* [PATCH] net: forcedeth: Give bot handlers a helping hand understanding the code @ 2021-05-11 12:43 Andrew Lunn 2021-05-11 13:48 ` Leizhen (ThunderTown) 0 siblings, 1 reply; 3+ messages in thread From: Andrew Lunn @ 2021-05-11 12:43 UTC (permalink / raw) To: Jakub Kicinski; +Cc: netdev, thunder.leizhen, Andrew Lunn Bots handlers repeatedly fail to understand nv_update_linkspeed() and submit patches unoptimizing it for the human reader. Add a comment to try to prevent this in the future. Signed-off-by: Andrew Lunn <andrew@lunn.ch> --- drivers/net/ethernet/nvidia/forcedeth.c | 3 +++ 1 file changed, 3 insertions(+) diff --git a/drivers/net/ethernet/nvidia/forcedeth.c b/drivers/net/ethernet/nvidia/forcedeth.c index 8724d6a9ed02..0822b28f3b6a 100644 --- a/drivers/net/ethernet/nvidia/forcedeth.c +++ b/drivers/net/ethernet/nvidia/forcedeth.c @@ -3475,6 +3475,9 @@ static int nv_update_linkspeed(struct net_device *dev) newls = NVREG_LINKSPEED_FORCE|NVREG_LINKSPEED_10; newdup = 0; } else { + /* Default to the same as 10/Half if we cannot + * determine anything else. + */ newls = NVREG_LINKSPEED_FORCE|NVREG_LINKSPEED_10; newdup = 0; } -- 2.31.1 ^ permalink raw reply related [flat|nested] 3+ messages in thread
* Re: [PATCH] net: forcedeth: Give bot handlers a helping hand understanding the code 2021-05-11 12:43 [PATCH] net: forcedeth: Give bot handlers a helping hand understanding the code Andrew Lunn @ 2021-05-11 13:48 ` Leizhen (ThunderTown) 2021-05-12 1:22 ` Andrew Lunn 0 siblings, 1 reply; 3+ messages in thread From: Leizhen (ThunderTown) @ 2021-05-11 13:48 UTC (permalink / raw) To: Andrew Lunn, Jakub Kicinski; +Cc: netdev On 2021/5/11 20:43, Andrew Lunn wrote: > Bots handlers repeatedly fail to understand nv_update_linkspeed() and > submit patches unoptimizing it for the human reader. Add a comment to > try to prevent this in the future. > > Signed-off-by: Andrew Lunn <andrew@lunn.ch> > --- > drivers/net/ethernet/nvidia/forcedeth.c | 3 +++ > 1 file changed, 3 insertions(+) > > diff --git a/drivers/net/ethernet/nvidia/forcedeth.c b/drivers/net/ethernet/nvidia/forcedeth.c > index 8724d6a9ed02..0822b28f3b6a 100644 > --- a/drivers/net/ethernet/nvidia/forcedeth.c > +++ b/drivers/net/ethernet/nvidia/forcedeth.c > @@ -3475,6 +3475,9 @@ static int nv_update_linkspeed(struct net_device *dev) > newls = NVREG_LINKSPEED_FORCE|NVREG_LINKSPEED_10; > newdup = 0; > } else { > + /* Default to the same as 10/Half if we cannot > + * determine anything else. > + */ I think it would be better to remove the if branch above and then add comments here. Otherwise, it becomes more and more redundant. > newls = NVREG_LINKSPEED_FORCE|NVREG_LINKSPEED_10; > newdup = 0; > } > ^ permalink raw reply [flat|nested] 3+ messages in thread
* Re: [PATCH] net: forcedeth: Give bot handlers a helping hand understanding the code 2021-05-11 13:48 ` Leizhen (ThunderTown) @ 2021-05-12 1:22 ` Andrew Lunn 0 siblings, 0 replies; 3+ messages in thread From: Andrew Lunn @ 2021-05-12 1:22 UTC (permalink / raw) To: Leizhen (ThunderTown); +Cc: Jakub Kicinski, netdev On Tue, May 11, 2021 at 09:48:11PM +0800, Leizhen (ThunderTown) wrote: > > > On 2021/5/11 20:43, Andrew Lunn wrote: > > Bots handlers repeatedly fail to understand nv_update_linkspeed() and > > submit patches unoptimizing it for the human reader. Add a comment to > > try to prevent this in the future. > > > > Signed-off-by: Andrew Lunn <andrew@lunn.ch> > > --- > > drivers/net/ethernet/nvidia/forcedeth.c | 3 +++ > > 1 file changed, 3 insertions(+) > > > > diff --git a/drivers/net/ethernet/nvidia/forcedeth.c b/drivers/net/ethernet/nvidia/forcedeth.c > > index 8724d6a9ed02..0822b28f3b6a 100644 > > --- a/drivers/net/ethernet/nvidia/forcedeth.c > > +++ b/drivers/net/ethernet/nvidia/forcedeth.c > > @@ -3475,6 +3475,9 @@ static int nv_update_linkspeed(struct net_device *dev) > > newls = NVREG_LINKSPEED_FORCE|NVREG_LINKSPEED_10; > > newdup = 0; > > } else { > > + /* Default to the same as 10/Half if we cannot > > + * determine anything else. > > + */ > I think it would be better to remove the if branch above and then add comments here. > Otherwise, it becomes more and more redundant. I kind of agree with you. However, we have seen at least four times, that bots and their master are incapable of understanding this code and try to unoptimize its readabilty/understandability. So we need to add redundancy so hopefully the masters of these bots will understand this code, see that it is correct, and leave it alone. The other option is to work on the bot. Look at all the cases it got it wrong, the code is in fact correct, but the bot could not see why. Figure out the common pattern for why it got it wrong, and fix the bot. Or we can also add tools to aid the master. We know the bot gets it wrong sometimes. The master also seems to get it wrong, and blindly changes the code without understanding it. The maintainers then reject it. That rejection is logged, it is available in lore. A tool which can search lore for a similar patch which has been rejected before seems like it would be useful for all bots. It would cut down on wasted time of bot masters generating wrong patches and maintainers rejecting them. Andrew ^ permalink raw reply [flat|nested] 3+ messages in thread
end of thread, other threads:[~2021-05-12 1:22 UTC | newest] Thread overview: 3+ messages (download: mbox.gz / follow: Atom feed) -- links below jump to the message on this page -- 2021-05-11 12:43 [PATCH] net: forcedeth: Give bot handlers a helping hand understanding the code Andrew Lunn 2021-05-11 13:48 ` Leizhen (ThunderTown) 2021-05-12 1:22 ` Andrew Lunn
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