# git rev-parse -q --verify 498e47cd1d1f3e0a870a29d1b28093e64db52fd2^{commit}
498e47cd1d1f3e0a870a29d1b28093e64db52fd2
already have revision, skipping fetch
# git checkout -q -f -B kisskb 498e47cd1d1f3e0a870a29d1b28093e64db52fd2
# git clean -qxdf
# < git log -1
# commit 498e47cd1d1f3e0a870a29d1b28093e64db52fd2
# Author: Linus Torvalds <torvalds@linux-foundation.org>
# Date:   Wed Mar 27 09:48:47 2024 -0700
# 
#     Fix build errors due to new UIO_MEM_DMA_COHERENT mess
#     
#     Commit 576882ef5e7f ("uio: introduce UIO_MEM_DMA_COHERENT type")
#     introduced a new use-case for 'struct uio_mem' where the 'mem' field now
#     contains a kernel virtual address when 'memtype' is set to
#     UIO_MEM_DMA_COHERENT.
#     
#     That in turn causes build errors, because 'mem' is of type
#     'phys_addr_t', and a virtual address is a pointer type.  When the code
#     just blindly uses cast to mix the two, it caused problems when
#     phys_addr_t isn't the same size as a pointer - notably on 32-bit
#     architectures with PHYS_ADDR_T_64BIT.
#     
#     The proper thing to do would probably be to use a union member, and not
#     have any casts, and make the 'mem' member be a union of 'mem.physaddr'
#     and 'mem.vaddr', based on 'memtype'.
#     
#     This is not that proper thing.  This is just fixing the ugly casts to be
#     even uglier, but at least not cause build errors on 32-bit platforms
#     with 64-bit physical addresses.
#     
#     Reported-by: Guenter Roeck <linux@roeck-us.net>
#     Fixes: 576882ef5e7f ("uio: introduce UIO_MEM_DMA_COHERENT type")
#     Fixes: 7722151e4651 ("uio_pruss: UIO_MEM_DMA_COHERENT conversion")
#     Fixes: 019947805a8d ("uio_dmem_genirq: UIO_MEM_DMA_COHERENT conversion")
#     Cc: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
#     Cc: Chris Leech <cleech@redhat.com>
#     Cc: Nilesh Javali <njavali@marvell.com>
#     Cc: Christoph Hellwig <hch@lst.de>
#     Signed-off-by: Linus Torvalds <torvalds@linuxfoundation.org>
# < /opt/cross/kisskb/korg/gcc-5.5.0-nolibc/sparc64-linux/bin/sparc64-linux-gcc --version
# < /opt/cross/kisskb/korg/gcc-5.5.0-nolibc/sparc64-linux/bin/sparc64-linux-ld --version
# < git log --format=%s --max-count=1 498e47cd1d1f3e0a870a29d1b28093e64db52fd2
# make -s -j 40 ARCH=sparc64 O=/kisskb/build/linus_allmodconfig_sparc64-gcc5 CROSS_COMPILE=/opt/cross/kisskb/korg/gcc-5.5.0-nolibc/sparc64-linux/bin/sparc64-linux-  allmodconfig
# Added to kconfig CONFIG_BUILD_DOCSRC=n
# Added to kconfig CONFIG_HAVE_FTRACE_MCOUNT_RECORD=n
# Added to kconfig CONFIG_SAMPLES=n
# Added to kconfig CONFIG_MODULE_SIG=n
# < make -s -j 40 ARCH=sparc64 O=/kisskb/build/linus_allmodconfig_sparc64-gcc5 CROSS_COMPILE=/opt/cross/kisskb/korg/gcc-5.5.0-nolibc/sparc64-linux/bin/sparc64-linux-  help
# make -s -j 40 ARCH=sparc64 O=/kisskb/build/linus_allmodconfig_sparc64-gcc5 CROSS_COMPILE=/opt/cross/kisskb/korg/gcc-5.5.0-nolibc/sparc64-linux/bin/sparc64-linux-  olddefconfig
# make -s -j 40 ARCH=sparc64 O=/kisskb/build/linus_allmodconfig_sparc64-gcc5 CROSS_COMPILE=/opt/cross/kisskb/korg/gcc-5.5.0-nolibc/sparc64-linux/bin/sparc64-linux-  
<stdin>:1519:2: warning: #warning syscall clone3 not implemented [-Wcpp]
cc1: warning: unrecognized command line option '-Wno-shift-negative-value'
cc1: warning: unrecognized command line option '-Wno-stringop-overflow'
/kisskb/src/arch/sparc/vdso/vma.c:246:12: error: no previous prototype for 'init_vdso_image' [-Werror=missing-prototypes]
 int __init init_vdso_image(const struct vdso_image *image,
            ^
cc1: error: unrecognized command line option '-Wno-shift-negative-value' [-Werror]
cc1: error: unrecognized command line option '-Wno-stringop-overflow' [-Werror]
cc1: all warnings being treated as errors
make[5]: *** [/kisskb/src/scripts/Makefile.build:244: arch/sparc/vdso/vma.o] Error 1
make[4]: *** [/kisskb/src/scripts/Makefile.build:485: arch/sparc/vdso] Error 2
make[4]: *** Waiting for unfinished jobs....
/kisskb/src/arch/sparc/power/hibernate.c:22:5: error: no previous prototype for 'pfn_is_nosave' [-Werror=missing-prototypes]
 int pfn_is_nosave(unsigned long pfn)
     ^
/kisskb/src/arch/sparc/power/hibernate.c:30:6: error: no previous prototype for 'save_processor_state' [-Werror=missing-prototypes]
 void save_processor_state(void)
      ^
/kisskb/src/arch/sparc/power/hibernate.c:35:6: error: no previous prototype for 'restore_processor_state' [-Werror=missing-prototypes]
 void restore_processor_state(void)
      ^
cc1: error: unrecognized command line option '-Wno-shift-negative-value' [-Werror]
cc1: error: unrecognized command line option '-Wno-stringop-overflow' [-Werror]
cc1: all warnings being treated as errors
make[4]: *** [/kisskb/src/scripts/Makefile.build:244: arch/sparc/power/hibernate.o] Error 1
make[3]: *** [/kisskb/src/scripts/Makefile.build:485: arch/sparc/power] Error 2
make[3]: *** Waiting for unfinished jobs....
/kisskb/src/arch/sparc/kernel/traps_64.c:253:6: error: no previous prototype for 'is_no_fault_exception' [-Werror=missing-prototypes]
 bool is_no_fault_exception(struct pt_regs *regs)
      ^
/kisskb/src/arch/sparc/kernel/traps_64.c:2035:6: error: no previous prototype for 'do_mcd_err' [-Werror=missing-prototypes]
 void do_mcd_err(struct pt_regs *regs, struct sun4v_error_entry ent)
      ^
/kisskb/src/arch/sparc/kernel/traps_64.c:2153:6: error: no previous prototype for 'sun4v_nonresum_error_user_handled' [-Werror=missing-prototypes]
 bool sun4v_nonresum_error_user_handled(struct pt_regs *regs,
      ^
/kisskb/src/arch/sparc/prom/p1275.c:52:6: error: no previous prototype for 'prom_cif_init' [-Werror=missing-prototypes]
 void prom_cif_init(void *cif_handler, void *cif_stack)
      ^
cc1: error: unrecognized command line option '-Wno-shift-negative-value' [-Werror]
cc1: error: unrecognized command line option '-Wno-stringop-overflow' [-Werror]
cc1: all warnings being treated as errors
make[4]: *** [/kisskb/src/scripts/Makefile.build:244: arch/sparc/prom/p1275.o] Error 1
make[4]: *** Waiting for unfinished jobs....
/kisskb/src/arch/sparc/prom/misc_64.c:165:5: error: no previous prototype for 'prom_get_mmu_ihandle' [-Werror=missing-prototypes]
 int prom_get_mmu_ihandle(void)
     ^
cc1: error: unrecognized command line option '-Wno-shift-negative-value' [-Werror]
cc1: error: unrecognized command line option '-Wno-stringop-overflow' [-Werror]
cc1: all warnings being treated as errors
make[4]: *** [/kisskb/src/scripts/Makefile.build:244: arch/sparc/prom/misc_64.o] Error 1
make[3]: *** [/kisskb/src/scripts/Makefile.build:485: arch/sparc/prom] Error 2
cc1: error: unrecognized command line option '-Wno-shift-negative-value' [-Werror]
cc1: error: unrecognized command line option '-Wno-stringop-overflow' [-Werror]
cc1: all warnings being treated as errors
make[5]: *** [/kisskb/src/scripts/Makefile.build:244: arch/sparc/kernel/traps_64.o] Error 1
make[4]: *** [/kisskb/src/scripts/Makefile.build:485: arch/sparc/kernel] Error 2
/kisskb/src/arch/sparc/mm/init_64.c:2644:6: error: no previous prototype for 'vmemmap_free' [-Werror=missing-prototypes]
 void vmemmap_free(unsigned long start, unsigned long end,
      ^
cc1: error: unrecognized command line option '-Wno-shift-negative-value' [-Werror]
cc1: error: unrecognized command line option '-Wno-stringop-overflow' [-Werror]
cc1: all warnings being treated as errors
make[5]: *** [/kisskb/src/scripts/Makefile.build:244: arch/sparc/mm/init_64.o] Error 1
make[5]: *** Waiting for unfinished jobs....
make[4]: *** [/kisskb/src/scripts/Makefile.build:485: arch/sparc/mm] Error 2
make[3]: *** [/kisskb/src/scripts/Makefile.build:485: arch/sparc] Error 2
In file included from /kisskb/src/arch/sparc/include/asm/floppy.h:5:0,
                 from /kisskb/src/drivers/block/floppy.c:250:
/kisskb/src/arch/sparc/include/asm/floppy_64.h:200:13: error: no previous prototype for 'sparc_floppy_irq' [-Werror=missing-prototypes]
 irqreturn_t sparc_floppy_irq(int irq, void *dev_cookie)
             ^
In file included from /kisskb/src/arch/sparc/include/asm/floppy.h:5:0,
                 from /kisskb/src/drivers/block/floppy.c:250:
/kisskb/src/arch/sparc/include/asm/floppy_64.h:437:6: error: no previous prototype for 'sun_pci_fd_dma_callback' [-Werror=missing-prototypes]
 void sun_pci_fd_dma_callback(struct ebus_dma_info *p, int event, void *cookie)
      ^
cc1: error: unrecognized command line option '-Wno-shift-negative-value' [-Werror]
cc1: error: unrecognized command line option '-Wno-stringop-overflow' [-Werror]
cc1: all warnings being treated as errors
make[5]: *** [/kisskb/src/scripts/Makefile.build:244: drivers/block/floppy.o] Error 1
make[4]: *** [/kisskb/src/scripts/Makefile.build:485: drivers/block] Error 2
make[4]: *** Waiting for unfinished jobs....
In file included from /kisskb/src/drivers/gpu/drm/msm/adreno/a6xx_gpu_state.c:17:0:
/kisskb/src/drivers/gpu/drm/msm/adreno/adreno_gen7_0_0_snapshot.h:924:19: error: 'gen7_0_0_external_core_regs' defined but not used [-Werror=unused-variable]
 static const u32 *gen7_0_0_external_core_regs[] = {
                   ^
In file included from /kisskb/src/drivers/gpu/drm/msm/adreno/a6xx_gpu_state.c:18:0:
/kisskb/src/drivers/gpu/drm/msm/adreno/adreno_gen7_2_0_snapshot.h:748:19: error: 'gen7_2_0_external_core_regs' defined but not used [-Werror=unused-variable]
 static const u32 *gen7_2_0_external_core_regs[] = {
                   ^
cc1: error: unrecognized command line option '-Wno-shift-negative-value' [-Werror]
cc1: error: unrecognized command line option '-Wno-stringop-overflow' [-Werror]
cc1: all warnings being treated as errors
make[7]: *** [/kisskb/src/scripts/Makefile.build:244: drivers/gpu/drm/msm/adreno/a6xx_gpu_state.o] Error 1
make[7]: *** Waiting for unfinished jobs....
make[6]: *** [/kisskb/src/scripts/Makefile.build:485: drivers/gpu/drm/msm] Error 2
make[6]: *** Waiting for unfinished jobs....
make[5]: *** [/kisskb/src/scripts/Makefile.build:485: drivers/gpu/drm] Error 2
make[4]: *** [/kisskb/src/scripts/Makefile.build:485: drivers/gpu] Error 2
make[3]: *** [/kisskb/src/scripts/Makefile.build:485: drivers] Error 2
make[2]: *** [/kisskb/src/Makefile:1919: .] Error 2
make[1]: *** [/kisskb/src/Makefile:240: __sub-make] Error 2
make: *** [Makefile:240: __sub-make] Error 2
Command 'make -s -j 40 ARCH=sparc64 O=/kisskb/build/linus_allmodconfig_sparc64-gcc5 CROSS_COMPILE=/opt/cross/kisskb/korg/gcc-5.5.0-nolibc/sparc64-linux/bin/sparc64-linux-  ' returned non-zero exit status 2.
# rm -rf /kisskb/build/linus_allmodconfig_sparc64-gcc5
# Build took: 0:04:10.462289