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[v7,1/6] kernel.h: Split out COUNT_ARGS() and CONCATENATE()

Message ID 20230323173610.60442-2-andriy.shevchenko@linux.intel.com (mailing list archive)
State Superseded
Delegated to: Bjorn Helgaas
Headers show
Series Add pci_dev_for_each_resource() helper and update users | expand

Commit Message

Andy Shevchenko March 23, 2023, 5:36 p.m. UTC 
kernel.h is being used as a dump for all kinds of stuff for a long time.
The COUNT_ARGS() and CONCATENATE() macros may be used in some places
without need of the full kernel.h dependency train with it.

Here is the attempt on cleaning it up by splitting out these macros().

Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
---
 include/linux/args.h   | 13 +++++++++++++
 include/linux/kernel.h |  8 +-------
 2 files changed, 14 insertions(+), 7 deletions(-)
 create mode 100644 include/linux/args.h
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Patch

diff --git a/include/linux/args.h b/include/linux/args.h
new file mode 100644
index 000000000000..16ef6fad8add
--- /dev/null
+++ b/include/linux/args.h
@@ -0,0 +1,13 @@ 
+/* SPDX-License-Identifier: GPL-2.0 */
+
+#ifndef _LINUX_ARGS_H
+#define _LINUX_ARGS_H
+
+/* 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)
+
+#endif	/* _LINUX_ARGS_H */
diff --git a/include/linux/kernel.h b/include/linux/kernel.h
index 40bce7495af8..c049d3394425 100644
--- a/include/linux/kernel.h
+++ b/include/linux/kernel.h
@@ -13,6 +13,7 @@ 
 
 #include <linux/stdarg.h>
 #include <linux/align.h>
+#include <linux/args.h>
 #include <linux/limits.h>
 #include <linux/linkage.h>
 #include <linux/stddef.h>
@@ -484,13 +485,6 @@  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)
-
 /* Rebuild everything on CONFIG_FTRACE_MCOUNT_RECORD */
 #ifdef CONFIG_FTRACE_MCOUNT_RECORD
 # define REBUILD_DUE_TO_FTRACE_MCOUNT_RECORD