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hw/usb/quirks: Use smaller types to reduce .rodata by 10KiB

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The USB descriptor sizes are specified as 16-bit for idVendor /
idProduct, and 8-bit for bInterfaceClass / bInterfaceSubClass /
bInterfaceProtocol. Doing so we reduce the usbredir_raw_serial_ids[]
and usbredir_ftdi_serial_ids[] arrays from 16KiB to 6KiB (size
reported on x86_64 host, building with --extra-cflags=-Os).

Signed-off-by: Philippe Mathieu-Daudé <philmd@redhat.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
This commit is contained in:
Philippe Mathieu-Daudé 2020-03-05 13:45:22 +01:00 committed by Paolo Bonzini
parent a9d8ba2be5
commit 092b6d1e88
2 changed files with 15 additions and 11 deletions
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4
hw/usb/quirks.c
View file

@ -22,10 +22,10 @@ static bool usb_id_match(const struct usb_device_id *ids,
uint8_t interface_protocol) {
int i;
for (i = 0; ids[i].vendor_id != -1; i++) {
for (i = 0; ids[i].terminating_entry == 0; i++) {
if (ids[i].vendor_id == vendor_id &&
ids[i].product_id == product_id &&
(ids[i].interface_class == -1 ||
(ids[i].interface_protocol_used == 0 ||
(ids[i].interface_class == interface_class &&
ids[i].interface_subclass == interface_subclass &&
ids[i].interface_protocol == interface_protocol))) {

22
hw/usb/quirks.h
View file

@ -21,19 +21,23 @@
#include "quirks-pl2303-ids.h"
struct usb_device_id {
int vendor_id;
int product_id;
int interface_class;
int interface_subclass;
int interface_protocol;
uint16_t vendor_id;
uint16_t product_id;
uint8_t interface_class;
uint8_t interface_subclass;
uint8_t interface_protocol;
uint8_t interface_protocol_used:1,
terminating_entry:1,
reserved:6;
};
#define USB_DEVICE(vendor, product) \
.vendor_id = vendor, .product_id = product, .interface_class = -1,
.vendor_id = vendor, .product_id = product, .interface_protocol_used = 0,
#define USB_DEVICE_AND_INTERFACE_INFO(vend, prod, iclass, isubclass, iproto) \
.vendor_id = vend, .product_id = prod, .interface_class = iclass, \
.interface_subclass = isubclass, .interface_protocol = iproto
.interface_subclass = isubclass, .interface_protocol = iproto, \
.interface_protocol_used = 1
static const struct usb_device_id usbredir_raw_serial_ids[] = {
/*
@ -206,7 +210,7 @@ static const struct usb_device_id usbredir_raw_serial_ids[] = {
{ USB_DEVICE(ADLINK_VENDOR_ID, ADLINK_ND6530_PRODUCT_ID) },
{ USB_DEVICE(SMART_VENDOR_ID, SMART_PRODUCT_ID) },
{ USB_DEVICE(-1, -1) } /* Terminating Entry */
{ .terminating_entry = 1 } /* Terminating Entry */
};
static const struct usb_device_id usbredir_ftdi_serial_ids[] = {
@ -906,7 +910,7 @@ static const struct usb_device_id usbredir_ftdi_serial_ids[] = {
{ USB_DEVICE(FTDI_VID, FTDI_DISTORTEC_JTAG_LOCK_PICK_PID) },
{ USB_DEVICE(FTDI_VID, FTDI_LUMEL_PD12_PID) },
{ USB_DEVICE(-1, -1) } /* Terminating Entry */
{ .terminating_entry = 1 } /* Terminating Entry */
};
#undef USB_DEVICE