Messages in this thread Patch in this message | | | Subject | [PATCH 7/7] asm-generic: suppress sparse warning in ioctl.h | From | Harvey Harrison <> | Date | Wed, 02 Apr 2008 17:33:38 -0700 |
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1 ? 0 : x
is not valid in contexts where C requires integer constant expressions. Index in static array initializer is one of those.
Instead of using a non-existant extern function, use 1/0 as the guard expression to avoid using a gcc-ism. IOC_TYPECHECK gets pulled into some static array initializations where this is not valid.
Signed-off-by: Harvey Harrison <harvey.harrison@gmail.com> --- include/asm-generic/ioctl.h | 4 +--- 1 files changed, 1 insertions(+), 3 deletions(-)
diff --git a/include/asm-generic/ioctl.h b/include/asm-generic/ioctl.h index cd02729..f5ae529 100644 --- a/include/asm-generic/ioctl.h +++ b/include/asm-generic/ioctl.h @@ -47,12 +47,10 @@ ((nr) << _IOC_NRSHIFT) | \ ((size) << _IOC_SIZESHIFT)) -/* provoke compile error for invalid uses of size argument */ -extern unsigned int __invalid_size_argument_for_IOC; #define _IOC_TYPECHECK(t) \ ((sizeof(t) == sizeof(t[1]) && \ sizeof(t) < (1 << _IOC_SIZEBITS)) ? \ - sizeof(t) : __invalid_size_argument_for_IOC) + sizeof(t) : 1/0) /* used to create numbers */ #define _IO(type,nr) _IOC(_IOC_NONE,(type),(nr),0) -- 1.5.5.rc1.135.g8527
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