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Message-ID: <zuZBGnW2fdIaA_VWDHq0rHzzxfyAt-imVmN8LoVry5hU1U_Yr41geYn7f2Edk8jB6cAUDsUknMjbnXUFPdcykyG_QVezsIriBeN5NO5drlo=@proton.me> Date: Tue, 10 Jun 2025 03:38:39 +0000 From: TheComputerGuy <rosscomputerguy@...ton.me> To: "miquel.raynal@...tlin.com" <miquel.raynal@...tlin.com>, "richard@....at" <richard@....at>, "vigneshr@...com" <vigneshr@...com>, "linux-mtd@...ts.infradead.org" <linux-mtd@...ts.infradead.org>, "linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org> Subject: PROBLEM: VMU driver fails to compile in 6.12.32 When compiling kernel 6.12.32 with GCC 14 and utilizing the "dreamcast_defconfig", I noticed the "drivers/mtd/maps/vmu-flash.c" file fails to compile. The error is: In file included from ../drivers/mtd/maps/vmu-flash.c:12:../include/linux/maple.h:80:23: error: field 'dev' has incomplete type 80 | struct device dev; | ^~~ ../include/linux/maple.h:85:30: error: field 'drv' has incomplete type 85 | struct device_driver drv; | ^~~ In file included from ../include/linux/init.h:5, from ../drivers/mtd/maps/vmu-flash.c:8: ../drivers/mtd/maps/vmu-flash.c: In function 'probe_maple_vmu': ./../include/linux/compiler_types.h:477:27: error: expression in static assertion is not an integer 477 | #define __same_type(a, b) __builtin_types_compatible_p(typeof(a), typeof(b)) | ^~~~~~~~~~~~~~~~~~~~~~~~~~~~ ../include/linux/build_bug.h:78:56: note: in definition of macro '__static_assert' 78 | #define __static_assert(expr, msg, ...) _Static_assert(expr, msg) | ^~~~ ../include/linux/container_of.h:20:9: note: in expansion of macro 'static_assert' 20 | static_assert(__same_type(*(ptr), ((type *)0)->member) || \ | ^~~~~~~~~~~~~ ../include/linux/container_of.h:20:23: note: in expansion of macro '__same_type' 20 | static_assert(__same_type(*(ptr), ((type *)0)->member) || \ | ^~~~~~~~~~~ ../include/linux/maple.h:99:25: note: in expansion of macro 'container_of' 99 | #define to_maple_dev(n) container_of(n, struct maple_device, dev) | ^~~~~~~~~~~~ ../drivers/mtd/maps/vmu-flash.c:775:37: note: in expansion of macro 'to_maple_dev' 775 | struct maple_device *mdev = to_maple_dev(dev); | ^~~~~~~~~~~~ ./../include/linux/compiler_types.h:477:27: error: expression in static assertion is not an integer 477 | #define __same_type(a, b) __builtin_types_compatible_p(typeof(a), typeof(b)) | ^~~~~~~~~~~~~~~~~~~~~~~~~~~~ ../include/linux/build_bug.h:78:56: note: in definition of macro '__static_assert' 78 | #define __static_assert(expr, msg, ...) _Static_assert(expr, msg) | ^~~~ ../include/linux/container_of.h:20:9: note: in expansion of macro 'static_assert' 20 | static_assert(__same_type(*(ptr), ((type *)0)->member) || \ | ^~~~~~~~~~~~~ ../include/linux/container_of.h:20:23: note: in expansion of macro '__same_type' 20 | static_assert(__same_type(*(ptr), ((type *)0)->member) || \ | ^~~~~~~~~~~ ../include/linux/container_of.h:34:56: note: in expansion of macro 'container_of' 34 | const typeof(*(ptr)) *: ((const type *)container_of(ptr, type, member)),\ | ^~~~~~~~~~~~ ../include/linux/maple.h:100:28: note: in expansion of macro 'container_of_const' 100 | #define to_maple_driver(n) container_of_const(n, struct maple_driver, drv) | ^~~~~~~~~~~~~~~~~~ ../drivers/mtd/maps/vmu-flash.c:776:37: note: in expansion of macro 'to_maple_driver' 776 | struct maple_driver *mdrv = to_maple_driver(dev->driver); | ^~~~~~~~~~~~~~~ ../drivers/mtd/maps/vmu-flash.c: In function 'remove_maple_vmu': ./../include/linux/compiler_types.h:477:27: error: expression in static assertion is not an integer 477 | #define __same_type(a, b) __builtin_types_compatible_p(typeof(a), typeof(b)) | ^~~~~~~~~~~~~~~~~~~~~~~~~~~~ ../include/linux/build_bug.h:78:56: note: in definition of macro '__static_assert' 78 | #define __static_assert(expr, msg, ...) _Static_assert(expr, msg) | ^~~~ ../include/linux/container_of.h:20:9: note: in expansion of macro 'static_assert' 20 | static_assert(__same_type(*(ptr), ((type *)0)->member) || \ | ^~~~~~~~~~~~~ ../include/linux/container_of.h:20:23: note: in expansion of macro '__same_type' 20 | static_assert(__same_type(*(ptr), ((type *)0)->member) || \ | ^~~~~~~~~~~ ../include/linux/maple.h:99:25: note: in expansion of macro 'container_of' 99 | #define to_maple_dev(n) container_of(n, struct maple_device, dev) | ^~~~~~~~~~~~ ../drivers/mtd/maps/vmu-flash.c:787:37: note: in expansion of macro 'to_maple_dev' 787 | struct maple_device *mdev = to_maple_dev(dev); | ^~~~~~~~~~~~ make[5]: *** [../scripts/Makefile.build:229: drivers/mtd/maps/vmu-flash.o] Error 1 make[4]: *** [../scripts/Makefile.build:478: drivers/mtd/maps] Error 2 make[3]: *** [../scripts/Makefile.build:478: drivers/mtd] Error 2 make[3]: *** Waiting for unfinished jobs.... ../drivers/atm/eni.c:161:13: error: conflicting types for 'dump_mem'; have 'void(struct eni_dev *)' 161 | static void dump_mem(struct eni_dev *eni_dev) | ^~~~~~~~ In file included from ../include/linux/kdebug.h:5, from ../arch/sh/include/asm/hw_breakpoint.h:9, from ../arch/sh/include/asm/processor_32.h:16, from ../arch/sh/include/asm/processor.h:173, from ../arch/sh/include/asm/thread_info.h:25, from ../include/linux/thread_info.h:60, from ../include/asm-generic/preempt.h:5, from ./arch/sh/include/generated/asm/preempt.h:1, from ../include/linux/preempt.h:79, from ../include/linux/spinlock.h:56, from ../include/linux/mmzone.h:8, from ../include/linux/gfp.h:7, from ../include/linux/umh.h:4, from ../include/linux/kmod.h:9, from ../include/linux/module.h:17, from ../drivers/atm/eni.c:7: ../arch/sh/include/asm/kdebug.h:16:13: note: previous declaration of 'dump_mem' with type 'void(const char *, const char *, long unsigned int, long unsigned int)' 16 | extern void dump_mem(const char *str, const char *loglvl, | ^~~~~~~~ make[4]: *** [../scripts/Makefile.build:229: drivers/atm/eni.o] Error 1 make[3]: *** [../scripts/Makefile.build:478: drivers/atm] Error 2 make[2]: *** [../scripts/Makefile.build:478: drivers] Error 2 make[2]: *** Waiting for unfinished jobs.... tar: Substituting -9223372036854775807 for unknown date format '1980\345\271\264 1\346\234\210 1\346\227\245 \347\201\253\346\233\234\346\227\245 00:00:00 UTC' CC [M] kernel/kheaders.o make[1]: *** [/home/ross/nixpkgs/linux-6.12.32/Makefile:1945: .] Error 2 make: *** [../Makefile:224: __sub-make] Error 2
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