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authorRasmus Villemoes <[email protected]>2026-04-21 09:54:33 +0200
committerTom Rini <[email protected]>2026-05-12 15:38:00 -0600
commit349d148f16d83da3b1e3475be0e43bfda4f4ab71 (patch)
tree581addc68b59cb53a95c63d3f33b3f418707d12a
parent719cacb92e039308e23cbd6b653275e939a5aca5 (diff)
lib/string.c: drop pointless __HAVE_ARCH_STRDUP
There has never been an arch-specific optimized implementation of str[n]dup, nor is there likely to ever be one, because unlike their cousins strlen(), strcpy() and similar that simply read/write the src/dst, the dup functions by definition involve memory allocation. So drop this irrelevant cpp guard. Reviewed-by: Simon Glass <[email protected]> Signed-off-by: Rasmus Villemoes <[email protected]>
-rw-r--r--include/linux/string.h3
-rw-r--r--lib/string.c2
2 files changed, 1 insertions, 4 deletions
diff --git a/include/linux/string.h b/include/linux/string.h
index 9e47fe01c16..a28150fa578 100644
--- a/include/linux/string.h
+++ b/include/linux/string.h
@@ -101,10 +101,9 @@ size_t strcspn(const char *s, const char *reject);
# define strndup sandbox_strndup
#endif
-#ifndef __HAVE_ARCH_STRDUP
extern char * strdup(const char *);
extern char * strndup(const char *, size_t);
-#endif
+
#ifndef __HAVE_ARCH_STRSWAB
extern char * strswab(const char *);
#endif
diff --git a/lib/string.c b/lib/string.c
index c2813e0f854..2c1baa568b9 100644
--- a/lib/string.c
+++ b/lib/string.c
@@ -343,7 +343,6 @@ size_t strcspn(const char *s, const char *reject)
}
#endif
-#ifndef __HAVE_ARCH_STRDUP
char * strdup(const char *s)
{
char *new;
@@ -379,7 +378,6 @@ char * strndup(const char *s, size_t n)
return new;
}
-#endif
#ifndef __HAVE_ARCH_STRSPN
/**