From: Mugunthan V N <mugunthanvnm@ti.com>
To: Grygorii Strashko <grygorii.strashko@ti.com>,
"David S. Miller" <davem@davemloft.net>, <netdev@vger.kernel.org>
Cc: Sekhar Nori <nsekhar@ti.com>, <linux-kernel@vger.kernel.org>,
<linux-omap@vger.kernel.org>
Subject: Re: [PATCH] net: ethernet: ti: cpdma: remove used_desc counter
Date: Tue, 9 Aug 2016 13:56:15 +0530 [thread overview]
Message-ID: <d6ed364c-d4e4-db7a-545b-dd74b3c1c1ab@ti.com> (raw)
In-Reply-To: <20160804152051.30565-1-grygorii.strashko@ti.com>
On Thursday 04 August 2016 08:50 PM, Grygorii Strashko wrote:
> The struct cpdma_desc_pool->used_desc field can be safely removed from
> CPDMA driver (and hot patch) because used_descs counter is used just
> for pool consistency check at CPDMA deinitialization and now this
> check can be re-implemnted using gen_pool_size(pool->gen_pool) !=
> gen_pool_avail(pool->gen_pool).
> More over, this will allow to get rid of warnings in
> cpdma_desc_pool_destro()-> WARN_ON(pool->used_desc) which may happen
> because the used_descs is used unprotected, since CPDMA has been
> switched to use genalloc, and may get wrong values on SMP.
>
> Hence, remove used_desc from struct cpdma_desc_pool.
>
> Signed-off-by: Grygorii Strashko <grygorii.strashko@ti.com>
Reviewed-by: Mugunthan V N <mugunthanvnm@ti.com>
Regards
Mugunthan V N
prev parent reply other threads:[~2016-08-09 8:26 UTC|newest]
Thread overview: 3+ messages / expand[flat|nested] mbox.gz Atom feed top
2016-08-04 15:20 [PATCH] net: ethernet: ti: cpdma: remove used_desc counter Grygorii Strashko
2016-08-04 15:56 ` Ivan Khoronzhuk
2016-08-09 8:26 ` Mugunthan V N [this message]
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