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RISC-V: Take text_mutex in ftrace_init_nop()
authorPalmer Dabbelt <palmerdabbelt@google.com>
Tue, 25 Aug 2020 00:21:22 +0000 (17:21 -0700)
committerPalmer Dabbelt <palmerdabbelt@google.com>
Fri, 11 Sep 2020 19:15:21 +0000 (12:15 -0700)
commite629feef3cbba8207d62b8b08f18e1bc65485750
tree85f71e6b0e4ee323d508fb1ba1bb19a74e8c47a9tree | snapshot
parent066a8aace0c5f86a6f60488ff677bb53935358dbcommit | diff
RISC-V: Take text_mutex in ftrace_init_nop()

Without this we get lockdep failures.  They're spurious failures as SMP isn't
up when ftrace_init_nop() is called.  As far as I can tell the easiest fix is
to just take the lock, which also seems like the safest fix.

Signed-off-by: Palmer Dabbelt <palmerdabbelt@google.com>
Acked-by: Guo Ren <guoren@kernel.org>
Signed-off-by: Palmer Dabbelt <palmerdabbelt@google.com>
arch/riscv/include/asm/ftrace.h diff | blob | history
arch/riscv/kernel/ftrace.c diff | blob | history
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