David.Laight@ACULAB.COM>
To: 'Alexey Dobriyan' <adobriyan@gmail.com>,
	"akpm@linux-foundation.org" <akpm@linux-foundation.org>
Cc: "linux-kernel@vger.kernel.org" <linux-kernel@vger.kernel.org>
Subject: RE: [PATCH 1/2] add typeof_member() macro
Date: Thu, 30 May 2019 11:37:42 +0000	[thread overview]
Message-ID: <a32bb1376821422fa3c647c01f3f1a95@AcuMS.aculab.com> (raw)
In-Reply-To: <20190529190720.GA5703@avx2>

From: Alexey Dobriyan
> Sent: 29 May 2019 20:07
> 
> Add typeof_member() macro so that types can be exctracted without
> introducing dummy variables.
> 
> Signed-off-by: Alexey Dobriyan <adobriyan@gmail.com>
> ---
> 
>  include/linux/kernel.h |    2 ++
>  1 file changed, 2 insertions(+)
> 
> --- a/include/linux/kernel.h
> +++ b/include/linux/kernel.h
> @@ -88,6 +88,8 @@
>   */
>  #define FIELD_SIZEOF(t, f) (sizeof(((t*)0)->f))
> 
> +#define typeof_member(T, m)	typeof(((T*)0)->m)

Should probably be 't' (not 'T') and upper case ?

Hmmm.... the #define is longer that what it expands to ...

	David

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Registered Address Lakeside, Bramley Road, Mount Farm, Milton Keynes, MK1 1PT, UK
Registration No: 1397386 (Wales)

  parent reply	other threads:[~2019-05-30 11:37 UTC|newest]

Thread overview: 6+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2019-05-29 19:07 Alexey Dobriyan
2019-05-29 19:11 ` [PATCH 2/2] proc: use " Alexey Dobriyan
2019-05-29 22:33   ` Andrew Morton
2019-05-30 11:37 ` David Laight [this message]
2019-05-30 11:53   ` [PATCH 1/2] add " Joe Perches
2019-05-30 19:57   ` Alexey Dobriyan

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