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Date: Wed, 15 Nov 2023 17:06:37 +0000
From: Simon Horman <horms@...nel.org>
To: Gerd Bayer <gbayer@...ux.ibm.com>
Cc: Alexandra Winter <wintera@...ux.ibm.com>,
	Wenjia Zhang <wenjia@...ux.ibm.com>,
	Paolo Abeni <pabeni@...hat.com>, Wen Gu <guwen@...ux.alibaba.com>,
	Randy Dunlap <rdunlap@...radead.org>,
	Heiko Carstens <hca@...ux.ibm.com>,
	Vasily Gorbik <gor@...ux.ibm.com>,
	Alexander Gordeev <agordeev@...ux.ibm.com>,
	Christian Borntraeger <borntraeger@...ux.ibm.com>,
	Sven Schnelle <svens@...ux.ibm.com>, alibuda@...ux.alibaba.com,
	tonylu@...ux.alibaba.com, dust.li@...ux.alibaba.com,
	linux-s390@...r.kernel.org, netdev@...r.kernel.org
Subject: Re: [PATCH net v2] s390/ism: ism driver implies smc protocol

On Wed, Nov 15, 2023 at 04:59:58PM +0100, Gerd Bayer wrote:
> Since commit a72178cfe855 ("net/smc: Fix dependency of SMC on ISM")
> you can build the ism code without selecting the SMC network protocol.
> That leaves some ism functions be reported as unused. Move these
> functions under the conditional compile with CONFIG_SMC.
> 
> Also codify the suggestion to also configure the SMC protocol in ism's
> Kconfig - but with an "imply" rather than a "select" as SMC depends on
> other config options and allow for a deliberate decision not to build
> SMC. Also, mention that in ISM's help.
> 
> Fixes: a72178cfe855 ("net/smc: Fix dependency of SMC on ISM")
> Reported-by: Randy Dunlap <rdunlap@...radead.org>
> Closes: https://lore.kernel.org/netdev/afd142a2-1fa0-46b9-8b2d-7652d41d3ab8@infradead.org/
> Signed-off-by: Gerd Bayer <gbayer@...ux.ibm.com>
> Reviewed-by: Wenjia Zhang <wenjia@...ux.ibm.com>
> ---
>  drivers/s390/net/Kconfig   |  3 +-
>  drivers/s390/net/ism_drv.c | 93 +++++++++++++++++++-------------------
>  2 files changed, 48 insertions(+), 48 deletions(-)
> 
> Hi Simon,
> 
> this is version 2, that removes the unused forward declaration that you
> found in v1 per:
> https://lore.kernel.org/netdev/20231115102304.GN74656@kernel.org/#t
> Other than that the patch is unchanged.

Thanks Gerd,

this version looks good to me.

Reviewed-by: Simon Horman <horms@...nel.org>

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