From: "Paul E. McKenney" <[email protected]>
To: Dan Carpenter <[email protected]>
Cc: [email protected], [email protected],
[email protected],
Ammar Faizi <[email protected]>,
GNU/Weeb Mailing List <[email protected]>
Subject: Re: [ammarfaizi2-block:paulmck/linux-rcu/dev.2023.01.19a 55/61] kernel/rcu/rcutorture.c:3548 rcu_torture_init_srcu_lockdep() warn: for statement not indented
Date: Wed, 25 Jan 2023 06:56:55 -0800 [thread overview]
Message-ID: <20230125145655.GF2948950@paulmck-ThinkPad-P17-Gen-1> (raw)
In-Reply-To: <Y9DpFTItKK8NkFR0@kadam>
On Wed, Jan 25, 2023 at 11:32:21AM +0300, Dan Carpenter wrote:
> On Wed, Jan 25, 2023 at 11:10:58AM +0300, Dan Carpenter wrote:
> > drivers/net/wireless/realtek/rtl8xxxu/rtl8xxxu_8188f.c:1265 rtl8188fu_phy_iq_calibrate() warn: re-using outside iterator: 'i'
> > drivers/net/wireless/realtek/rtl8xxxu/rtl8xxxu_8723b.c:1168 rtl8723bu_phy_iq_calibrate() warn: re-using outside iterator: 'i'
> > drivers/net/wireless/realtek/rtl8xxxu/rtl8xxxu_core.c:3298 rtl8xxxu_gen1_phy_iq_calibrate() warn: re-using outside iterator: 'i'
> > drivers/net/wireless/realtek/rtlwifi/rtl8188ee/phy.c:1989 rtl88e_phy_iq_calibrate() warn: re-using outside iterator: 'i'
> > drivers/net/wireless/realtek/rtlwifi/rtl8192c/phy_common.c:1429 rtl92c_phy_iq_calibrate() warn: re-using outside iterator: 'i'
> > drivers/net/wireless/realtek/rtlwifi/rtl8192de/phy.c:2294 rtl92d_phy_iq_calibrate() warn: re-using outside iterator: 'i'
> > drivers/net/wireless/realtek/rtlwifi/rtl8723ae/phy.c:1393 rtl8723e_phy_iq_calibrate() warn: re-using outside iterator: 'i'
> > drivers/net/wireless/realtek/rtlwifi/rtl8723be/phy.c:2321 rtl8723be_phy_iq_calibrate() warn: re-using outside iterator: 'i'
>
> These are all "false positives" (kind of). It's 8 copies of code which
> does:
>
> for (i = 0; i < 3; i++) {
> ...
> if (i == 2) {
> for (i = 0; i < 8; i++)
> foo = bar[i];
> }
> }
>
> So the loop exits with i == 8 instead of i == 3 but that doesn't matter.
> Ugh... Did the original author do this deliberately or did it just work
> by chance? I really prefer buggy code to code to ugly code. With buggy
> code it's a technical matter and easy to fix, but with ugly code that's
> like a big debate and a social problem...
>
> On the other hand, in this case, I don't think anyone is going to defend
> the original style from these drivers so I may as well patch it.
Looks suspicious to me! ;-)
Thanx, Paul
next prev parent reply other threads:[~2023-01-25 14:56 UTC|newest]
Thread overview: 7+ messages / expand[flat|nested] mbox.gz Atom feed top
2023-01-24 9:32 [ammarfaizi2-block:paulmck/linux-rcu/dev.2023.01.19a 55/61] kernel/rcu/rcutorture.c:3548 rcu_torture_init_srcu_lockdep() warn: for statement not indented Dan Carpenter
2023-01-24 10:05 ` Dan Carpenter
2023-01-25 8:10 ` Dan Carpenter
2023-01-25 8:32 ` Dan Carpenter
2023-01-25 8:45 ` Ammar Faizi
2023-01-25 14:56 ` Paul E. McKenney [this message]
2023-01-24 14:51 ` Paul E. McKenney
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