From: Bharat Kumar Gogada <bharat.kumar.gogada@xilinx.com>
To: <bhelgaas@google.com>, <lorenzo.pieralisi@arm.com>
Cc: <linux-pci@vger.kernel.org>,
<linux-arm-kernel@lists.infradead.org>,
<linux-kernel@vger.kernel.org>,
Bharat Kumar Gogada <bharat.kumar.gogada@xilinx.com>
Subject: [PATCH] PCI: xilinx-nwl: Fix Multi MSI data programming
Date: Wed, 13 Feb 2019 19:55:39 +0530 [thread overview]
Message-ID: <1550067939-9859-1-git-send-email-bharat.kumar.gogada@xilinx.com> (raw)
The current Multi MSI data programming fails if a
end point is connected with switch.
Fix Multi MSI data, by programming data with required alignment.
Signed-off-by: Bharat Kumar Gogada <bharat.kumar.gogada@xilinx.com>
---
drivers/pci/controller/pcie-xilinx-nwl.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/drivers/pci/controller/pcie-xilinx-nwl.c b/drivers/pci/controller/pcie-xilinx-nwl.c
index 81538d7..36669c5 100644
--- a/drivers/pci/controller/pcie-xilinx-nwl.c
+++ b/drivers/pci/controller/pcie-xilinx-nwl.c
@@ -484,7 +484,7 @@ static int nwl_irq_domain_alloc(struct irq_domain *domain, unsigned int virq,
mutex_lock(&msi->lock);
bit = bitmap_find_next_zero_area(msi->bitmap, INT_PCI_MSI_NR, 0,
- nr_irqs, 0);
+ nr_irqs, nr_irqs - 1);
if (bit >= INT_PCI_MSI_NR) {
mutex_unlock(&msi->lock);
return -ENOSPC;
--
2.7.4
next reply other threads:[~2019-02-13 14:26 UTC|newest]
Thread overview: 3+ messages / expand[flat|nested] mbox.gz Atom feed top
2019-02-13 14:25 Bharat Kumar Gogada [this message]
2019-02-13 16:40 ` Lorenzo Pieralisi
2019-02-14 11:30 ` Bharat Kumar Gogada
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