Messages in this thread | | | Date | Fri, 10 Feb 2017 15:58:32 +0100 | From | Greg KH <> | Subject | Re: [PATCH] staging: r8712u: remove unnecessary le32_to_cpu |
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On Fri, Feb 10, 2017 at 08:52:12AM -0600, Larry Finger wrote: > On 02/10/2017 08:08 AM, Greg KH wrote: > > On Thu, Feb 09, 2017 at 08:51:55PM -0700, Perry Hooker wrote: > > > This patch fixes the following sparse warning: > > > drivers/staging/rtl8712/usb_ops_linux.c:212:33: warning: cast to restricted __le32 > > > > > > Signed-off-by: Perry Hooker <perry.hooker@gmail.com> > > > --- > > > drivers/staging/rtl8712/usb_ops_linux.c | 2 +- > > > 1 file changed, 1 insertion(+), 1 deletion(-) > > > > Does not apply to my tree :( > > That is good. Yes the patch silenced the Sparse warning, but it would BREAK > the driver on every big-endian machine. Variable pbuf is a pointer to a > string of bytes *in little-endian order* that is to be converted into a > cpu-ordered 32-bit quantity. The correct way to silence the warning is to > make sure the compiler understands what *(pbuf + 1) really is. > > BTW, that driver has been tested on BE hardware. Please be careful about > endian changes. > > NACK.
Care to comment this somehow so that I don't accidentally take a patch for this in the future?
thanks,
greg k-h
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