fb0c3eb5a3
Refreshed all patches. Altered patches: - 816-pcie-support-layerscape.patch Fixes: -CVE-2019-15030 Compile-tested on: cns3xxx, layerscape Runtime-tested on: cns3xxx Signed-off-by: Koen Vandeputte <koen.vandeputte@ncentric.com>
53 lines
1.5 KiB
Diff
53 lines
1.5 KiB
Diff
From 3fe7841bf5a582dc7fd198e5bf70162ea418a22a Mon Sep 17 00:00:00 2001
|
|
From: Koen Vandeputte <koen.vandeputte@ncentric.com>
|
|
Date: Wed, 11 Sep 2019 11:02:19 +0200
|
|
Subject: [PATCH] MIPS: ath79: Fix potentially missed IRQ handling during
|
|
dispatch
|
|
|
|
If both interrupts are set in the current implementation
|
|
only the 1st will be handled and the 2nd will be skipped
|
|
due to the "if else" condition.
|
|
|
|
Fix this by using the same approach as done for QCA955x
|
|
just below it.
|
|
|
|
Fixes: fce5cc6e0ddc ("MIPS: ath79: add IRQ handling code for AR934X")
|
|
Signed-off-by: Koen Vandeputte <koen.vandeputte@ncentric.com>
|
|
CC: Felix Fietkau <nbd@nbd.name>
|
|
CC: Gabor Juhos <juhosg@freemail.hu>
|
|
CC: James Hogan <jhogan@kernel.org>
|
|
CC: Paul Burton <paul.burton@mips.com>
|
|
CC: Ralf Baechle <ralf@linux-mips.org>
|
|
CC: stable@vger.kernel.org # v3.2+
|
|
---
|
|
arch/mips/ath79/irq.c | 12 +++++++++---
|
|
1 file changed, 9 insertions(+), 3 deletions(-)
|
|
|
|
--- a/arch/mips/ath79/irq.c
|
|
+++ b/arch/mips/ath79/irq.c
|
|
@@ -32,15 +32,21 @@ static void ar934x_ip2_irq_dispatch(stru
|
|
u32 status;
|
|
|
|
status = ath79_reset_rr(AR934X_RESET_REG_PCIE_WMAC_INT_STATUS);
|
|
+ status &= AR934X_PCIE_WMAC_INT_PCIE_ALL | AR934X_PCIE_WMAC_INT_WMAC_ALL;
|
|
+
|
|
+ if (status == 0) {
|
|
+ spurious_interrupt();
|
|
+ return;
|
|
+ }
|
|
|
|
if (status & AR934X_PCIE_WMAC_INT_PCIE_ALL) {
|
|
ath79_ddr_wb_flush(3);
|
|
generic_handle_irq(ATH79_IP2_IRQ(0));
|
|
- } else if (status & AR934X_PCIE_WMAC_INT_WMAC_ALL) {
|
|
+ }
|
|
+
|
|
+ if (status & AR934X_PCIE_WMAC_INT_WMAC_ALL) {
|
|
ath79_ddr_wb_flush(4);
|
|
generic_handle_irq(ATH79_IP2_IRQ(1));
|
|
- } else {
|
|
- spurious_interrupt();
|
|
}
|
|
}
|
|
|