* [rcu:rcu/next 48/97] drivers/firmware/tegra/ivc.c:154:39: error: lvalue required as left operand of assignment
@ 2017-10-07 4:47 kbuild test robot
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From: kbuild test robot @ 2017-10-07 4:47 UTC (permalink / raw)
To: Paul E. McKenney; +Cc: kbuild-all, linux-kernel
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tree: https://git.kernel.org/pub/scm/linux/kernel/git/paulmck/linux-rcu.git rcu/next
head: bd76953f4e7b0b1f66b3fe631106fcc4c85a380c
commit: 669f98e232aa6f77bd602e2826dd55c3694109e5 [48/97] drivers/firmware/tegra: Convert ACCESS_ONCE() to READ_ONCE()
config: arm64-defconfig (attached as .config)
compiler: aarch64-linux-gnu-gcc (Debian 6.1.1-9) 6.1.1 20160705
reproduce:
wget https://raw.githubusercontent.com/intel/lkp-tests/master/sbin/make.cross -O ~/bin/make.cross
chmod +x ~/bin/make.cross
git checkout 669f98e232aa6f77bd602e2826dd55c3694109e5
# save the attached .config to linux build tree
make.cross ARCH=arm64
All errors (new ones prefixed by >>):
drivers/firmware/tegra/ivc.c: In function 'tegra_ivc_advance_tx':
>> drivers/firmware/tegra/ivc.c:154:39: error: lvalue required as left operand of assignment
READ_ONCE(ivc->tx.channel->tx.count) =
^
drivers/firmware/tegra/ivc.c: In function 'tegra_ivc_advance_rx':
drivers/firmware/tegra/ivc.c:165:39: error: lvalue required as left operand of assignment
READ_ONCE(ivc->rx.channel->rx.count) =
^
vim +154 drivers/firmware/tegra/ivc.c
151
152 static inline void tegra_ivc_advance_tx(struct tegra_ivc *ivc)
153 {
> 154 READ_ONCE(ivc->tx.channel->tx.count) =
155 READ_ONCE(ivc->tx.channel->tx.count) + 1;
156
157 if (ivc->tx.position == ivc->num_frames - 1)
158 ivc->tx.position = 0;
159 else
160 ivc->tx.position++;
161 }
162
---
0-DAY kernel test infrastructure Open Source Technology Center
https://lists.01.org/pipermail/kbuild-all Intel Corporation
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