mirror of
https://github.com/openwrt/openwrt.git
synced 2024-12-23 15:32:33 +00:00
39 lines
1.7 KiB
Diff
39 lines
1.7 KiB
Diff
|
From 39192141aa16809323c24d8910e3a63488f7f55d Mon Sep 17 00:00:00 2001
|
||
|
|
From: Marek Szyprowski <m.szyprowski@samsung.com>
|
||
|
|
Date: Thu, 27 Feb 2020 12:51:46 +0100
|
||
|
|
Subject: [PATCH] PCI: brcmstb: Fix build on 32bit ARM platforms with
|
||
|
|
older compilers
|
||
|
|
|
||
|
|
commit 73a7a271b3eee7b83f29b13866163776f1cbef89 upstream.
|
||
|
|
|
||
|
|
Some older compilers have no implementation for the helper for 64-bit
|
||
|
|
unsigned division/modulo, so linking pcie-brcmstb driver causes the
|
||
|
|
"undefined reference to `__aeabi_uldivmod'" error.
|
||
|
|
|
||
|
|
*rc_bar2_size is always a power of two, because it is calculated as:
|
||
|
|
"1ULL << fls64(entry->res->end - entry->res->start)", so the modulo
|
||
|
|
operation in the subsequent check can be replaced by a simple logical
|
||
|
|
AND with a proper mask.
|
||
|
|
|
||
|
|
Link: https://lore.kernel.org/r/20200227115146.24515-1-m.szyprowski@samsung.com
|
||
|
|
Fixes: c0452137034b ("PCI: brcmstb: Add Broadcom STB PCIe host controller driver")
|
||
|
|
Signed-off-by: Marek Szyprowski <m.szyprowski@samsung.com>
|
||
|
|
Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
|
||
|
|
Acked-by: Nicolas Saenz Julienne <nsaenzjulienne@suse.de>
|
||
|
|
Acked-by: Lorenzo Pieralisi <lorenzo.pieralisi@arm.com>
|
||
|
|
---
|
||
|
|
drivers/pci/controller/pcie-brcmstb.c | 2 +-
|
||
|
|
1 file changed, 1 insertion(+), 1 deletion(-)
|
||
|
|
|
||
|
|
--- a/drivers/pci/controller/pcie-brcmstb.c
|
||
|
|
+++ b/drivers/pci/controller/pcie-brcmstb.c
|
||
|
|
@@ -670,7 +670,7 @@ static inline int brcm_pcie_get_rc_bar2_
|
||
|
|
* outbound memory @ 3GB). So instead it will start at the 1x
|
||
|
|
* multiple of its size
|
||
|
|
*/
|
||
|
|
- if (!*rc_bar2_size || *rc_bar2_offset % *rc_bar2_size ||
|
||
|
|
+ if (!*rc_bar2_size || (*rc_bar2_offset & (*rc_bar2_size - 1)) ||
|
||
|
|
(*rc_bar2_offset < SZ_4G && *rc_bar2_offset > SZ_2G)) {
|
||
|
|
dev_err(dev, "Invalid rc_bar2_offset/size: size 0x%llx, off 0x%llx\n",
|
||
|
|
*rc_bar2_size, *rc_bar2_offset);
|