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authorDaniel Baumann <daniel.baumann@progress-linux.org>2024-04-27 10:05:51 +0000
committerDaniel Baumann <daniel.baumann@progress-linux.org>2024-04-27 10:05:51 +0000
commit5d1646d90e1f2cceb9f0828f4b28318cd0ec7744 (patch)
treea94efe259b9009378be6d90eb30d2b019d95c194 /include/asm-generic/unaligned.h
parentInitial commit. (diff)
downloadlinux-5d1646d90e1f2cceb9f0828f4b28318cd0ec7744.tar.xz
linux-5d1646d90e1f2cceb9f0828f4b28318cd0ec7744.zip
Adding upstream version 5.10.209.upstream/5.10.209
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
Diffstat (limited to 'include/asm-generic/unaligned.h')
-rw-r--r--include/asm-generic/unaligned.h36
1 files changed, 36 insertions, 0 deletions
diff --git a/include/asm-generic/unaligned.h b/include/asm-generic/unaligned.h
new file mode 100644
index 000000000..374c940e9
--- /dev/null
+++ b/include/asm-generic/unaligned.h
@@ -0,0 +1,36 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+#ifndef __ASM_GENERIC_UNALIGNED_H
+#define __ASM_GENERIC_UNALIGNED_H
+
+/*
+ * This is the most generic implementation of unaligned accesses
+ * and should work almost anywhere.
+ */
+#include <asm/byteorder.h>
+
+/* Set by the arch if it can handle unaligned accesses in hardware. */
+#ifdef CONFIG_HAVE_EFFICIENT_UNALIGNED_ACCESS
+# include <linux/unaligned/access_ok.h>
+#endif
+
+#if defined(__LITTLE_ENDIAN)
+# ifndef CONFIG_HAVE_EFFICIENT_UNALIGNED_ACCESS
+# include <linux/unaligned/le_struct.h>
+# include <linux/unaligned/be_byteshift.h>
+# endif
+# include <linux/unaligned/generic.h>
+# define get_unaligned __get_unaligned_le
+# define put_unaligned __put_unaligned_le
+#elif defined(__BIG_ENDIAN)
+# ifndef CONFIG_HAVE_EFFICIENT_UNALIGNED_ACCESS
+# include <linux/unaligned/be_struct.h>
+# include <linux/unaligned/le_byteshift.h>
+# endif
+# include <linux/unaligned/generic.h>
+# define get_unaligned __get_unaligned_be
+# define put_unaligned __put_unaligned_be
+#else
+# error need to define endianess
+#endif
+
+#endif /* __ASM_GENERIC_UNALIGNED_H */