[PATCH] iio: mapping file for include-what-you-use tool

[Joshua Crofts <joshua.crofts1@gmail.com>]

As promised, I'm sending my IWYU mapping file, based on Jonathan's
version with a few additional tweaks by me.

Other than adding support for more assembly file business, I've also
experimented with individual symbol definition (see BIT() and GENMASK()
in the following file) - this is to prevent issues such as the tool
wanting you to include <linux/bits.h> when you already have
<linux/bitops.h> in the source file (I agree, doing this symbol by
symbol is tedious, but BIT() and GENMASK() are symbols that especially
do this, and they're included in most, if not all drivers).

Feel free to improve this file and pass it on. I wouldn't really fully
rely on IWYU as even with the mapping file the results can be weird,
but it definitely serves as a good starting point when doing driver
cleanup.

I'm making this patch an RFC - this is not intended for merging.

Signed-off-by: Joshua Crofts <joshua.crofts1@gmail.com>
---
 tools/iio/iio.imp | 46 ++++++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 46 insertions(+)
 create mode 100644 tools/iio/iio.imp

diff --git a/tools/iio/iio.imp b/tools/iio/iio.imp
new file mode 100644
index 000000000000..c8e9c509bb93
--- /dev/null
+++ b/tools/iio/iio.imp
@@ -0,0 +1,46 @@
+[
+    { "include": ["\"linux/bitops.h\"", "private", "<linux/bitops.h>", "public"] },
+    { "include": ["\"linux/bits.h\"", "private", "<linux/bits.h>", "public"] },
+    { "include": ["\"linux/byteorder/generic.h\"", "private", "<asm/byteorder.h>", "public"] },
+    { "include": ["\"linux/device.h\"", "private", "<linux/device.h>", "public"] },
+    { "include": ["\"linux/ktime.h\"", "private", "<linux/ktime.h>", "public"] },
+    { "include": ["\"linux/limits.h\"", "private", "<linux/limits.h>", "public"] },
+    { "include": ["\"linux/mod_devicetable.h\"", "private", "<linux/mod_devicetable.h>", "public"] },
+    { "include": ["\"linux/mutex_types.h\"", "private", "<linux/mutex.h>", "public"] },
+    { "include": ["\"linux/pm.h\"", "private", "<linux/pm.h>", "public"] },
+    { "include": ["\"linux/sched.h\"", "private", "<linux/sched.h>", "public"] },
+    { "include": ["\"linux/sizes.h\"", "private", "<linux/sizes.h>", "public"] },
+    { "include": ["\"linux/slab.h\"", "private", "<linux/slab.h>", "public"] },
+    { "include": ["\"linux/spi/spi.h\"", "private", "<linux/spi/spi.h>", "public"] },
+    { "include": ["\"linux/spinlock_types.h\"", "private", "<linux/spinlock.h>", "public"] },
+    { "include": ["\"linux/spinlock.h\"", "private", "<linux/spinlock.h>", "public"] },
+    { "include": ["\"linux/stat.h\"", "private", "<linux/stat.h>", "public"] },
+    { "include": ["\"linux/stdarg.h\"", "private", "<linux/stdarg.h>", "public"] },
+    { "include": ["\"linux/stddef.h\"", "private", "<linux/stddef.h>", "public"] },
+    { "include": ["\"linux/string.h\"", "private", "<linux/string.h>", "public"] },
+    { "include": ["\"linux/stringify.h\"", "private", "<linux/stringify.h>", "public"] },
+    { "include": ["\"linux/sysfs.h\"", "private", "<linux/sysfs.h>", "public"] },
+    { "include": ["\"linux/time.h\"", "private", "<linux/time.h>", "public"] },
+    { "include": ["\"linux/timer.h\"", "private", "<linux/timer.h>", "public"] },
+    { "include": ["\"linux/types.h\"", "private", "<linux/types.h>", "public"] },
+    { "include": ["\"linux/uuid.h\"", "private", "<linux/uuid.h>", "public"] },
+    { "include": ["\"linux/wait.h\"", "private", "<linux/wait.h>", "public"] },
+    { "include": ["\"linux/workqueue.h\"", "private", "<linux/workqueue.h>", "public"] },
+
+    { "include": ["\"vdso/bits.h\"", "private", "<linux/bits.h>", "public"] },
+    { "include": ["\"vdso/ktime.h\"", "private", "<linux/ktime.h>", "public"] },
+    { "include": ["\"vdso/limits.h\"", "private", "<linux/limits.h>", "public"] },
+    { "include": ["\"vdso/time64.h\"", "private", "<linux/time64.h>", "public"] },
+    
+    { "include": ["\"asm-generic/div64.h\"", "private", "<linux/math64.h>", "public"] },
+    { "include": ["\"asm-generic/errno.h\"", "private", "<linux/errno.h>", "public"] },
+    { "include": ["\"asm-generic/errno-base.h\"", "private", "<linux/errno.h>", "public"] },
+    { "include": ["\"asm-generic/int-ll64.h\"", "private", "<linux/types.h>", "public"] },
+
+    { "include": ["\"linux/iio/types.h\"", "private", "<linux/iio/iio.h>", "public"] },
+
+    { "symbol": ["BIT", "private", "<linux/bits.h>", "public"] },
+    { "symbol": ["BIT", "private", "<linux/bitops.h>", "public"] },
+    { "symbol": ["GENMASK", "private", "<linux/bits.h>", "public"] },
+    { "symbol": ["GENMASK", "private", "<linux/bitops.h>", "public"] }
+]
-- 
2.47.3