linux-kernel - Re: [PATCH] lib/genalloc.c: rename addr_in_gen_pool to gen_pool_has

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Date:   Fri, 28 Dec 2018 15:39:58 -0800
From:   Andrew Morton <akpm@...ux-foundation.org>
To:     Christoph Hellwig <hch@....de>
Cc:     Huang Shijie <sjhuang@...vatar.ai>, linux@...linux.org.uk,
        arnd@...db.de, gregkh@...uxfoundation.org,
        m.szyprowski@...sung.com, robin.murphy@....com,
        sfr@...b.auug.org.au, linux-arm-kernel@...ts.infradead.org,
        linux-kernel@...r.kernel.org, iommu@...ts.linux-foundation.org,
        shijie8@...il.com
Subject: Re: [PATCH] lib/genalloc.c: rename addr_in_gen_pool to
 gen_pool_has_addr

On Fri, 28 Dec 2018 09:48:34 +0100 Christoph Hellwig <hch@....de> wrote:

> On Fri, Dec 28, 2018 at 04:39:50PM +0800, Huang Shijie wrote:
> > Follow the kernel conventions, rename addr_in_gen_pool to
> > gen_pool_has_addr.
> 
> Which convention?

That symbols from subsystem foo should be called foo_*.  Not uniformly
observed by any means, but it is a thing.

> The old name certainly looks more sensible to me.

It does read better, but it's rather a standout in this case:

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(addr_in_gen_pool);
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);