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Message-ID: <Z9dyY7_ydJiGqh_d@kspp>
Date: Mon, 17 Mar 2025 11:22:51 +1030
From: "Gustavo A. R. Silva" <gustavoars@...nel.org>
To: Greg Kroah-Hartman <gregkh@...uxfoundation.org>
Cc: linux-usb@...r.kernel.org, linux-kernel@...r.kernel.org,
"Gustavo A. R. Silva" <gustavoars@...nel.org>,
linux-hardening@...r.kernel.org
Subject: [PATCH][next] usb: gadget: uvc: Avoid -Wflex-array-member-not-at-end
warnings
-Wflex-array-member-not-at-end was introduced in GCC-14, and we are
getting ready to enable it, globally.
Move the conflicting declaration to the end of the structure. Notice
that `struct uvc_input_header_descriptor` is a flexible structure --a
structure that contains a flexible-array member.
With this, fix three of the following warnings:
drivers/usb/gadget/function/uvc_configfs.h:77:57: warning: structure containing a flexible array member is not at the end of another structure [-Wflex-array-member-not-at-end]
Signed-off-by: Gustavo A. R. Silva <gustavoars@...nel.org>
---
drivers/usb/gadget/function/uvc_configfs.h | 4 +++-
1 file changed, 3 insertions(+), 1 deletion(-)
diff --git a/drivers/usb/gadget/function/uvc_configfs.h b/drivers/usb/gadget/function/uvc_configfs.h
index 2f78cd4f396f..9391614135e9 100644
--- a/drivers/usb/gadget/function/uvc_configfs.h
+++ b/drivers/usb/gadget/function/uvc_configfs.h
@@ -74,10 +74,12 @@ static inline struct uvcg_format *to_uvcg_format(struct config_item *item)
struct uvcg_streaming_header {
struct config_item item;
- struct uvc_input_header_descriptor desc;
unsigned linked;
struct list_head formats;
unsigned num_fmt;
+
+ /* Must be last --ends in a flexible-array member. */
+ struct uvc_input_header_descriptor desc;
};
static inline struct uvcg_streaming_header *to_uvcg_streaming_header(struct config_item *item)
--
2.43.0
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