| Message ID | ccf004469e02fb5bd7ec822414b9a98b0015f4a3.1604930005.git.geliangtang@gmail.com (mailing list archive) |
|---|---|
| State | Not Applicable |
| Delegated to: | Netdev Maintainers |
| Headers | show |
| Series | fix static checker warnings in | expand |
| Context | Check | Description |
|---|---|---|
| netdev/apply | fail | Patch does not apply to net |
| netdev/tree_selection | success | Clearly marked for net |
Hi Geliang, Dan, On 09/11/2020 14:59, Geliang Tang wrote: > Fix the following Smatch complaint: Thanks for the report and the patch! > net/mptcp/pm_netlink.c:213 mptcp_pm_add_timer() > warn: variable dereferenced before check 'msk' (see line 208) > > net/mptcp/pm_netlink.c > 207 struct mptcp_sock *msk = entry->sock; > 208 struct sock *sk = (struct sock *)msk; > 209 struct net *net = sock_net(sk); > ^^ > "msk" dereferenced here. > > 210 > 211 pr_debug("msk=%p", msk); > 212 > 213 if (!msk) > ^^^^ > Too late. > > 214 return; > 215 > > Fixes: 93f323b9cccc ("mptcp: add a new sysctl add_addr_timeout") > Reported-by: Dan Carpenter <dan.carpenter@oracle.com> > Signed-off-by: Geliang Tang <geliangtang@gmail.com> > Reviewed-by: Dan Carpenter <dan.carpenter@oracle.com> A small detail (I think): the Signed-off-by of the sender (Geliang) should be the last one in the list if I am not mistaken. But I guess this is not blocking. Reviewed-by: Matthieu Baerts <matthieu.baerts@tessares.net> Cheers, Matt
On Mon, Nov 09, 2020 at 05:28:54PM +0100, Matthieu Baerts wrote: > Hi Geliang, Dan, > > On 09/11/2020 14:59, Geliang Tang wrote: > > Fix the following Smatch complaint: > > Thanks for the report and the patch! > > > net/mptcp/pm_netlink.c:213 mptcp_pm_add_timer() > > warn: variable dereferenced before check 'msk' (see line 208) > > > > net/mptcp/pm_netlink.c > > 207 struct mptcp_sock *msk = entry->sock; > > 208 struct sock *sk = (struct sock *)msk; > > 209 struct net *net = sock_net(sk); > > ^^ > > "msk" dereferenced here. > > > > 210 > > 211 pr_debug("msk=%p", msk); > > 212 > > 213 if (!msk) > > ^^^^ > > Too late. > > > > 214 return; > > 215 > > > > Fixes: 93f323b9cccc ("mptcp: add a new sysctl add_addr_timeout") > > Reported-by: Dan Carpenter <dan.carpenter@oracle.com> > > Signed-off-by: Geliang Tang <geliangtang@gmail.com> > > Reviewed-by: Dan Carpenter <dan.carpenter@oracle.com> > > A small detail (I think): the Signed-off-by of the sender (Geliang) should > be the last one in the list if I am not mistaken. > But I guess this is not blocking. Generally, I like them to be in chronological order. For other tags like here it doesn't matter, but for signed-off-bys they only make sense in chronological order. regards, dan carpenter
On Mon, 9 Nov 2020 21:34:19 +0300 Dan Carpenter wrote:
> Generally, I like them to be in chronological order.
+1
On Mon, 9 Nov 2020 17:28:54 +0100 Matthieu Baerts wrote: > A small detail (I think): the Signed-off-by of the sender (Geliang) > should be the last one in the list if I am not mistaken. > But I guess this is not blocking. > > Reviewed-by: Matthieu Baerts <matthieu.baerts@tessares.net> I take it you'd like me to apply patch 1 directly to net? Or do you prefer to take it into mptcp tree first?
Hi Jakub, 09 Nov 2020 21:57:05 Jakub Kicinski <kuba@kernel.org>: > On Mon, 9 Nov 2020 17:28:54 +0100 Matthieu Baerts wrote: >> A small detail (I think): the Signed-off-by of the sender (Geliang) >> should be the last one in the list if I am not mistaken. >> But I guess this is not blocking. >> >> Reviewed-by: Matthieu Baerts <matthieu.baerts@tessares.net> > > I take it you'd like me to apply patch 1 directly to net? Sorry, I didn't know it was OK to apply only one patch of the series. Then yes, if you don't mind, please apply this patch :) Cheers, Matt Tessares | Belgium | Hybrid Access Solutions www.tessares.net
On Mon, 9 Nov 2020 21:23:33 +0000 (UTC) Matthieu Baerts wrote: > 09 Nov 2020 21:57:05 Jakub Kicinski <kuba@kernel.org>: > > On Mon, 9 Nov 2020 17:28:54 +0100 Matthieu Baerts wrote: > >> A small detail (I think): the Signed-off-by of the sender (Geliang) > >> should be the last one in the list if I am not mistaken. > >> But I guess this is not blocking. > >> > >> Reviewed-by: Matthieu Baerts <matthieu.baerts@tessares.net> > > > > I take it you'd like me to apply patch 1 directly to net? > > Sorry, I didn't know it was OK to apply only one patch of the series. > Then yes, if you don't mind, please apply this patch :) Not really, I was just establishing ownership ;) Geliang Tang, please rebase on net and repost just the first patch. It does not apply to net as is.
Hi Jakub, Matt, Jakub Kicinski <kuba@kernel.org> 于2020年11月10日周二 上午6:20写道： > > On Mon, 9 Nov 2020 21:23:33 +0000 (UTC) Matthieu Baerts wrote: > > 09 Nov 2020 21:57:05 Jakub Kicinski <kuba@kernel.org>: > > > On Mon, 9 Nov 2020 17:28:54 +0100 Matthieu Baerts wrote: > > >> A small detail (I think): the Signed-off-by of the sender (Geliang) > > >> should be the last one in the list if I am not mistaken. > > >> But I guess this is not blocking. > > >> > > >> Reviewed-by: Matthieu Baerts <matthieu.baerts@tessares.net> > > > > > > I take it you'd like me to apply patch 1 directly to net? > > > > Sorry, I didn't know it was OK to apply only one patch of the series. > > Then yes, if you don't mind, please apply this patch :) > > Not really, I was just establishing ownership ;) > > Geliang Tang, please rebase on net and repost just the first patch. > It does not apply to net as is. v2 of this patch had been sent out. http://patchwork.ozlabs.org/project/netdev/patch/078a2ef5bdc4e3b2c25ef852461692001f426495.1604976945.git.geliangtang@gmail.com/ This patch should be applied to net-next, not -net. Since commit "mptcp: add a new sysctl add_addr_timeout" is not applied to -net yet. -Geliang
diff --git a/net/mptcp/pm_netlink.c b/net/mptcp/pm_netlink.c index 6180a8b39a3f..03f2c28f11f5 100644 --- a/net/mptcp/pm_netlink.c +++ b/net/mptcp/pm_netlink.c @@ -206,7 +206,6 @@ static void mptcp_pm_add_timer(struct timer_list *timer) struct mptcp_pm_add_entry *entry = from_timer(entry, timer, add_timer); struct mptcp_sock *msk = entry->sock; struct sock *sk = (struct sock *)msk; - struct net *net = sock_net(sk); pr_debug("msk=%p", msk); @@ -235,7 +234,7 @@ static void mptcp_pm_add_timer(struct timer_list *timer) if (entry->retrans_times < ADD_ADDR_RETRANS_MAX) sk_reset_timer(sk, timer, - jiffies + mptcp_get_add_addr_timeout(net)); + jiffies + mptcp_get_add_addr_timeout(sock_net(sk))); spin_unlock_bh(&msk->pm.lock);
Fix the following Smatch complaint: net/mptcp/pm_netlink.c:213 mptcp_pm_add_timer() warn: variable dereferenced before check 'msk' (see line 208) net/mptcp/pm_netlink.c 207 struct mptcp_sock *msk = entry->sock; 208 struct sock *sk = (struct sock *)msk; 209 struct net *net = sock_net(sk); ^^ "msk" dereferenced here. 210 211 pr_debug("msk=%p", msk); 212 213 if (!msk) ^^^^ Too late. 214 return; 215 Fixes: 93f323b9cccc ("mptcp: add a new sysctl add_addr_timeout") Reported-by: Dan Carpenter <dan.carpenter@oracle.com> Signed-off-by: Geliang Tang <geliangtang@gmail.com> Reviewed-by: Dan Carpenter <dan.carpenter@oracle.com> --- net/mptcp/pm_netlink.c | 3 +-- 1 file changed, 1 insertion(+), 2 deletions(-)