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config: remove HAVE_KERNEL_STRSCPY

Browse Source 
Sponsored-by: https://despairlabs.com/sponsor/
Reviewed-by: Brian Behlendorf <behlendorf1@llnl.gov>
Reviewed-by: Tony Hutter <hutter2@llnl.gov>
Reviewed-by: Tino Reichardt <milky-zfs@mcmilk.de>
Signed-off-by: Rob Norris <robn@despairlabs.com>
Closes #16479
This commit is contained in:
Rob Norris 2024-08-03 13:54:24 +10:00 committed by Brian Behlendorf
parent d4bbe2ff38
commit eb230c789a
3 changed files with 1 additions and 33 deletions
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25
config/kernel-strlcpy.m4
View File

@ -1,6 +1,5 @@
dnl #
dnl # 6.8.x replaced strlcpy with strscpy. Check for both so we can provide
dnl # appropriate fallbacks.
dnl # 6.8 removed strlcpy.
dnl #
AC_DEFUN([ZFS_AC_KERNEL_SRC_STRLCPY], [
ZFS_LINUX_TEST_SRC([kernel_has_strlcpy], [
@ -13,17 +12,6 @@ AC_DEFUN([ZFS_AC_KERNEL_SRC_STRLCPY], [
])
])
AC_DEFUN([ZFS_AC_KERNEL_SRC_STRSCPY], [
ZFS_LINUX_TEST_SRC([kernel_has_strscpy], [
#include <linux/string.h>
], [
const char *src = "goodbye";
char dst[32];
ssize_t len;
len = strscpy(dst, src, sizeof (dst));
])
])
AC_DEFUN([ZFS_AC_KERNEL_STRLCPY], [
AC_MSG_CHECKING([whether strlcpy() exists])
ZFS_LINUX_TEST_RESULT([kernel_has_strlcpy], [
@ -34,14 +22,3 @@ AC_DEFUN([ZFS_AC_KERNEL_STRLCPY], [
AC_MSG_RESULT([no])
])
])
AC_DEFUN([ZFS_AC_KERNEL_STRSCPY], [
AC_MSG_CHECKING([whether strscpy() exists])
ZFS_LINUX_TEST_RESULT([kernel_has_strscpy], [
AC_MSG_RESULT([yes])
AC_DEFINE(HAVE_KERNEL_STRSCPY, 1,
[strscpy() exists])
], [
AC_MSG_RESULT([no])
])
])

2
config/kernel.m4
View File

@ -141,7 +141,6 @@ AC_DEFUN([ZFS_AC_KERNEL_TEST_SRC], [
ZFS_AC_KERNEL_SRC_SET_SPECIAL_STATE
ZFS_AC_KERNEL_SRC_STANDALONE_LINUX_STDARG
ZFS_AC_KERNEL_SRC_STRLCPY
ZFS_AC_KERNEL_SRC_STRSCPY
ZFS_AC_KERNEL_SRC_PAGEMAP_FOLIO_WAIT_BIT
ZFS_AC_KERNEL_SRC_ADD_DISK
ZFS_AC_KERNEL_SRC_KTHREAD
@ -284,7 +283,6 @@ AC_DEFUN([ZFS_AC_KERNEL_TEST_RESULT], [
ZFS_AC_KERNEL_SET_SPECIAL_STATE
ZFS_AC_KERNEL_STANDALONE_LINUX_STDARG
ZFS_AC_KERNEL_STRLCPY
ZFS_AC_KERNEL_STRSCPY
ZFS_AC_KERNEL_PAGEMAP_FOLIO_WAIT_BIT
ZFS_AC_KERNEL_ADD_DISK
ZFS_AC_KERNEL_KTHREAD

7
include/os/linux/spl/sys/string.h
View File

@ -25,10 +25,7 @@
#include <linux/string.h>
/* Fallbacks for kernel missing strlcpy */
#ifndef HAVE_KERNEL_STRLCPY
#if defined(HAVE_KERNEL_STRSCPY)
/*
* strscpy is strlcpy, but returns an error on truncation. strlcpy is defined
* to return strlen(src), so detect error and override it.
@ -41,10 +38,6 @@ strlcpy(char *dest, const char *src, size_t size)
return ((size_t)ret);
return (strlen(src));
}
#else
#error "no strlcpy fallback available"
#endif
#endif /* HAVE_KERNEL_STRLCPY */
#endif /* _SPL_STRING_H */