1 files changed, 0 insertions, 45 deletions
diff --git a/target/linux/brcm2708/patches-4.14/950-0207-dwc_otg-add-smp_mb-to-prevent-driver-state-corruptio.patch b/target/linux/brcm2708/patches-4.14/950-0207-dwc_otg-add-smp_mb-to-prevent-driver-state-corruptio.patch
deleted file mode 100644
index 7e49003c2d..0000000000
--- a/target/linux/brcm2708/patches-4.14/950-0207-dwc_otg-add-smp_mb-to-prevent-driver-state-corruptio.patch
+++ /dev/null
@@ -1,45 +0,0 @@
-From efdde709efccc4f95c7641eea8960dbc31fc58b5 Mon Sep 17 00:00:00 2001
-From: P33M <p33m@github.com>
-Date: Thu, 15 Feb 2018 11:22:44 +0000
-Subject: [PATCH 207/454] dwc_otg: add smp_mb() to prevent driver state
- corruption on boot
-
-Occasional crashes have been seen where the FIQ code dereferences
-invalid/random pointers immediately after being set up, leading to
-panic on boot.
-
-The crash occurs as the FIQ code races against hcd_init_fiq() and
-the hcd_init_fiq() code races against the outstanding memory stores
-from dwc_otg_hcd_init(). Use explicit barriers after touching
-driver state.
----
- drivers/usb/host/dwc_otg/dwc_otg_hcd_linux.c | 11 ++++++++++-
- 1 file changed, 10 insertions(+), 1 deletion(-)
-
---- a/drivers/usb/host/dwc_otg/dwc_otg_hcd_linux.c
-+++ b/drivers/usb/host/dwc_otg/dwc_otg_hcd_linux.c
-@@ -519,6 +519,11 @@ static void hcd_init_fiq(void *cookie)
- 		DWC_ERROR("Can't get FIQ irq");
- 		return;
- 	}
-+	/*
-+	 * We could take an interrupt immediately after enabling the FIQ.
-+	 * Ensure coherency of hcd->fiq_state.
-+	 */
-+	smp_mb();
- 	enable_fiq(irq);
- 	local_fiq_enable();
- #endif
-@@ -598,7 +603,11 @@ int hcd_init(dwc_bus_dev_t *_dev)
- 
- 	if (fiq_enable) {
- 		if (num_online_cpus() > 1) {
--			/* bcm2709: can run the FIQ on a separate core to IRQs */
-+			/*
-+			 * bcm2709: can run the FIQ on a separate core to IRQs.
-+			 * Ensure driver state is visible to other cores before setting up the FIQ.
-+			 */
-+			smp_mb();
- 			smp_call_function_single(1, hcd_init_fiq, otg_dev, 1);
- 		} else {
- 			smp_call_function_single(0, hcd_init_fiq, otg_dev, 1);