The patch titled #error for gcc 4.1.{0,1} has been removed from the -mm tree. Its filename was error-for-gcc-4101.patch This patch was dropped because an alternative patch was merged The current -mm tree may be found at http://userweb.kernel.org/~akpm/mmotm/ ------------------------------------------------------ Subject: #error for gcc 4.1.{0,1} From: Adrian Bunk <bunk@xxxxxxxxxx> gcc 4.1.0 and 4.1.1 are known to miscompile the kernel: http://gcc.gnu.org/bugzilla/show_bug.cgi?id=27781 Usage of weak functions has become a common pattern in the kernel, and usages get added in each kernel version increasing the probability of bugs with each kernel release. This miscompilation of weak functions can result in subtle runtime errors. #error for gcc 4.1.0 and 4.1.1 to prevent users from running into this bug. Note: We already printed a #warning for gcc 4.1.0 due to a different bug. Signed-off-by: Adrian Bunk <bunk@xxxxxxxxxx> Cc: Roland Dreier <rdreier@xxxxxxxxx> Cc: Ingo Molnar <mingo@xxxxxxx> Cc: Ian Campbell <ian.campbell@xxxxxxxxxx> Cc: Jeremy Fitzhardinge <jeremy.fitzhardinge@xxxxxxxxxx> Cc: Helge Deller <deller@xxxxxx> Cc: Rusty Russell <rusty@xxxxxxxxxxxxxxx> Cc: Kyle McMartin <kyle@xxxxxxxxxxx> Cc: Randolph Chung <randolph@xxxxxxxxx> Cc: Sam Ravnborg <sam@xxxxxxxxxxxx> Cc: John David Anglin <dave@xxxxxxxxxxxxxxxxxx> Cc: Linus Torvalds <torvalds@xxxxxxxxxxxxxxxxxxxx> Signed-off-by: Andrew Morton <akpm@xxxxxxxxxxxxxxxxxxxx> --- init/main.c | 5 +++-- 1 file changed, 3 insertions(+), 2 deletions(-) diff -puN init/main.c~error-for-gcc-4101 init/main.c --- a/init/main.c~error-for-gcc-4101 +++ a/init/main.c @@ -81,8 +81,9 @@ * trouble. */ -#if __GNUC__ == 4 && __GNUC_MINOR__ == 1 && __GNUC_PATCHLEVEL__ == 0 -#warning gcc-4.1.0 is known to miscompile the kernel. A different compiler version is recommended. +/* due to http://gcc.gnu.org/bugzilla/show_bug.cgi?id=27781 */ +#if __GNUC__ == 4 && __GNUC_MINOR__ == 1 && (__GNUC_PATCHLEVEL__ == 0 || __GNUC_PATCHLEVEL__ == 1) +#error gcc 4.1.0 and 4.1.1 are known to miscompile the kernel. #endif static int kernel_init(void *); _ Patches currently in -mm which might be from bunk@xxxxxxxxxx are origin.patch linux-next.patch m32r-kernel-smpbootc-must-include-linux-cpuh.patch if-0-ses_match_host.patch drivers-scsi-a2091c-make-2-functions-static.patch drivers-scsi-a3000c-make-2-functions-static.patch m68knommu-set-no_dma.patch error-for-gcc-4101.patch reiser4.patch -- To unsubscribe from this list: send the line "unsubscribe mm-commits" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html