serial.c:89:22: sparse: cast truncates bits from constant value (24000000 becomes 0)

Sebastian Andrzej Siewior Mon, 10 Sep 2012 10:05:24 -0700

On 09/10/2012 06:40 PM, Fengguang Wu wrote:

tree:   git://git.kernel.org/pub/scm/linux/kernel/git/balbi/usb.git master
head:   d9c88901337158c9f253a7de58a10b5125d61d26
commit: 7a7322b0a5d984025dd4faea9098b8fef07f8d8f [33/36] usb: gadget: remove 
usb_gadget_controller_number()


All sparse warnings:


Once again, thank you.

   drivers/usb/gadget/f_acm.c:287:9: sparse: advancing past deep designator
   drivers/usb/gadget/f_obex.c:60:9: sparse: advancing past deep designator
   drivers/usb/gadget/f_serial.c:134:9: sparse: advancing past deep designator
   drivers/usb/gadget/serial.c:66:9: sparse: advancing past deep designator


I don't get these. The purpose is an all NULL terminating entry. Could
this be a sparse bug or is the [] / {} switch not really good C code?

+ drivers/usb/gadget/serial.c:89:22: sparse: cast truncates bits from constant 
value (24000000 becomes 0)


I've sent a patch for this.

Sebastian
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Re: [balbi-usb:master 33/36] drivers/usb/gadget/serial.c:89:22: sparse: cast truncates bits from constant value (24000000 becomes 0)

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