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    Subject[PATCH 5.4 234/314] NTB: perf: Dont require one more memory window than number of peers
    Date
    From: Logan Gunthorpe <logang@deltatee.com>

    [ Upstream commit a9c4211ac918ade1522aced6b5acfbe824722f7d ]

    ntb_perf should not require more than one memory window per peer. This
    was probably an off-by-one error.

    Fixes: 5648e56d03fa ("NTB: ntb_perf: Add full multi-port NTB API support")
    Signed-off-by: Logan Gunthorpe <logang@deltatee.com>
    Acked-by: Allen Hubbe <allenbh@gmail.com>
    Tested-by: Alexander Fomichev <fomichev.ru@gmail.com>
    Signed-off-by: Jon Mason <jdmason@kudzu.us>
    Signed-off-by: Sasha Levin <sashal@kernel.org>
    ---
    drivers/ntb/test/ntb_perf.c | 2 +-
    1 file changed, 1 insertion(+), 1 deletion(-)

    diff --git a/drivers/ntb/test/ntb_perf.c b/drivers/ntb/test/ntb_perf.c
    index 52c29791fc02a..3817eadab2cf9 100644
    --- a/drivers/ntb/test/ntb_perf.c
    +++ b/drivers/ntb/test/ntb_perf.c
    @@ -653,7 +653,7 @@ static int perf_init_service(struct perf_ctx *perf)
    {
    u64 mask;

    - if (ntb_peer_mw_count(perf->ntb) < perf->pcnt + 1) {
    + if (ntb_peer_mw_count(perf->ntb) < perf->pcnt) {
    dev_err(&perf->ntb->dev, "Not enough memory windows\n");
    return -EINVAL;
    }
    --
    2.25.1


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