Messages in this thread | | | Date | Mon, 18 Jun 2007 10:57:33 -0700 | From | "H. Peter Anvin" <> | Subject | Re: [patch] use __asm__ and __volatile__ in i386/arm/s390 byteorder.h |
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Robert Hancock wrote: > > If we expect userspace apps to include them, then I would vote for no, > not for anything outside of #ifdef __KERNEL__ in exported headers. Keep > in mind also that C++ apps may need to include these as well and those > extensions don't always play well in C++ mode. (Last instance I ran into > was the ioctl argument checking macros _IOR, _IOW, etc. that create > non-compiling code if you use them in a C++ program.) >
Some of the actual ioctl macros generate silently wrong code if you use them in a C program.
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