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SubjectRe: [PATCH net] net/smc: Fix dependency of SMC on ISM
On Fri, Oct 06, 2023 at 02:58:47PM +0200, Gerd Bayer wrote:
> When the SMC protocol is built into the kernel proper while ISM is
> configured to be built as module, linking the kernel fails due to
> unresolved dependencies out of net/smc/smc_ism.o to
> ism_get_smcd_ops, ism_register_client, and ism_unregister_client
> as reported via the linux-next test automation (see link).
> This however is a bug introduced a while ago.
>
> Correct the dependency list in ISM's and SMC's Kconfig to reflect the
> dependencies that are actually inverted. With this you cannot build a
> kernel with CONFIG_SMC=y and CONFIG_ISM=m. Either ISM needs to be 'y',
> too - or a 'n'. That way, SMC can still be configured on non-s390
> architectures that do not have (nor need) an ISM driver.
>
> Fixes: 89e7d2ba61b7 ("net/ism: Add new API for client registration")
>
> Reported-by: Randy Dunlap <rdunlap@infradead.org>
> Closes: https://lore.kernel.org/linux-next/d53b5b50-d894-4df8-8969-fd39e63440ae@infradead.org/
> Co-developed-by: Wenjia Zhang <wenjia@linux.ibm.com>
> Signed-off-by: Wenjia Zhang <wenjia@linux.ibm.com>
> Signed-off-by: Gerd Bayer <gbayer@linux.ibm.com>

Reviewed-by: Simon Horman <horms@kernel.org>
Tested-by: Simon Horman <horms@kernel.org> # build-tested

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