From: Xie He <xie.he.0141@gmail.com>
To: Arnd Bergmann <arnd@kernel.org>
Cc: Xie He <xie.he.0141@gmail.com>, Chas Williams <3chas3@gmail.com>,
Arnd Bergmann <arnd@arndb.de>,
Nathan Chancellor <natechancellor@gmail.com>,
Nick Desaulniers <ndesaulniers@google.com>,
"David S. Miller" <davem@davemloft.net>,
linux-atm-general@lists.sourceforge.net, netdev@vger.kernel.org,
linux-kernel@vger.kernel.org, clang-built-linux@googlegroups.com
Subject: Re: [PATCH net-next 01/11] atm: horizon: shut up clang null pointer arithmetic warning
Date: Mon, 26 Oct 2020 20:55:58 -0700 [thread overview]
Message-ID: <20201027035558.16864-1-xie.he.0141@gmail.com> (raw)
In-Reply-To: <20201026213040.3889546-1-arnd@kernel.org>
> - for (mem = (HDW *) memmap; mem < (HDW *) (memmap + 1); ++mem)
> + for (mem = (HDW *) memmap; mem < (HDW *) ((uintptr_t)memmap + 1); ++mem)
Note that these two lines are semantically different. In the first line,
"+ 1" moves the pointer by (sizeof memmap) bytes. However in the second
line, "+ 1" moves the pointer by only 1 byte.
This driver is old, but let's still keep its code correct!
next prev parent reply other threads:[~2020-10-27 3:56 UTC|newest]
Thread overview: 31+ messages / expand[flat|nested] mbox.gz Atom feed top
2020-10-26 21:29 [PATCH net-next 01/11] atm: horizon: shut up clang null pointer arithmetic warning Arnd Bergmann
2020-10-26 21:29 ` [PATCH net-next 02/11] net: hostap: fix function cast warning Arnd Bergmann
2020-11-07 11:37 ` Kalle Valo
2020-10-26 21:29 ` [PATCH net-next 04/11] wimax: fix duplicate initializer warning Arnd Bergmann
2020-10-27 7:22 ` Johannes Berg
2020-10-27 11:51 ` Arnd Bergmann
2020-10-27 14:51 ` Perez-Gonzalez, Inaky
2020-10-26 21:29 ` [PATCH net-next 05/11] wimax/i2400m/control: fix enum warning Arnd Bergmann
2020-10-26 21:29 ` [PATCH net-next 06/11] rtlwifi: fix -Wpointer-sign warning Arnd Bergmann
2020-10-27 1:29 ` Pkshih
2020-10-26 21:29 ` [PATCH net-next 07/11] rtw88: remove extraneous 'const' qualifier Arnd Bergmann
2020-10-27 1:49 ` Nathan Chancellor
2020-10-26 21:29 ` [PATCH net-next 08/11] ath9k: work around false-positive gcc warning Arnd Bergmann
2020-11-02 16:26 ` Kalle Valo
2020-11-02 17:59 ` Johannes Berg
2020-11-02 22:29 ` Arnd Bergmann
2020-11-07 11:18 ` Kalle Valo
2020-11-07 11:36 ` Arnd Bergmann
2020-11-10 18:13 ` Kalle Valo
2020-10-26 21:29 ` [PATCH net-next 09/11] ath6kl: fix enum-conversion warning Arnd Bergmann
2020-10-27 6:15 ` Kalle Valo
2020-11-07 8:08 ` Kalle Valo
2020-10-26 21:29 ` [PATCH net-next 10/11] ch_ktls: " Arnd Bergmann
2020-10-26 21:42 ` Andrew Lunn
2020-10-26 21:29 ` [PATCH net-next 11/11] ipv6: fix type mismatch warning Arnd Bergmann
2020-10-27 3:55 ` Xie He [this message]
2020-10-27 4:02 ` [PATCH net-next 01/11] atm: horizon: shut up clang null pointer arithmetic warning Xie He
2020-10-27 13:23 ` Arnd Bergmann
2020-10-27 21:46 ` Xie He
2020-10-28 0:42 ` Jakub Kicinski
2020-10-28 8:35 ` Arnd Bergmann
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