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Date: Thu, 14 Dec 2023 21:06:13 +0000
To: Kees Cook <>
Cc: Andy Shevchenko <>,,, Nick DeSaulniers <>, 
	Andrew Morton <>,, 
	Tanzir Hasan <>
Subject: [PATCH v2 2/2] lib/string: shrink lib/string.i via IWYU

This diff uses an open source tool include-what-you-use (IWYU) to modify
the include list changing indirect includes to direct includes.
IWYU is implemented using the IWYUScripts github repository which is a tool that is
currently undergoing development. These changes seek to improve build times.

This change to lib/string.c resulted in a preprocessed size of
lib/string.i from 26371 lines to 5259 lines (-80%) for the x86


Signed-off-by: Tanzir Hasan <>
 lib/string.c | 14 +++++++-------
 1 file changed, 7 insertions(+), 7 deletions(-)

diff --git a/lib/string.c b/lib/string.c
index be26623953d2..7fe1acefb1a1 100644
--- a/lib/string.c
+++ b/lib/string.c
@@ -16,16 +16,16 @@
 #define __NO_FORTIFY
 #include <linux/types.h>
-#include <linux/string.h>
-#include <linux/ctype.h>
-#include <linux/kernel.h>
-#include <linux/export.h>
+#include <linux/bits.h>
 #include <linux/bug.h>
 #include <linux/errno.h>
-#include <linux/slab.h>
+#include <asm/rwonce.h>
+#include <linux/linkage.h>
+#include <linux/stddef.h>
+#include <vdso/limits.h>
+#include <linux/string.h>
+#include <linux/ctype.h>
 #include <asm/unaligned.h>
-#include <asm/byteorder.h>
 #include <asm/word-at-a-time.h>
 #include <asm/page.h>


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