diff options
Diffstat (limited to 'target/linux/generic/pending-4.14/343-MIPS-ath79-Fix-potentially-missed-IRQ-handling-durin.patch')
| -rw-r--r-- | target/linux/generic/pending-4.14/343-MIPS-ath79-Fix-potentially-missed-IRQ-handling-durin.patch | 57 |
1 files changed, 0 insertions, 57 deletions
diff --git a/target/linux/generic/pending-4.14/343-MIPS-ath79-Fix-potentially-missed-IRQ-handling-durin.patch b/target/linux/generic/pending-4.14/343-MIPS-ath79-Fix-potentially-missed-IRQ-handling-durin.patch deleted file mode 100644 index b1389bc28d..0000000000 --- a/target/linux/generic/pending-4.14/343-MIPS-ath79-Fix-potentially-missed-IRQ-handling-durin.patch +++ /dev/null @@ -1,57 +0,0 @@ -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(-) - -diff --git a/arch/mips/ath79/irq.c b/arch/mips/ath79/irq.c -index 2dfff1f19004..a03a6bcaf6fd 100644 ---- a/arch/mips/ath79/irq.c -+++ b/arch/mips/ath79/irq.c -@@ -32,15 +32,21 @@ static void ar934x_ip2_irq_dispatch(struct irq_desc *desc) - 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(); - } - } - --- -2.17.1 - |