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* sparse warnings in vop
@ 2020-08-02  4:57 Michael S. Tsirkin
       [not found] ` <CAHp75Vfwhfrse47jRR9msFHA4ZqoVvE8RYHZNKxu-_ZiGyS9Sw@mail.gmail.com>
  0 siblings, 1 reply; 3+ messages in thread
From: Michael S. Tsirkin @ 2020-08-02  4:57 UTC (permalink / raw)
  To: sudeep.dutt; +Cc: ashutosh.dixit, arnd, gregkh, linux-kernel

Hi!
Building vop with make C=1 produces the following:

CHECK   drivers/misc/mic/vop/vop_main.c
drivers/misc/mic/vop/vop_main.c:551:58: warning: incorrect type in argument 1 (different address spaces)
drivers/misc/mic/vop/vop_main.c:551:58:    expected void const volatile [noderef] __iomem *addr
drivers/misc/mic/vop/vop_main.c:551:58:    got restricted __le64 *
drivers/misc/mic/vop/vop_main.c:560:49: warning: incorrect type in argument 1 (different address spaces)
drivers/misc/mic/vop/vop_main.c:560:49:    expected struct mic_device_ctrl *dc
drivers/misc/mic/vop/vop_main.c:560:49:    got struct mic_device_ctrl [noderef] __iomem *dc
drivers/misc/mic/vop/vop_main.c:579:49: warning: incorrect type in argument 1 (different address spaces)
drivers/misc/mic/vop/vop_main.c:579:49:    expected struct mic_device_ctrl *dc
drivers/misc/mic/vop/vop_main.c:579:49:    got struct mic_device_ctrl [noderef] __iomem *dc

Would be nice to fix to silence the noise, but I'm not 100% sure
what the right thing to do here is. Tag struct members with __iomem or
cast with __force on use?

-- 
MST


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2020-08-02  4:57 sparse warnings in vop Michael S. Tsirkin
     [not found] ` <CAHp75Vfwhfrse47jRR9msFHA4ZqoVvE8RYHZNKxu-_ZiGyS9Sw@mail.gmail.com>
2020-08-02 10:48   ` Arnd Bergmann
2020-08-02 23:31     ` Dixit, Ashutosh

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