linux-kernel - Re: [PATCH] linux/kernel.h: add container

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Message-ID: <20200827121941.GC420527@kroah.com>
Date:   Thu, 27 Aug 2020 14:19:41 +0200
From:   Greg Kroah-Hartman <gregkh@...uxfoundation.org>
To:     Kees Cook <keescook@...omium.org>
Cc:     Allen Pais <allen.lkml@...il.com>, torvalds@...ux-foundation.org,
        akpm@...ux-foundation.org, tglx@...utronix.de,
        linux-kernel@...r.kernel.org,
        "James E . J . Bottomley" <James.Bottomley@...senpartnership.com>,
        Jens Axboe <axboe@...nel.dk>
Subject: Re: [PATCH] linux/kernel.h: add container_from()

On Wed, Aug 26, 2020 at 07:31:40PM -0700, Kees Cook wrote:
> On Thu, Aug 27, 2020 at 07:06:36AM +0530, Allen Pais wrote:
> > Introduce container_from() as a generic helper instead of
> > sub-systems defining a private from_* API
> > (Eg: from_tasklets recently introduced in
> > 12cc923f1ccc: Tasklet: Introduce new initialization API)
> > 
> > The helper is similar to container_of() in argument order
> > with the difference of naming the containing structure instead
> > of having to specify its type.
> > 
> > Suggested-by: James E.J. Bottomley <James.Bottomley@...senPartnership.com>
> > Suggested-by: Greg Kroah-Hartman <gregkh@...uxfoundation.org>
> > Suggested-by: Jens Axboe <axboe@...nel.dk>
> > Signed-off-by: Allen Pais <allen.lkml@...il.com>
> 
> Acked-by: Kees Cook <keescook@...omium.org>
> 
> Who can carry this so it can get used by multiple trees? Should I keep a
> git branch folks should merge when taking Allen's conversion patches?

I can put it in my driver core tree, and give everyone a stable, signed,
tag to pull it from so that it can get propagated everywhere, if that
makes it easy for others to use it now.

thanks,

greg k-h