[PATCH] usb: mtu3: constify struct debugfs_reg32

From: Rikard Falkeborn
Date: Fri May 08 2020 - 17:44:35 EST


mtu3_prb_regs is never changed and can therefore be made const.

This allows the compiler to put it in the text section instead of the
data section.

Before:
text data bss dec hex filename
19966 7120 0 27086 69ce drivers/usb/mtu3/mtu3_debugfs.o

After:
text data bss dec hex filename
20142 6992 0 27134 69fe drivers/usb/mtu3/mtu3_debugfs.o

Signed-off-by: Rikard Falkeborn <rikard.falkeborn@xxxxxxxxx>
---
drivers/usb/mtu3/mtu3_debugfs.c | 4 ++--
1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/drivers/usb/mtu3/mtu3_debugfs.c b/drivers/usb/mtu3/mtu3_debugfs.c
index c96e5dab0a48..fdeade6254ae 100644
--- a/drivers/usb/mtu3/mtu3_debugfs.c
+++ b/drivers/usb/mtu3/mtu3_debugfs.c
@@ -276,7 +276,7 @@ static const struct file_operations mtu3_ep_fops = {
.release = single_release,
};

-static struct debugfs_reg32 mtu3_prb_regs[] = {
+static const struct debugfs_reg32 mtu3_prb_regs[] = {
dump_prb_reg("enable", U3D_SSUSB_PRB_CTRL0),
dump_prb_reg("byte-sell", U3D_SSUSB_PRB_CTRL1),
dump_prb_reg("byte-selh", U3D_SSUSB_PRB_CTRL2),
@@ -349,7 +349,7 @@ static const struct file_operations mtu3_probe_fops = {
static void mtu3_debugfs_create_prb_files(struct mtu3 *mtu)
{
struct ssusb_mtk *ssusb = mtu->ssusb;
- struct debugfs_reg32 *regs;
+ const struct debugfs_reg32 *regs;
struct dentry *dir_prb;
int i;

--
2.26.2