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authorMacpaul Lin <macpaul.lin@mediatek.com>2020-06-18 17:13:38 +0800
committerGreg Kroah-Hartman <gregkh@linuxfoundation.org>2021-03-24 11:05:02 +0100
commite93575764f70a5e59813d02a8f7cf7e1497d8185 (patch)
treebc067c18c46d04ea0b88013bd7a00cf07d8288dd /include
parent8ca5de14229b084c5eee88fad56e894c6c1bd059 (diff)
USB: replace hardcode maximum usb string length by definition
commit 81c7462883b0cc0a4eeef0687f80ad5b5baee5f6 upstream. Replace hardcoded maximum USB string length (126 bytes) by definition "USB_MAX_STRING_LEN". Signed-off-by: Macpaul Lin <macpaul.lin@mediatek.com> Acked-by: Alan Stern <stern@rowland.harvard.edu> Link: https://lore.kernel.org/r/1592471618-29428-1-git-send-email-macpaul.lin@mediatek.com Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'include')
-rw-r--r--include/uapi/linux/usb/ch9.h3
1 files changed, 3 insertions, 0 deletions
diff --git a/include/uapi/linux/usb/ch9.h b/include/uapi/linux/usb/ch9.h
index 8512777889b0..4c02fa757af7 100644
--- a/include/uapi/linux/usb/ch9.h
+++ b/include/uapi/linux/usb/ch9.h
@@ -360,6 +360,9 @@ struct usb_config_descriptor {
/*-------------------------------------------------------------------------*/
+/* USB String descriptors can contain at most 126 characters. */
+#define USB_MAX_STRING_LEN 126
+
/* USB_DT_STRING: String descriptor */
struct usb_string_descriptor {
__u8 bLength;