powerpc: use probe_user_read() and probe_user_write()

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Instead of opencoding, use probe_user_read() to failessly read
a user location and probe_user_write() for writing to user.

Signed-off-by: Christophe Leroy <christophe.leroy@c-s.fr>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
Link: https://lore.kernel.org/r/e041f5eedb23f09ab553be8a91c3de2087147320.1579800517.git.christophe.leroy@c-s.fr

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Christophe Leroy 2020-01-23 17:30:47 +00:00 • committed by Michael Ellerman

parent 1e3531982e

commit def0bfdbd6

7 changed files with 14 additions and 62 deletions

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12

arch/powerpc/kernel/process.c

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6

arch/powerpc/kvm/book3s_64_mmu_radix.c

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6

arch/powerpc/mm/fault.c

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14

arch/powerpc/oprofile/backtrace.c

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20

arch/powerpc/perf/callchain.c

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8

arch/powerpc/perf/core-book3s.c

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10

arch/powerpc/sysdev/fsl_pci.c

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