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Kefeng Wang e025ab842e mm: remove kern_addr_valid() completely 
Most architectures (except arm64/x86/sparc) simply return 1 for
kern_addr_valid(), which is only used in read_kcore(), and it calls
copy_from_kernel_nofault() which could check whether the address is a
valid kernel address.  So as there is no need for kern_addr_valid(), let's
remove it.

Link: https://lkml.kernel.org/r/20221018074014.185687-1-wangkefeng.wang@huawei.com
Signed-off-by: Kefeng Wang <wangkefeng.wang@huawei.com>
Acked-by: Geert Uytterhoeven <geert@linux-m68k.org>	[m68k]
Acked-by: Heiko Carstens <hca@linux.ibm.com>		[s390]
Acked-by: Christoph Hellwig <hch@lst.de>
Acked-by: Helge Deller <deller@gmx.de>			[parisc]
Acked-by: Michael Ellerman <mpe@ellerman.id.au>		[powerpc]
Acked-by: Guo Ren <guoren@kernel.org>			[csky]
Acked-by: Catalin Marinas <catalin.marinas@arm.com>	[arm64]
Cc: Alexander Gordeev <agordeev@linux.ibm.com>
Cc: Andy Lutomirski <luto@kernel.org>
Cc: Anton Ivanov <anton.ivanov@cambridgegreys.com>
Cc: <aou@eecs.berkeley.edu>
Cc: Borislav Petkov <bp@alien8.de>
Cc: Christian Borntraeger <borntraeger@linux.ibm.com>
Cc: Christophe Leroy <christophe.leroy@csgroup.eu>
Cc: Chris Zankel <chris@zankel.net>
Cc: Dave Hansen <dave.hansen@linux.intel.com>
Cc: David S. Miller <davem@davemloft.net>
Cc: Dinh Nguyen <dinguyen@kernel.org>
Cc: Greg Ungerer <gerg@linux-m68k.org>
Cc: H. Peter Anvin <hpa@zytor.com>
Cc: Huacai Chen <chenhuacai@kernel.org>
Cc: Ingo Molnar <mingo@redhat.com>
Cc: Ivan Kokshaysky <ink@jurassic.park.msu.ru>
Cc: James Bottomley <James.Bottomley@HansenPartnership.com>
Cc: Johannes Berg <johannes@sipsolutions.net>
Cc: Jonas Bonn <jonas@southpole.se>
Cc: Matt Turner <mattst88@gmail.com>
Cc: Max Filippov <jcmvbkbc@gmail.com>
Cc: Michal Simek <monstr@monstr.eu>
Cc: Nicholas Piggin <npiggin@gmail.com>
Cc: Palmer Dabbelt <palmer@rivosinc.com>
Cc: Paul Walmsley <paul.walmsley@sifive.com>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Richard Henderson <richard.henderson@linaro.org>
Cc: Richard Weinberger <richard@nod.at>
Cc: Rich Felker <dalias@libc.org>
Cc: Russell King <linux@armlinux.org.uk>
Cc: Stafford Horne <shorne@gmail.com>
Cc: Stefan Kristiansson <stefan.kristiansson@saunalahti.fi>
Cc: Sven Schnelle <svens@linux.ibm.com>
Cc: Thomas Bogendoerfer <tsbogend@alpha.franken.de>
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: Vasily Gorbik <gor@linux.ibm.com>
Cc: Vineet Gupta <vgupta@kernel.org>
Cc: Will Deacon <will@kernel.org>
Cc: Xuerui Wang <kernel@xen0n.name>
Cc: Yoshinori Sato <ysato@users.osdn.me>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
 		2022-11-08 17:37:18 -08:00
..
boot RISC-V Patches for the 6.1 Merge Window, Part 2 2022-10-14 11:21:11 -07:00
configs riscv: enable CD-ROM file systems in defconfig 2022-08-25 17:01:09 -07:00
errata Merge patch series "Some style cleanups for recent extension additions" 2022-10-13 08:46:31 -07:00
include mm: remove kern_addr_valid() completely 2022-11-08 17:37:18 -08:00
kernel RISC-V: Fix /proc/cpuinfo cpumask warning 2022-10-27 15:23:19 -07:00
kvm RISC-V: KVM: Fix kvm_riscv_vcpu_timer_pending() for Sstc 2022-10-21 11:52:45 +05:30
lib riscv: lib: uaccess: fix CSR_STATUS SR_SUM bit 2022-08-10 14:06:31 -07:00
mm RISC-V Fixes for 6.1-rc3 2022-10-28 17:03:00 -07:00
net bpf, riscv: Support riscv jit to provide bpf_line_info 2022-06-02 16:26:01 -07:00
purgatory riscv/purgatory: Omit use of bin2c 2022-08-11 09:32:34 -07:00
Kbuild riscv: move errata/ and kvm/ builds to arch/riscv/Kbuild 2022-06-01 22:26:32 -07:00
Kconfig Merge patch series "Fix RISC-V toolchain extension support detection" 2022-10-27 15:14:07 -07:00
Kconfig.debug
…
Kconfig.erratas riscv: make t-head erratas depend on MMU 2022-09-17 01:48:22 -07:00
Kconfig.socs riscv: Kconfig: Style cleanups 2022-06-30 19:26:16 -07:00
Makefile Merge patch series "Fix RISC-V toolchain extension support detection" 2022-10-27 15:14:07 -07:00