[lkml]   [2005]   [Nov]   [23]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
Messages in this thread
    SubjectRe: [NET]: Shut up warnings in net/core/flow.c
    On Wed, 2005-11-23 at 13:24 -0800, David S. Miller wrote:
    > From: Arjan van de Ven <>
    > Date: Wed, 23 Nov 2005 10:11:24 +0100
    > > it can.. but only if we start using -ffunction-sections in the CFLAGS
    > > (or make all of these functions static I suppose and reenable
    > > -funit-at-a-time, which can be done for gcc 4.x only)
    > I actually just scanned the tree, and outside of files that
    > only get built on CONFIG_SMP (namely, arch/${ARCH}/kernel/smp{,boot}.c)
    > the IPI functions were %99 marked static already and the remaining
    > %1 should be marked static. The cases in that %1 group are:

    static is good anyway :)

    > arch/mips/sibyte/sb1250/prom.c:prom_cpu0_exit()
    > arch/powerpc/kernel/machine_kexec_64.c:kexec_smp_down()
    > And as stated, those two can just be marked static right now.
    > So we could very easily remove the CONFIG_SMP ifdefs, but the
    > -funit-at-a-time requirement to get gcc to not emit unused static
    > functions is very unfortunate.

    I'm no gcc expert but afaik this really needs unit-at-a-time. (someone
    who knows more about gcc please correct me if I'm wrong).

    On the good news side:
    -f-unit-at-a-time can be enabled for gcc 4.x; the stack bug that caused
    it to be disabled is fixed in gcc 4.x

    and .. -ffunction-sections may well be a good thing anyway; that works
    even for non-statics.
    (but iirc it needs some linker script changes because sections change

    To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
    the body of a message to
    More majordomo info at
    Please read the FAQ at

     \ /
      Last update: 2005-11-23 22:31    [W:0.036 / U:61.528 seconds]
    ©2003-2016 Jasper Spaans. hosted at Digital OceanAdvertise on this site