From f12ebeaa45491a6271cd633d3ca75f3210e27fcb Mon Sep 17 00:00:00 2001 From: Lukasz Majewski Date: Tue, 10 May 2016 11:10:37 +0200 Subject: [PATCH] usb: dwc3: Change addr and length declaration to long at dwc3_flush_cache() function In the dwc3 driver, calls of dwc3_flush_cache() pass addr and length as longs. Unfortunately, this function converts long on 64 bit machines to 32 bit int. This causes "Synchronous Abort" exceptions on 64 bit machines. To alleviate this problem we accept long arguments to dwc3_flush_cache() and then explicitly covert them to unsigned types required by flush_dcache_range(). Signed-off-by: Lukasz Majewski --- drivers/usb/dwc3/io.h | 6 ++++-- 1 file changed, 4 insertions(+), 2 deletions(-) diff --git a/drivers/usb/dwc3/io.h b/drivers/usb/dwc3/io.h index 0d9fa220e9..3e7d941858 100644 --- a/drivers/usb/dwc3/io.h +++ b/drivers/usb/dwc3/io.h @@ -48,8 +48,10 @@ static inline void dwc3_writel(void __iomem *base, u32 offset, u32 value) writel(value, base + offs); } -static inline void dwc3_flush_cache(int addr, int length) +static inline void dwc3_flush_cache(long addr, long length) { - flush_dcache_range(addr, addr + ROUND(length, CACHELINE_SIZE)); + flush_dcache_range((unsigned long) addr, + (unsigned long) addr + + ROUND(length, CACHELINE_SIZE)); } #endif /* __DRIVERS_USB_DWC3_IO_H */ -- 2.34.1