From 2a07a5ddb135e4bd15bf6468b7d2daa4deeaf07d Mon Sep 17 00:00:00 2001 From: Takashi Iwai Date: Thu, 8 Sep 2022 11:51:09 +0200 Subject: drm/udl: Increase the default URB list size to 20 It seems that the current size (4) for the URB list is too small on some devices, and it resulted in the occasional stalls. Increase the default URB list size to 20 for working around it. Acked-by: Thomas Zimmermann Signed-off-by: Takashi Iwai Signed-off-by: Thomas Zimmermann Link: https://patchwork.freedesktop.org/patch/msgid/20220908095115.23396-7-tiwai@suse.de --- drivers/gpu/drm/udl/udl_main.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/gpu/drm/udl/udl_main.c b/drivers/gpu/drm/udl/udl_main.c index 6aed6e0f669c..2b7eafd48ec2 100644 --- a/drivers/gpu/drm/udl/udl_main.c +++ b/drivers/gpu/drm/udl/udl_main.c @@ -20,7 +20,7 @@ #define NR_USB_REQUEST_CHANNEL 0x12 #define MAX_TRANSFER (PAGE_SIZE*16 - BULK_SIZE) -#define WRITES_IN_FLIGHT (4) +#define WRITES_IN_FLIGHT (20) #define MAX_VENDOR_DESCRIPTOR_SIZE 256 static int udl_parse_vendor_descriptor(struct udl_device *udl) -- cgit v1.2.3-58-ga151