Commit 54c3931
tracing: hold caller_addr to hardirq_{enable,disable}_ip
Currently, The arguments passing to lockdep_hardirqs_{on,off} was fixed
in CALLER_ADDR0.
The function trace_hardirqs_on_caller should have been intended to use
caller_addr to represent the address that caller wants to be traced.
For example, lockdep log in riscv showing the last {enabled,disabled} at
__trace_hardirqs_{on,off} all the time(if called by):
[ 57.853175] hardirqs last enabled at (2519): __trace_hardirqs_on+0xc/0x14
[ 57.853848] hardirqs last disabled at (2520): __trace_hardirqs_off+0xc/0x14
After use trace_hardirqs_xx_caller, we can get more effective information:
[ 53.781428] hardirqs last enabled at (2595): restore_all+0xe/0x66
[ 53.782185] hardirqs last disabled at (2596): ret_from_exception+0xa/0x10
Link: https://lkml.kernel.org/r/[email protected]
Cc: [email protected]
Fixes: c3bc8fd ("tracing: Centralize preemptirq tracepoints and unify their usage")
Signed-off-by: Yipeng Zou <[email protected]>
Signed-off-by: Steven Rostedt (Google) <[email protected]>1 parent 54be550 commit 54c3931
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