linux-kernel - Re: [PATCH] uio_hv_generic: fix type mismatch warnings

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Date:   Wed, 10 Jan 2018 08:57:54 -0800
From:   Stephen Hemminger <stephen@...workplumber.org>
To:     Arnd Bergmann <arnd@...db.de>
Cc:     "K. Y. Srinivasan" <kys@...rosoft.com>,
        Haiyang Zhang <haiyangz@...rosoft.com>,
        Stephen Hemminger <sthemmin@...rosoft.com>,
        Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
        devel@...uxdriverproject.org, linux-kernel@...r.kernel.org
Subject: Re: [PATCH] uio_hv_generic: fix type mismatch warnings

On Wed, 10 Jan 2018 17:42:38 +0100
Arnd Bergmann <arnd@...db.de> wrote:

> I moved the virt_to_phys() conversion into hv_uio_probe() as part of
> a warning fix. Stephen's cleanup to remove the private mmap() function
> seems reasonable, but part of it reverted the change that I did to
> hide the warnings, so they are back now:
> 
> drivers/uio/uio_hv_generic.c: In function 'hv_uio_probe':
> drivers/uio/uio_hv_generic.c:123:5: error: cast from pointer to integer of different size [-Werror=pointer-to-int-cast]
> drivers/uio/uio_hv_generic.c:130:5: error: cast from pointer to integer of different size [-Werror=pointer-to-int-cast]
> drivers/uio/uio_hv_generic.c:136:5: error: cast from pointer to integer of different size [-Werror=pointer-to-int-cast]
> 
> The type mismatch is now the result of the uio_mmap() definition, and
> the best way I see from here is to shut them up with a uintptr_t cast.
> 
> Fixes: 9c40546c012c ("uio_hv_generic: use standard mmap for resources")
> Signed-off-by: Arnd Bergmann <arnd@...db.de>

Thanks. Not sure why I don't see these.

Signed-off-by: Stephen Hemminger <sthemmin@...rosoft.com>