On Mon, Jun 27, 2011 at 10:12:57PM -0700, David Miller wrote: > commit 948252cb9e01d65a89ecadf67be5018351eee15e > Author: David S. Miller <davem@xxxxxxxxxxxxx> > Date: Tue May 31 19:27:48 2011 -0700 > > Revert "net: fix section mismatches" > > This reverts commit e5cb966c0838e4da43a3b0751bdcac7fe719f7b4. > > It causes new build regressions with gcc-4.2 which is > pretty common on non-x86 platforms. > > Reported-by: James Bottomley <James.Bottomley@xxxxxxxxxxxxxxxxxxxxx> > Signed-off-by: David S. Miller <davem@xxxxxxxxxxxxx> > > and postings that led to this revert including: > > http://marc.info/?l=linux-netdev&m=130653748205263&w=2 Thanks for the pointers; I looked into it a bit deeper and found that the construct which hppa64-linux-gcc 4.2.4 doesn't like is the combination of const and __devinitconst __devinitdata. My patches are minimalistic and don't do any constification and seem to work fine for PA-RISC. A possible alternative to allow the use of Michał's reverted patch would be to conditionalize the definition of __devinitconst. There is no user of __devexitconst so I left that unchanged. Ralf Signed-off-by: Ralf Baechle <ralf@xxxxxxxxxxxxxx> include/linux/init.h | 8 ++++++++ 1 files changed, 8 insertions(+), 0 deletions(-) diff --git a/include/linux/init.h b/include/linux/init.h index 577671c..e12fd85 100644 --- a/include/linux/init.h +++ b/include/linux/init.h @@ -84,7 +84,15 @@ /* Used for HOTPLUG */ #define __devinit __section(.devinit.text) __cold #define __devinitdata __section(.devinit.data) +#if defined __GNUC__ && (__GNUC__ == 4) && (__GNUC_MINOR__ == 2) +/* + * GCC 4.2 will sometimes throw an error if the combination of const and + * __devinitconst is being used. As a workaround make __devinitconst a noop + */ +#define __devinitconst +#else #define __devinitconst __section(.devinit.rodata) +#endif #define __devexit __section(.devexit.text) __exitused __cold #define __devexitdata __section(.devexit.data) #define __devexitconst __section(.devexit.rodata)
