On Thu, Jun 06, 2019 at 03:16:03PM +0200, Rolf Eike Beer wrote: > I have at least these 2 instances: > > > In file included from /tmp/e2/build/linux-4.9.180/include/drm/drm_vma_manager.h:28, > from /tmp/e2/build/linux-4.9.180/include/drm/drmP.h:78, > from /tmp/e2/build/linux-4.9.180/include/drm/drm_modeset_helper.h:26, > from /tmp/e2/build/linux-4.9.180/include/drm/drm_atomic_helper.h:33, > from /tmp/e2/build/linux-4.9.180/drivers/gpu/drm/tilcdc/tilcdc_drv.c:24: > /tmp/e2/build/linux-4.9.180/include/linux/module.h:138:7: error: 'cleanup_module' specifies less restrictive attribute than its target 'tilcdc_drm_fini': 'cold' [-Werror=missing-attributes] > 138 | void cleanup_module(void) __attribute__((alias(#exitfn))); > | ^~~~~~~~~~~~~~ > /tmp/e2/build/linux-4.9.180/drivers/gpu/drm/tilcdc/tilcdc_drv.c:757:1: note: in expansion of macro 'module_exit' > 757 | module_exit(tilcdc_drm_fini); > | ^~~~~~~~~~~ > /tmp/e2/build/linux-4.9.180/drivers/gpu/drm/tilcdc/tilcdc_drv.c:748:20: note: 'cleanup_module' target declared here > 748 | static void __exit tilcdc_drm_fini(void) > | ^~~~~~~~~~~~~~~ > In file included from /tmp/e2/build/linux-4.9.180/include/drm/drm_vma_manager.h:28, > from /tmp/e2/build/linux-4.9.180/include/drm/drmP.h:78, > from /tmp/e2/build/linux-4.9.180/include/drm/drm_modeset_helper.h:26, > from /tmp/e2/build/linux-4.9.180/include/drm/drm_atomic_helper.h:33, > from /tmp/e2/build/linux-4.9.180/drivers/gpu/drm/tilcdc/tilcdc_drv.c:24: > /tmp/e2/build/linux-4.9.180/include/linux/module.h:132:6: error: 'init_module' specifies less restrictive attribute than its target 'tilcdc_drm_init': 'cold' [-Werror=missing-attributes] > 132 | int init_module(void) __attribute__((alias(#initfn))); > | ^~~~~~~~~~~ > /tmp/e2/build/linux-4.9.180/drivers/gpu/drm/tilcdc/tilcdc_drv.c:756:1: note: in expansion of macro 'module_init' > 756 | module_init(tilcdc_drm_init); > | ^~~~~~~~~~~ > /tmp/e2/build/linux-4.9.180/drivers/gpu/drm/tilcdc/tilcdc_drv.c:740:19: note: 'init_module' target declared here > 740 | static int __init tilcdc_drm_init(void) > | ^~~~~~~~~~~~~~~ > > > > In file included from /tmp/e2/build/linux-4.9.180/arch/powerpc/platforms/52xx/mpc52xx_lpbfifo.c:17: > /tmp/e2/build/linux-4.9.180/include/linux/module.h:138:7: error: 'cleanup_module' specifies less restrictive attribute than its target 'mpc52xx_lpbfifo_driver_exit': 'cold' [-Werror=missing-attributes] > 138 | void cleanup_module(void) __attribute__((alias(#exitfn))); > | ^~~~~~~~~~~~~~ > /tmp/e2/build/linux-4.9.180/include/linux/device.h:1360:1: note: in expansion of macro 'module_exit' > 1360 | module_exit(__driver##_exit); > | ^~~~~~~~~~~ > /tmp/e2/build/linux-4.9.180/include/linux/platform_device.h:228:2: note: in expansion of macro 'module_driver' > 228 | module_driver(__platform_driver, platform_driver_register, \ > | ^~~~~~~~~~~~~ > /tmp/e2/build/linux-4.9.180/arch/powerpc/platforms/52xx/mpc52xx_lpbfifo.c:581:1: note: in expansion of macro 'module_platform_driver' > 581 | module_platform_driver(mpc52xx_lpbfifo_driver); > | ^~~~~~~~~~~~~~~~~~~~~~ > In file included from /tmp/e2/build/linux-4.9.180/arch/powerpc/include/asm/io.h:27, > from /tmp/e2/build/linux-4.9.180/include/linux/io.h:25, > from /tmp/e2/build/linux-4.9.180/include/linux/irq.h:24, > from /tmp/e2/build/linux-4.9.180/arch/powerpc/include/asm/hardirq.h:5, > from /tmp/e2/build/linux-4.9.180/include/linux/hardirq.h:8, > from /tmp/e2/build/linux-4.9.180/include/linux/interrupt.h:12, > from /tmp/e2/build/linux-4.9.180/arch/powerpc/platforms/52xx/mpc52xx_lpbfifo.c:12: > /tmp/e2/build/linux-4.9.180/arch/powerpc/platforms/52xx/mpc52xx_lpbfifo.c:581:24: note: 'cleanup_module' target declared here > 581 | module_platform_driver(mpc52xx_lpbfifo_driver); > | ^~~~~~~~~~~~~~~~~~~~~~ > /tmp/e2/build/linux-4.9.180/include/linux/device.h:1356:20: note: in definition of macro 'module_driver' > 1356 | static void __exit __driver##_exit(void) \ > | ^~~~~~~~ > /tmp/e2/build/linux-4.9.180/arch/powerpc/platforms/52xx/mpc52xx_lpbfifo.c:581:1: note: in expansion of macro 'module_platform_driver' > 581 | module_platform_driver(mpc52xx_lpbfifo_driver); > | ^~~~~~~~~~~~~~~~~~~~~~ > In file included from /tmp/e2/build/linux-4.9.180/arch/powerpc/platforms/52xx/mpc52xx_lpbfifo.c:17: > /tmp/e2/build/linux-4.9.180/include/linux/module.h:132:6: error: 'init_module' specifies less restrictive attribute than its target 'mpc52xx_lpbfifo_driver_init': 'cold' [-Werror=missing-attributes] > 132 | int init_module(void) __attribute__((alias(#initfn))); > | ^~~~~~~~~~~ > /tmp/e2/build/linux-4.9.180/include/linux/device.h:1355:1: note: in expansion of macro 'module_init' > 1355 | module_init(__driver##_init); \ > | ^~~~~~~~~~~ > /tmp/e2/build/linux-4.9.180/include/linux/platform_device.h:228:2: note: in expansion of macro 'module_driver' > 228 | module_driver(__platform_driver, platform_driver_register, \ > | ^~~~~~~~~~~~~ > /tmp/e2/build/linux-4.9.180/arch/powerpc/platforms/52xx/mpc52xx_lpbfifo.c:581:1: note: in expansion of macro 'module_platform_driver' > 581 | module_platform_driver(mpc52xx_lpbfifo_driver); > | ^~~~~~~~~~~~~~~~~~~~~~ > In file included from /tmp/e2/build/linux-4.9.180/arch/powerpc/include/asm/io.h:27, > from /tmp/e2/build/linux-4.9.180/include/linux/io.h:25, > from /tmp/e2/build/linux-4.9.180/include/linux/irq.h:24, > from /tmp/e2/build/linux-4.9.180/arch/powerpc/include/asm/hardirq.h:5, > from /tmp/e2/build/linux-4.9.180/include/linux/hardirq.h:8, > from /tmp/e2/build/linux-4.9.180/include/linux/interrupt.h:12, > from /tmp/e2/build/linux-4.9.180/arch/powerpc/platforms/52xx/mpc52xx_lpbfifo.c:12: > /tmp/e2/build/linux-4.9.180/arch/powerpc/platforms/52xx/mpc52xx_lpbfifo.c:581:24: note: 'init_module' target declared here > 581 | module_platform_driver(mpc52xx_lpbfifo_driver); > | ^~~~~~~~~~~~~~~~~~~~~~ > /tmp/e2/build/linux-4.9.180/include/linux/device.h:1351:19: note: in definition of macro 'module_driver' > 1351 | static int __init __driver##_init(void) \ > | ^~~~~~~~ > /tmp/e2/build/linux-4.9.180/arch/powerpc/platforms/52xx/mpc52xx_lpbfifo.c:581:1: note: in expansion of macro 'module_platform_driver' > 581 | module_platform_driver(mpc52xx_lpbfifo_driver); > | ^~~~~~~~~~~~~~~~~~~~~~ > > > So this needs a6e60d84989fa0e91db7f236eda40453b0e44afa, which needs > c0d9782f5b6d7157635ae2fd782a4b27d55a6013, which can't be applied cleanly > because a3f8a30f3f0079c7edfc72e329eee8594fb3e3cb is missing in 4.9. > > I have applied a6e60d84989fa0e91db7f236eda40453b0e44afa and modified it to > directly use __attribute__((__copy__(initfn))) and (exitfn), which fixes the > build for me. I just added some patches for gcc9 to 4.14 and 4.19, are you really going to want to build it on 4.9? If so, I can try to fix this up... thanks, greg k-h
