linux-kernel - Re: [PATCH 2/2] lib/genalloc.c: export symbol addr_in_gen

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Date:   Fri, 28 Dec 2018 15:45:32 +0800
From:   Huang Shijie <sjhuang@...vatar.ai>
To:     Andrew Morton <akpm@...ux-foundation.org>
CC:     <sfr@...b.auug.org.au>, <alexey.skidanov@...el.com>,
        <linux-kernel@...r.kernel.org>, <shijie8@...il.com>
Subject: Re: [PATCH 2/2] lib/genalloc.c: export symbol addr_in_gen_pool

On Thu, Dec 27, 2018 at 09:49:29PM -0800, Andrew Morton wrote:
> On Mon, 24 Dec 2018 15:06:22 +0800 Huang Shijie <sjhuang@...vatar.ai> wrote:
> 
> > We may use the addr_in_gen_pool() in the driver module.
> > So export the addr_in_gen_pool for the compiling.
> > 
> > ...
> >
> > --- a/lib/genalloc.c
> > +++ b/lib/genalloc.c
> > @@ -450,6 +450,7 @@ bool addr_in_gen_pool(struct gen_pool *pool, unsigned long start,
> >  	rcu_read_unlock();
> >  	return found;
> >  }
> > +EXPORT_SYMBOL(addr_in_gen_pool);
> >  
> >  /**
> >   * gen_pool_avail - get available free space of the pool
> 
> OK, but...  The name is poor.
> 
> q:/usr/src/25> grep EXPORT_SYMBOL lib/genalloc.c
> EXPORT_SYMBOL(gen_pool_create);
> EXPORT_SYMBOL(gen_pool_add_virt);
> EXPORT_SYMBOL(gen_pool_virt_to_phys);
> EXPORT_SYMBOL(gen_pool_destroy);
> EXPORT_SYMBOL(gen_pool_alloc);
> EXPORT_SYMBOL(gen_pool_alloc_algo);
> EXPORT_SYMBOL(gen_pool_dma_alloc);
> EXPORT_SYMBOL(gen_pool_free);
> EXPORT_SYMBOL(gen_pool_for_each_chunk);
> EXPORT_SYMBOL_GPL(gen_pool_avail);
> EXPORT_SYMBOL_GPL(gen_pool_size);
> EXPORT_SYMBOL(gen_pool_set_algo);
> EXPORT_SYMBOL(gen_pool_first_fit);
> EXPORT_SYMBOL(gen_pool_first_fit_align);
> EXPORT_SYMBOL(gen_pool_fixed_alloc);
> EXPORT_SYMBOL(gen_pool_first_fit_order_align);
> EXPORT_SYMBOL(gen_pool_best_fit);
> EXPORT_SYMBOL_GPL(gen_pool_get);
> EXPORT_SYMBOL(devm_gen_pool_create);
> EXPORT_SYMBOL_GPL(of_gen_pool_get);
> 
> See?  Almost everything is called gen_pool_foo.  Which is correct as
> per kernel conventions.  We should globally rename this to
> gen_pool_has_addr or similar.
okay, I will do it right now..

Thanks
Huang Shijie