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(parent: cfa4777) | patch
powerpc: Add dear as a synonym for pt_regs.dar register
authorXiongwei Song <sxwjean@gmail.com>
Sat, 7 Aug 2021 01:02:38 +0000 (09:02 +0800)
committerMichael Ellerman <mpe@ellerman.id.au>
Thu, 26 Aug 2021 11:21:07 +0000 (21:21 +1000)
commit4872cbd0ca35ca5b20d52e2539e7e1950f126e7b
tree29c33ca9887a0c182c0c0a5c1e1e2f6c03375884tree | snapshot
parentcfa47772ca8d53d7a6c9b331a7f6e7c4c9827214commit | diff
powerpc: Add dear as a synonym for pt_regs.dar register

Create an anonymous union for dar and dear regsiters, we can reference
dear to get the effective address when CONFIG_4xx=y or CONFIG_BOOKE=y.
Otherwise, reference dar. 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/20210807010239.416055-4-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
Domain: System / Kernel;