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Message-ID: <ADE657CA350FB648AAC2C43247A983F002069887E116@AUSP01VMBX24.collaborationhost.net> Date: Fri, 20 Apr 2012 19:46:14 -0500 From: H Hartley Sweeten <hartleys@...ionengravers.com> To: Andrew Morton <akpm@...ux-foundation.org> CC: Linux Kernel <linux-kernel@...r.kernel.org> Subject: RE: [RFC PATCH 0/2] init: make sure syscall arguments are marked __user where needed On Friday, April 20, 2012 5:43 PM, Andrew Morton wrote: > On Fri, 20 Apr 2012 19:05:46 -0500 H Hartley Sweeten wrote: > >>> Can we just make "make C=1" skip that file or something? >> >> What about putting something like this at the top of the files: >> >> >> /* >> * Many of the syscalls used in this file expect some of the arguments >> * to be __user pointers not __kernel pointers. To limit the sparse >> * noise, turn off sparse checking for this file. >> */ >> #ifdef __CHECKER__ >> #undef __CHECKER__ >> #warning "Sparse checking disabled for this file" >> #endif >> >> >> Maybe without the warning if it doesn't seem necessary. >> >> This keeps <linux/compiler.h> from defining the __attribute__* checks. > > That looks nice and explicit. Another option would be to just undef the __user and __kernel checks. That way the other sparse checks should still work. I'll post an updated patch with the #undef __CHECKER__ method shortly. Regards, Hartley -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@...r.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
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