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nvme-fabrics: rework nvmf_get_address() for variable options

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Revise nvmf_get_address() string to account for not all options being
present.

Signed-off-by: James Smart <james.smart@broadcom.com>
Acked-by: Johannes Thumshirn <jth@kernel.org>
Reviewed-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Sagi Grimberg <sagi@grimberg.me>
This commit is contained in:
James Smart 2016-08-02 10:40:01 +03:00 committed by Sagi Grimberg
parent 005043ac31
commit 0fe51ff269
1 changed files with 10 additions and 2 deletions
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12
drivers/nvme/host/fabrics.c
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@ -109,8 +109,16 @@ static void nvmf_host_put(struct nvmf_host *host)
*/
int nvmf_get_address(struct nvme_ctrl *ctrl, char *buf, int size)
{
return snprintf(buf, size, "traddr=%s,trsvcid=%s\n",
ctrl->opts->traddr, ctrl->opts->trsvcid);
int len = 0;
if (ctrl->opts->mask & NVMF_OPT_TRADDR)
len += snprintf(buf, size, "traddr=%s", ctrl->opts->traddr);
if (ctrl->opts->mask & NVMF_OPT_TRSVCID)
len += snprintf(buf + len, size - len, "%strsvcid=%s",
(len) ? "," : "", ctrl->opts->trsvcid);
len += snprintf(buf + len, size - len, "\n");
return len;
}
EXPORT_SYMBOL_GPL(nvmf_get_address);