usb: dwc2: hcd_queue: Fix use of floating point literal

stable inclusion
from stable-v5.10.83
commit 2b7ab82f51736a8550a3b4248054ca8042c57869
bugzilla: 185879 https://gitee.com/openeuler/kernel/issues/I4QUVG

Reference: https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git/commit/?id=2b7ab82f51736a8550a3b4248054ca8042c57869

--------------------------------

commit 310780e8 upstream.

A new commit in LLVM causes an error on the use of 'long double' when
'-mno-x87' is used, which the kernel does through an alias,
'-mno-80387' (see the LLVM commit below for more details around why it
does this).

 drivers/usb/dwc2/hcd_queue.c:1744:25: error: expression requires  'long double' type support, but target 'x86_64-unknown-linux-gnu' does not support it
                         delay = ktime_set(0, DWC2_RETRY_WAIT_DELAY);
                                             ^
 drivers/usb/dwc2/hcd_queue.c:62:34: note: expanded from macro 'DWC2_RETRY_WAIT_DELAY'
 #define DWC2_RETRY_WAIT_DELAY (1 * 1E6L)
                                 ^
 1 error generated.

This happens due to the use of a 'long double' literal. The 'E6' part of
'1E6L' causes the literal to be a 'double' then the 'L' suffix promotes
it to 'long double'.

There is no visible reason for a floating point value in this driver, as
the value is only used as a parameter to a function that expects an
integer type. Use NSEC_PER_MSEC, which is the same integer value as
'1E6L', to avoid changing functionality but fix the error.

Link: https://github.com/ClangBuiltLinux/linux/issues/1497
Link: https://github.com/llvm/llvm-project/commit/a8083d42b1c346e21623a1d36d1f0cadd7801d83
Fixes: 6ed30a7d ("usb: dwc2: host: use hrtimer for NAK retries")
Cc: stable <stable@vger.kernel.org>
Reviewed-by: NNick Desaulniers <ndesaulniers@google.com>
Reviewed-by: NJohn Keeping <john@metanate.com>
Acked-by: NMinas Harutyunyan <Minas.Harutyunyan@synopsys.com>
Signed-off-by: NNathan Chancellor <nathan@kernel.org>
Link: https://lore.kernel.org/r/20211105145802.2520658-1-nathan@kernel.orgSigned-off-by: NGreg Kroah-Hartman <gregkh@linuxfoundation.org>
Signed-off-by: NChen Jun <chenjun102@huawei.com>
Signed-off-by: NZheng Zengkai <zhengzengkai@huawei.com>

drivers/usb/dwc2/hcd_queue.c

@@ -59,7 +59,7 @@
 #define DWC2_UNRESERVE_DELAY (msecs_to_jiffies(5))
 
 /* If we get a NAK, wait this long before retrying */
-#define DWC2_RETRY_WAIT_DELAY 1*1E6L
+#define DWC2_RETRY_WAIT_DELAY (1 * NSEC_PER_MSEC)
 
 /**
  * dwc2_periodic_channel_available() - Checks that a channel is available for a