>> I want submit some code to support temporarily block multiple-threads.
> >But this code can't pass check by `checkpatch`.
>What is the error that checkpatch prints out?
>If you can't see it, try running
> util/lint/checkpatch.pl -f src/path/to/your/file.h
>directly.
>Hope that helps,
>Jonathan Neuschäfer
Error print like this:
```
WARNING: Macros with flow control statements should be avoided
#43: FILE: src/arch/riscv/include/smp.h:43:
+#define SMP_PAUSE(active) do \
+{ \
+ __label__ l_entry, l_exit; \
+ static int _flag_; \
+ if (active == read_csr(mhartid)) \
+ goto l_entry; \
+ do {barrier(); } while (!_flag_); \
+ goto l_exit; \
+l_entry:
WARNING: please, no spaces at the start of a line
#45: FILE: src/arch/riscv/include/smp.h:45:
+ __label__ l_entry, l_exit; \$
WARNING: please, no spaces at the start of a line
#46: FILE: src/arch/riscv/include/smp.h:46:
+ static int _flag_; \$
WARNING: please, no spaces at the start of a line
#47: FILE: src/arch/riscv/include/smp.h:47:
+ if (active == read_csr(mhartid)) \$
ERROR: code indent should use tabs where possible
#48: FILE: src/arch/riscv/include/smp.h:48:
+ goto l_entry; \$
WARNING: please, no spaces at the start of a line
#48: FILE: src/arch/riscv/include/smp.h:48:
+ goto l_entry; \$
WARNING: please, no spaces at the start of a line
#49: FILE: src/arch/riscv/include/smp.h:49:
+ do {barrier(); } while (!_flag_); \$
WARNING: please, no spaces at the start of a line
#50: FILE: src/arch/riscv/include/smp.h:50:
+ goto l_exit; \$
ERROR: Macros with multiple statements should be enclosed in a do - while loop
#54: FILE: src/arch/riscv/include/smp.h:54:
+#define SMP_RESUME() \
+ _flag_ = 1; \
+l_exit: \
+ barrier(); \
+} while (0)
WARNING: please, no spaces at the start of a line
#55: FILE: src/arch/riscv/include/smp.h:55:
+ _flag_ = 1; \$
WARNING: please, no spaces at the start of a line
#57: FILE: src/arch/riscv/include/smp.h:57:
+ barrier(); \$
total: 2 errors, 9 warnings, 65 lines checked
```