Re: [PATCH] staging: rtl8723bs: Fix uninitialized variable
From: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Date: 2021-06-07 09:23:28
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From: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Date: 2021-06-07 09:23:28
Also in:
lkml
On Mon, Jun 07, 2021 at 11:33:17AM +0300, Dan Carpenter wrote:
Greg asked about struct holes and the answer is "= {}" will zero out
struct holes but it's not important in this case. The "= {}" is a GCC
extension for zeroing structs and it's not part of the C standard.
The struct has a kernel pointer in it so we had better not be shairing
it to user space.
I thought we proved that "= {}" will _NOT_ zero out holes in structures.
Or did we really prove that? I can't remember now, do you?
thanks,
greg k-h