add new system file

hc

2024-02-20 102a0743326a03cd1a1202ceda21e175b7d3575c

 kernel/arch/mips/kernel/sysrq.c
..
..
@@ -52,7 +52,7 @@
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 #endif
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 }
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-static struct sysrq_key_op sysrq_tlbdump_op = {
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+static const struct sysrq_key_op sysrq_tlbdump_op = {
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 	.handler        = sysrq_handle_tlbdump,
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 	.help_msg       = "show-tlbs(x)",
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 	.action_msg     = "Show TLB entries",