Re: port-amd64/51864: unreachable code in ichlpcib

[christos%zoulas.com@localhost (Christos Zoulas)]

On Jan 13,  1:55pm, coypu%sdf.org@localhost (coypu%sdf.org@localhost) wrote:
-- Subject: port-amd64/51864: unreachable code in ichlpcib

| >Number:         51864
| >Category:       port-amd64
| >Synopsis:       unreachable code in ichlpcib
| >Confidential:   no
| >Severity:       serious
| >Priority:       medium
| >Responsible:    port-amd64-maintainer
| >State:          open
| >Class:          sw-bug
| >Submitter-Id:   net
| >Arrival-Date:   Fri Jan 13 13:55:00 +0000 2017
| >Originator:     coypu
| >Release:        NetBSD 7.99.58
| >Organization:
| >Environment:
| NetBSD box 7.99.58 NetBSD 7.99.58 (GENERIC) #0: Thu Jan 12 13:45:00 IST 2017  fly@box:/usr/amd64/sys/arch/amd64/compile/GENERIC amd64
| 
| >Description:
| LPCIB_ICH5_HPTC_WIN_MASK is a problematic choice of mask.
| 
| from sys/dev/ic/i82801lpcreg.h:
| 
|  84 #define LPCIB_ICH5_HPTC_WIN_MASK        0x0000c000                       

While changing the mask to 1c000 will remove the warning, the linux code
is doing something different; see ./arch/x86/kernel/quirks.c

christos