Merge branch 'next' into for-linus

Prepare input updates for 6.18 merge window.

1 files changed, 30 insertions, 0 deletions

diff --git a/drivers/input/input-compat.c b/drivers/input/input-compat.c
index 2ccd3eedbd67..a5043193ead8 100644
--- a/drivers/input/input-compat.c
+++ b/drivers/input/input-compat.c
@@ -6,6 +6,7 @@
  */
 
 #include <linux/export.h>
+#include <linux/sprintf.h>
 #include <linux/uaccess.h>
 #include "input-compat.h"
 
@@ -94,6 +95,28 @@ int input_ff_effect_from_user(const char __user *buffer, size_t size,
 	return 0;
 }
 
+int input_bits_to_string(char *buf, int buf_size, unsigned long bits,
+			 bool skip_empty)
+{
+	int len = 0;
+
+	if (in_compat_syscall()) {
+		u32 dword = bits >> 32;
+		if (dword || !skip_empty)
+			len += snprintf(buf, buf_size, "%x ", dword);
+
+		dword = bits & 0xffffffffUL;
+		if (dword || !skip_empty || len)
+			len += snprintf(buf + len, max(buf_size - len, 0),
+					"%x", dword);
+	} else {
+		if (bits || !skip_empty)
+			len += snprintf(buf, buf_size, "%lx", bits);
+	}
+
+	return len;
+}
+
 #else
 
 int input_event_from_user(const char __user *buffer,
@@ -126,6 +149,13 @@ int input_ff_effect_from_user(const char __user *buffer, size_t size,
 	return 0;
 }
 
+int input_bits_to_string(char *buf, int buf_size, unsigned long bits,
+			 bool skip_empty)
+{
+	return bits || !skip_empty ?
+		snprintf(buf, buf_size, "%lx", bits) : 0;
+}
+
 #endif /* CONFIG_COMPAT */
 
 EXPORT_SYMBOL_GPL(input_event_from_user);