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powerpc: Add esr as a synonym for pt_regs.dsisr
authorXiongwei Song <sxwjean@gmail.com>
Sat, 7 Aug 2021 01:02:36 +0000 (09:02 +0800)
committerMichael Ellerman <mpe@ellerman.id.au>
Thu, 26 Aug 2021 11:21:06 +0000 (21:21 +1000)
commit4f8e78c0757e3c5a65d9d8ac76e2434c71a78f5a
tree2993bcc95e5bbccf0a2101a7c6acd861f505bfectree
parente42edf9b9d126bb1c743f2e7984877ba27f09fe7commit | diff
powerpc: Add esr as a synonym for pt_regs.dsisr

Create an anonymous union for dsisr and esr regsiters, we can reference
esr to get the exception detail when CONFIG_4xx=y or CONFIG_BOOKE=y.
Otherwise, reference dsisr. This makes code more clear.

Signed-off-by: Xiongwei Song <sxwjean@gmail.com>
[mpe: Reword commit title]
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
Link: https://lore.kernel.org/r/20210807010239.416055-2-sxwjean@me.com
arch/powerpc/include/asm/ptrace.h diff | blob | history
arch/powerpc/kernel/process.c diff | blob | history
arch/powerpc/kernel/ptrace/ptrace.c diff | blob | history
arch/powerpc/kernel/traps.c diff | blob | history
arch/powerpc/platforms/44x/machine_check.c diff | blob | history
arch/powerpc/platforms/4xx/machine_check.c diff | blob | history
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