diff mbox series

[v1,1/3] kernel.h: Don't pollute header with single user macros

Message ID 20210713084541.7958-1-andriy.shevchenko@linux.intel.com
State New
Headers show
Series [v1,1/3] kernel.h: Don't pollute header with single user macros | expand

Commit Message

Andy Shevchenko July 13, 2021, 8:45 a.m. UTC
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(-)

Comments

Peter Zijlstra July 13, 2021, 12:38 p.m. UTC | #1
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
diff mbox series

Patch

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, \