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USB: dummy-hcd: increase max number of devices to 32

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commit 8442b02bf3 upstream.

When fuzzing the USB subsystem with syzkaller, we currently use 8 testing
processes within one VM. To isolate testing processes from one another it
is desirable to assign a dedicated USB bus to each of those, which means
we need at least 8 Dummy UDC/HCD devices.

This patch increases the maximum number of Dummy UDC/HCD devices to 32
(more than 8 in case we need more of them in the future).

Signed-off-by: Andrey Konovalov <andreyknvl@google.com>
Link: https://lore.kernel.org/r/665578f904484069bb6100fb20283b22a046ad9b.1571667489.git.andreyknvl@google.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This commit is contained in:
Andrey Konovalov
2019-10-21 16:20:58 +02:00
committed by Greg Kroah-Hartman
parent 246cd4b0d5
commit edb2aa9301
1 changed files with 1 additions and 1 deletions
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2
drivers/usb/gadget/udc/dummy_hcd.c
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@@ -2725,7 +2725,7 @@ static struct platform_driver dummy_hcd_driver = {
};
/*-------------------------------------------------------------------------*/
#define MAX_NUM_UDC 2
#define MAX_NUM_UDC 32
static struct platform_device *the_udc_pdev[MAX_NUM_UDC];
static struct platform_device *the_hcd_pdev[MAX_NUM_UDC];