| Message ID | 20210713084541.7958-1-andriy.shevchenko@linux.intel.com (mailing list archive) |
|---|---|
| State | New, archived |
| Headers | show |
| Series | [v1,1/3] kernel.h: Don't pollute header with single user macros | expand |
On Tue, Jul 13, 2021 at 11:45:39AM +0300, Andy Shevchenko wrote: > The COUNT_ARGS() and CONCATENATE() macros are used by a single user. > Let move them to it. That seems to be because people like re-implementing it instead of reusing existing ones: arch/x86/include/asm/efi.h:#define __efi_nargs__(_0, _1, _2, _3, _4, _5, _6, _7, n, ...) \ arch/x86/include/asm/rmwcc.h:#define __RMWcc_ARGS(_0, _1, _2, _3, _4, _5, _6, _7, _8, _9, _10, _11, _12, _n, X...) _n include/linux/arm-smccc.h:#define ___count_args(_0, _1, _2, _3, _4, _5, _6, _7, _8, x, ...) x include/linux/kernel.h:#define __COUNT_ARGS(_0, _1, _2, _3, _4, _5, _6, _7, _8, _9, _10, _11, _12, _n, X...) _n
On Tue, Jul 13, 2021 at 3:41 PM Peter Zijlstra <peterz@infradead.org> wrote: > > On Tue, Jul 13, 2021 at 11:45:39AM +0300, Andy Shevchenko wrote: > > The COUNT_ARGS() and CONCATENATE() macros are used by a single user. > > Let move them to it. > > That seems to be because people like re-implementing it instead of > reusing existing ones: > > arch/x86/include/asm/efi.h:#define __efi_nargs__(_0, _1, _2, _3, _4, _5, _6, _7, n, ...) \ > arch/x86/include/asm/rmwcc.h:#define __RMWcc_ARGS(_0, _1, _2, _3, _4, _5, _6, _7, _8, _9, _10, _11, _12, _n, X...) _n > include/linux/arm-smccc.h:#define ___count_args(_0, _1, _2, _3, _4, _5, _6, _7, _8, x, ...) x > include/linux/kernel.h:#define __COUNT_ARGS(_0, _1, _2, _3, _4, _5, _6, _7, _8, _9, _10, _11, _12, _n, X...) _n Good catch! I will redo this, thanks!
diff --git a/include/linux/kernel.h b/include/linux/kernel.h index 1b2f0a7e00d6..743d3c9a3227 100644 --- a/include/linux/kernel.h +++ b/include/linux/kernel.h @@ -476,13 +476,6 @@ ftrace_vprintk(const char *fmt, va_list ap) static inline void ftrace_dump(enum ftrace_dump_mode oops_dump_mode) { } #endif /* CONFIG_TRACING */ -/* This counts to 12. Any more, it will return 13th argument. */ -#define __COUNT_ARGS(_0, _1, _2, _3, _4, _5, _6, _7, _8, _9, _10, _11, _12, _n, X...) _n -#define COUNT_ARGS(X...) __COUNT_ARGS(, ##X, 12, 11, 10, 9, 8, 7, 6, 5, 4, 3, 2, 1, 0) - -#define __CONCAT(a, b) a ## b -#define CONCATENATE(a, b) __CONCAT(a, b) - /** * container_of - cast a member of a structure out to the containing structure * @ptr: the pointer to the member. diff --git a/include/trace/bpf_probe.h b/include/trace/bpf_probe.h index a23be89119aa..6f57c96f7dc3 100644 --- a/include/trace/bpf_probe.h +++ b/include/trace/bpf_probe.h @@ -27,6 +27,13 @@ #undef __perf_task #define __perf_task(t) (t) +/* This counts to 12. Any more, it will return 13th argument. */ +#define __COUNT_ARGS(_0, _1, _2, _3, _4, _5, _6, _7, _8, _9, _10, _11, _12, _n, X...) _n +#define COUNT_ARGS(X...) __COUNT_ARGS(, ##X, 12, 11, 10, 9, 8, 7, 6, 5, 4, 3, 2, 1, 0) + +#define __CONCAT(a, b) a ## b +#define CONCATENATE(a, b) __CONCAT(a, b) + /* cast any integer, pointer, or small struct to u64 */ #define UINTTYPE(size) \ __typeof__(__builtin_choose_expr(size == 1, (u8)1, \
The COUNT_ARGS() and CONCATENATE() macros are used by a single user. Let move them to it. Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com> --- include/linux/kernel.h | 7 ------- include/trace/bpf_probe.h | 7 +++++++ 2 files changed, 7 insertions(+), 7 deletions(-)