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net/smc: fix valid DMBE buffer sizes

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[ Upstream commit ef12ad45880b696eb993d86c481ca891836ab593 ]

The SMCD_DMBE_SIZES should include all valid DMBE buffer sizes, so the
correct value is 6 which means 1MB. With 7 the registration of an ISM
buffer would always fail because of the invalid size requested.
Fix that and set the value to 6.

Fixes: c6ba7c9ba43d ("net/smc: add base infrastructure for SMC-D and ISM")
Signed-off-by: Karsten Graul <kgraul@linux.ibm.com>
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This commit is contained in:
Karsten Graul 2020-10-14 19:43:28 +02:00 committed by Greg Kroah-Hartman
parent cdd3c52a98
commit 926210cd81
1 changed files with 1 additions and 1 deletions
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2
net/smc/smc_core.c
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@ -795,7 +795,7 @@ static struct smc_buf_desc *smcr_new_buf_create(struct smc_link_group *lgr,
return buf_desc;
}
#define SMCD_DMBE_SIZES 7 /* 0 -> 16KB, 1 -> 32KB, .. 6 -> 1MB */
#define SMCD_DMBE_SIZES 6 /* 0 -> 16KB, 1 -> 32KB, .. 6 -> 1MB */
static struct smc_buf_desc *smcd_new_buf_create(struct smc_link_group *lgr,
bool is_dmb, int bufsize)