From: Alan Stern <stern@rowland.harvard.edu>
Date: Fri, 11 Aug 2023 17:47:04 +0000 (-0400)
Subject: USB: gadget: f_mass_storage: Fix unused variable warning
X-Git-Url: http://git.osdn.net/view?a=commitdiff_plain;h=55c3e571d2a0aabef4f1354604443f1c415d2e85;p=tomoyo%2Ftomoyo-test1.git

USB: gadget: f_mass_storage: Fix unused variable warning

Fix a "variable set but not used" warning in f_mass_storage.c.  rc is
used if	verbose debugging is enabled but not otherwise.

Signed-off-by: Alan Stern <stern@rowland.harvard.edu>
Fixes: d5e2b67aae79 ("USB: g_mass_storage: template f_mass_storage.c file created")
Link: https://lore.kernel.org/r/cfed16c7-aa46-494b-ba84-b0e0dc99be3a@rowland.harvard.edu
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---

diff --git a/drivers/usb/gadget/function/f_mass_storage.c b/drivers/usb/gadget/function/f_mass_storage.c
index da07e45ae6df..722a3ab2b337 100644
--- a/drivers/usb/gadget/function/f_mass_storage.c
+++ b/drivers/usb/gadget/function/f_mass_storage.c
@@ -927,7 +927,7 @@ static void invalidate_sub(struct fsg_lun *curlun)
 {
 	struct file	*filp = curlun->filp;
 	struct inode	*inode = file_inode(filp);
-	unsigned long	rc;
+	unsigned long __maybe_unused	rc;
 
 	rc = invalidate_mapping_pages(inode->i_mapping, 0, -1);
 	VLDBG(curlun, "invalidate_mapping_pages -> %ld\n", rc);