2012/2/21 Toralf Förster toralf.foerster@gmx.de:
Hello,
the build of latest git (.config attached) failed, make ends with : ... CC [M] drivers/gpu/drm/radeon/radeon_cp.o CC [M] drivers/gpu/drm/radeon/radeon_state.o In file included from /home/tfoerste/devel/linux/arch/x86/include/asm/uaccess.h:573:0, from include/drm/drmP.h:64, from drivers/gpu/drm/radeon/radeon_state.c:30: In function 'copy_from_user', inlined from 'radeon_cp_clear' at drivers/gpu/drm/radeon/radeon_state.c:2171:6: /home/tfoerste/devel/linux/arch/x86/include/asm/uaccess_32.h:211:26: error: call to 'copy_from_user_overflow' declared with attribute error: copy_from_user() buffer size is not provably correct make[4]: *** [drivers/gpu/drm/radeon/radeon_state.o] Error 1 make[3]: *** [drivers/gpu/drm/radeon] Error 2 make[2]: *** [drivers/gpu/drm] Error 2 make[1]: *** [drivers/gpu] Error 2 make: *** [drivers] Error 2
turn off CONFIG_DEBUG_STRICT_USER_COPY_CHECKS
Its a bug in gcc's checks code.
Dave.