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net/smc: return the right falback reason when prefix checks fail

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commit 4abbd2e3c1db671fa1286390f1310aec78386f1d upstream.

In the smc_listen_work(), if smc_listen_prfx_check() failed,
the real reason: SMC_CLC_DECL_DIFFPREFIX was dropped, and
SMC_CLC_DECL_NOSMCDEV was returned.

Althrough this is also kind of SMC_CLC_DECL_NOSMCDEV, but return
the real reason is much friendly for debugging.

Fixes: e49300a6bf ("net/smc: add listen processing for SMC-Rv2")
Signed-off-by: Dust Li <dust.li@linux.alibaba.com>
Reviewed-by: Alexandra Winter <wintera@linux.ibm.com>
Reviewed-by: Wenjia Zhang <wenjia@linux.ibm.com>
Link: https://lore.kernel.org/r/20231012123729.29307-1-dust.li@linux.alibaba.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This commit is contained in:
Dust Li 2023-10-12 20:37:29 +08:00 • committed by Greg Kroah-Hartman
parent d994502fdc
commit 753ef5ef4c
1 changed files with 1 additions and 1 deletions
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2
net/smc/af_smc.c
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@ -2322,7 +2322,7 @@ static int smc_listen_find_device(struct smc_sock *new_smc,
smc_find_ism_store_rc(rc, ini);
return (!rc) ? 0 : ini->rc;
}
return SMC_CLC_DECL_NOSMCDEV;
return prfx_rc;
}
/* listen worker: finish RDMA setup */