Messages in this thread | | | Date | Wed, 11 Jun 2003 07:20:45 -0400 (EDT) | From | "Richard B. Johnson" <> | Subject | Re: Compiling kernel with SuSE 8.2/gcc 3.3 |
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On Wed, 11 Jun 2003, Steve French wrote:
> Stephan von Krawczynski <skraw@ithnet.com> writes: > > > during tests with latest SuSE distro 8.2 compiling 2.4.21-pre6 showed a lot of > > "comparison between signed and unsigned" warnings. It looks like SuSE ships gcc > > I also noticed lots of compiler warnings with gcc 3.3, now default in SuSE, > and cleaned up most of them for the cifs vfs but there are a few that just > look wrong for gcc to spit out warnings on. For example the following > local variable definition and the similar ones in the same file > (fs/cifs/inode.c): > > __u64 uid = 0xFFFFFFFFFFFFFFFF; > > generates a warning saying the value is too long for a long on > x86 SuSE 8.2 with gcc 3.3 - which makes no sense. Any value > above 0xFFFFFFFFF generates the same warning (intuitively > 36 bits should fit in an unsigned 64 bit local variable). [SNIPPED...]
I think the compiler doesn't have a default type for something that long. Therefore you have to define is as:
__u64 uid = 0xFFFFFFFFFFFFFFFFULL;
Seems dumb, but it even works.
Cheers, Dick Johnson Penguin : Linux version 2.4.20 on an i686 machine (797.90 BogoMips). Why is the government concerned about the lunatic fringe? Think about it.
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