Re: [PATCH V4 03/17] asm-generic: compat: Cleanup duplicate definitions

[PATCH V4 00/17] riscv: compat: Add COMPAT mode support for rv64 · guoren@kernel.org · 2022-01-29
[PATCH V4 01/17] kconfig: Add SYSVIPC_COMPAT for all architectures · guoren@kernel.org · 2022-01-29
Re: [PATCH V4 01/17] kconfig: Add SYSVIPC_COMPAT for all architectures · Christoph Hellwig <hch@infradead.org> · 2022-01-31
[PATCH V4 02/17] fs: stat: compat: Add __ARCH_WANT_COMPAT_STAT · guoren@kernel.org · 2022-01-29
Re: [PATCH V4 02/17] fs: stat: compat: Add __ARCH_WANT_COMPAT_STAT · Christoph Hellwig <hch@infradead.org> · 2022-01-31
[PATCH V4 03/17] asm-generic: compat: Cleanup duplicate definitions · guoren@kernel.org · 2022-01-29
Re: [PATCH V4 03/17] asm-generic: compat: Cleanup duplicate definitions · Arnd Bergmann <arnd@arndb.de> · 2022-01-29
Re: [PATCH V4 03/17] asm-generic: compat: Cleanup duplicate definitions · Christoph Hellwig <hch@infradead.org> · 2022-01-31
Re: [PATCH V4 03/17] asm-generic: compat: Cleanup duplicate definitions · Guo Ren <guoren@kernel.org> · 2022-01-31
[PATCH V4 04/17] syscalls: compat: Fix the missing part for __SYSCALL_COMPAT · guoren@kernel.org · 2022-01-29
Re: [PATCH V4 04/17] syscalls: compat: Fix the missing part for __SYSCALL_COMPAT · Christoph Hellwig <hch@infradead.org> · 2022-01-31
[PATCH V4 05/17] riscv: Fixup difference with defconfig · guoren@kernel.org · 2022-01-29
Re: [PATCH V4 05/17] riscv: Fixup difference with defconfig · Christoph Hellwig <hch@infradead.org> · 2022-01-31
Re: [PATCH V4 05/17] riscv: Fixup difference with defconfig · Arnd Bergmann <arnd@arndb.de> · 2022-01-31
Re: [PATCH V4 05/17] riscv: Fixup difference with defconfig · Christoph Hellwig <hch@infradead.org> · 2022-01-31
Re: [PATCH V4 05/17] riscv: Fixup difference with defconfig · Arnd Bergmann <arnd@arndb.de> · 2022-01-31
[PATCH V4 06/17] riscv: compat: Add basic compat date type implementation · guoren@kernel.org · 2022-01-29
Re: [PATCH V4 06/17] riscv: compat: Add basic compat date type implementation · Arnd Bergmann <arnd@arndb.de> · 2022-01-29
Re: [PATCH V4 06/17] riscv: compat: Add basic compat date type implementation · Guo Ren <guoren@kernel.org> · 2022-01-30
Re: [PATCH V4 06/17] riscv: compat: Add basic compat date type implementation · Arnd Bergmann <arnd@arndb.de> · 2022-01-30
[PATCH V4 07/17] riscv: compat: Re-implement TASK_SIZE for COMPAT_32BIT · guoren@kernel.org · 2022-01-29
[PATCH V4 11/17] riscv: compat: Add elf.h implementation · guoren@kernel.org · 2022-01-29
[PATCH V4 10/17] riscv: compat: process: Add UXL_32 support in start_thread · guoren@kernel.org · 2022-01-29
[PATCH V4 08/17] riscv: compat: syscall: Add compat_sys_call_table implementation · guoren@kernel.org · 2022-01-29
Re: [PATCH V4 08/17] riscv: compat: syscall: Add compat_sys_call_table implementation · Arnd Bergmann <arnd@arndb.de> · 2022-01-29
Re: [PATCH V4 08/17] riscv: compat: syscall: Add compat_sys_call_table implementation · Guo Ren <guoren@kernel.org> · 2022-01-30
Re: [PATCH V4 08/17] riscv: compat: syscall: Add compat_sys_call_table implementation · Arnd Bergmann <arnd@arndb.de> · 2022-01-30
Re: [PATCH V4 08/17] riscv: compat: syscall: Add compat_sys_call_table implementation · Guo Ren <guoren@kernel.org> · 2022-01-30
[PATCH V4 09/17] riscv: compat: syscall: Add entry.S implementation · guoren@kernel.org · 2022-01-29
[PATCH V4 12/17] riscv: compat: vdso: Add rv32 VDSO base code implementation · guoren@kernel.org · 2022-01-29
[PATCH V4 13/17] riscv: compat: vdso: Add setup additional pages implementation · guoren@kernel.org · 2022-01-29
[PATCH V4 14/17] riscv: compat: signal: Add rt_frame implementation · guoren@kernel.org · 2022-01-29
[PATCH V4 16/17] riscv: compat: Add COMPAT Kbuild skeletal support · guoren@kernel.org · 2022-01-29
Re: [PATCH V4 16/17] riscv: compat: Add COMPAT Kbuild skeletal support · Christoph Hellwig <hch@infradead.org> · 2022-01-31
Re: [PATCH V4 16/17] riscv: compat: Add COMPAT Kbuild skeletal support · Guo Ren <guoren@kernel.org> · 2022-01-31
Re: [PATCH V4 16/17] riscv: compat: Add COMPAT Kbuild skeletal support · Christoph Hellwig <hch@lst.de> · 2022-02-01
Re: [PATCH V4 16/17] riscv: compat: Add COMPAT Kbuild skeletal support · Guo Ren <guoren@kernel.org> · 2022-02-01
Re: [PATCH V4 16/17] riscv: compat: Add COMPAT Kbuild skeletal support · Arnd Bergmann <arnd@arndb.de> · 2022-02-01
Re: [PATCH V4 16/17] riscv: compat: Add COMPAT Kbuild skeletal support · Guo Ren <guoren@kernel.org> · 2022-02-01
Re: [PATCH V4 16/17] riscv: compat: Add COMPAT Kbuild skeletal support · Arnd Bergmann <arnd@arndb.de> · 2022-02-01
Re: [PATCH V4 16/17] riscv: compat: Add COMPAT Kbuild skeletal support · Guo Ren <guoren@kernel.org> · 2022-02-01
[PATCH V4 17/17] KVM: compat: riscv: Prevent KVM_COMPAT from being selected · guoren@kernel.org · 2022-01-29
[PATCH V4 15/17] riscv: compat: ptrace: Add compat_arch_ptrace implement · guoren@kernel.org · 2022-01-29

From: Christoph Hellwig <hch@infradead.org>
Date: 2022-01-31 12:21:37
Also in: linux-arch, linux-arm-kernel, linux-mips, linux-riscv, linux-s390, linuxppc-dev, lkml

On Sat, Jan 29, 2022 at 08:17:14PM +0800, guoren@kernel.org wrote:

From: Guo Ren <redacted>

There are 7 64bit architectures that support Linux COMPAT mode to
run 32bit applications. A lot of definitions are duplicate:
 - COMPAT_USER_HZ
 - COMPAT_RLIM_INFINITY
 - COMPAT_OFF_T_MAX
 - __compat_uid_t, __compat_uid_t
 - compat_dev_t
 - compat_ipc_pid_t
 - struct compat_flock
 - struct compat_flock64
 - struct compat_statfs
 - struct compat_ipc64_perm, compat_semid64_ds,
	  compat_msqid64_ds, compat_shmid64_ds

Cleanup duplicate definitions and merge them into asm-generic.

The flock part seems to clash with the general compat_flock
consolidation.  Otherwise this looks like a good idea.

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