diff options
| author | Alan Stern <stern@rowland.harvard.edu> | 2011-10-27 11:20:21 -0400 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@suse.de> | 2011-11-26 09:10:02 -0800 |
| commit | 3d396a3b21f381ffb651f481252508243c0325a6 (patch) | |
| tree | bd23e1a5f659c3a42420fc4ef787c234b1ab9556 /drivers/usb | |
| parent | bbf54d177037d268d9a744ee4c2add570ba8a9ad (diff) | |
| download | kernel_samsung_crespo-3d396a3b21f381ffb651f481252508243c0325a6.zip kernel_samsung_crespo-3d396a3b21f381ffb651f481252508243c0325a6.tar.gz kernel_samsung_crespo-3d396a3b21f381ffb651f481252508243c0325a6.tar.bz2 | |
USB: workaround for bug in old version of GCC
commit 97ff22ee3b4cb3a334f7385e269773141aed702f upstream.
This patch (as1491) works around a bug in GCC-3.4.6, which is still
supposed to be supported. The number of microseconds in the udelay()
call in quirk_usb_disable_ehci() is fixed at 100, but the compiler
doesn't understand this and generates a link-time error. So we
replace the otherwise unused variable "delta" with a simple constant
100. This same pattern is already used in other delay loops in that
source file.
Signed-off-by: Alan Stern <stern@rowland.harvard.edu>
Reported-by: Konrad Rzepecki <krzepecki@dentonet.pl>
Tested-by: Konrad Rzepecki <krzepecki@dentonet.pl>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
Diffstat (limited to 'drivers/usb')
| -rw-r--r-- | drivers/usb/host/pci-quirks.c | 7 |
1 files changed, 3 insertions, 4 deletions
diff --git a/drivers/usb/host/pci-quirks.c b/drivers/usb/host/pci-quirks.c index 629a968..a495d48 100644 --- a/drivers/usb/host/pci-quirks.c +++ b/drivers/usb/host/pci-quirks.c @@ -626,7 +626,7 @@ static void __devinit quirk_usb_disable_ehci(struct pci_dev *pdev) void __iomem *base, *op_reg_base; u32 hcc_params, cap, val; u8 offset, cap_length; - int wait_time, delta, count = 256/4; + int wait_time, count = 256/4; if (!mmio_resource_enabled(pdev, 0)) return; @@ -672,11 +672,10 @@ static void __devinit quirk_usb_disable_ehci(struct pci_dev *pdev) writel(val, op_reg_base + EHCI_USBCMD); wait_time = 2000; - delta = 100; do { writel(0x3f, op_reg_base + EHCI_USBSTS); - udelay(delta); - wait_time -= delta; + udelay(100); + wait_time -= 100; val = readl(op_reg_base + EHCI_USBSTS); if ((val == ~(u32)0) || (val & EHCI_USBSTS_HALTED)) { break; |