Messages in this thread | | | Date | Tue, 14 Mar 2006 18:55:55 -0500 | From | "Jun'ichi Nomura" <> | Subject | Re: [PATCH] (-mm) drivers/pci/msi: explicit declaration of msi_register |
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Adrian Bunk wrote: >>include2/asm/msi.h: In function `ia64_msi_init': >>include2/asm/msi.h:23: warning: implicit declaration of function `msi_register' >>In file included from include2/asm/machvec.h:408, >> from include2/asm/io.h:70, >> from include2/asm/smp.h:20, >> from /build/rc6/source/include/linux/smp.h:22, >>... > > To avoid any wrong impression: > > This kind of warnings isn't harmless. > > gcc tries to guess the prototype of the function, and if gcc guessed > wrong this can cause nasty and hard to debug runtime errors.
Sure. But for this case, gcc emits the above warning for any files which includes, for example, include/linux/smp.h on ia64. So while the warning is harmless, it may cause other harmful warnings being overlooked.
Thanks, -- Jun'ichi Nomura, NEC Solutions (America), Inc. - To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.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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