From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from smtp.kernel.org (aws-us-west-2-korg-mail-1.web.codeaurora.org [10.30.226.201]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id 8EE381EA8C for ; Wed, 7 Jun 2023 20:38:22 +0000 (UTC) Received: by smtp.kernel.org (Postfix) with ESMTPSA id B86F3C433EF; Wed, 7 Jun 2023 20:38:21 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=linuxfoundation.org; s=korg; t=1686170302; bh=8+mQAWJMmmf7sBg/yUWDv4VgtWsALOQO1EhL1CaFR2k=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=fDrWreRkVxNbuksE+ocpGRCZHSZimax3LWFkes1thqSPgZp3h/NTNEqngkyBxEvtL Y7RIhHBy1mWS7/c2s6I/NdyFe8GuXIDD0pxavEntnMmD7j5isdKe1+yzxYWA5EPZdB 26J8kDmfEj6rZx+c8FjypEXX3HydCxNLKFX34Axk= From: Greg Kroah-Hartman To: stable@vger.kernel.org Cc: Greg Kroah-Hartman , patches@lists.linux.dev, Wen Gu , Paolo Abeni , Sasha Levin Subject: [PATCH 6.1 033/225] net/smc: Scan from current RMB list when no position specified Date: Wed, 7 Jun 2023 22:13:46 +0200 Message-ID: <20230607200915.401328808@linuxfoundation.org> X-Mailer: git-send-email 2.41.0 In-Reply-To: <20230607200913.334991024@linuxfoundation.org> References: <20230607200913.334991024@linuxfoundation.org> User-Agent: quilt/0.67 Precedence: bulk X-Mailing-List: patches@lists.linux.dev List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit From: Wen Gu [ Upstream commit b24aa141c2ff26c919237aee61ea1818fc6780d9 ] When finding the first RMB of link group, it should start from the current RMB list whose index is 0. So fix it. Fixes: b4ba4652b3f8 ("net/smc: extend LLC layer for SMC-Rv2") Signed-off-by: Wen Gu Signed-off-by: Paolo Abeni Signed-off-by: Sasha Levin --- net/smc/smc_llc.c | 5 ++++- 1 file changed, 4 insertions(+), 1 deletion(-) diff --git a/net/smc/smc_llc.c b/net/smc/smc_llc.c index 524649d0ab652..85af5bfa96228 100644 --- a/net/smc/smc_llc.c +++ b/net/smc/smc_llc.c @@ -578,7 +578,10 @@ static struct smc_buf_desc *smc_llc_get_next_rmb(struct smc_link_group *lgr, { struct smc_buf_desc *buf_next; - if (!buf_pos || list_is_last(&buf_pos->list, &lgr->rmbs[*buf_lst])) { + if (!buf_pos) + return _smc_llc_get_next_rmb(lgr, buf_lst); + + if (list_is_last(&buf_pos->list, &lgr->rmbs[*buf_lst])) { (*buf_lst)++; return _smc_llc_get_next_rmb(lgr, buf_lst); } -- 2.39.2