Bug 52534

Summary:	ppc64-sources-2.6.6-r0 warnings: cast from different size pointers
Product:	Gentoo Linux	Reporter:	Philippe Trottier (RETIRED) <tchiwam>
Component:	[OLD] Core system	Assignee:	ppc64 architecture team <ppc64>
Status:	VERIFIED WONTFIX
Severity:	normal
Priority:	High
Version:	2004.1
Hardware:	PPC64
OS:	Linux
Whiteboard:
Package list:		Runtime testing required:	---
Attachments:	Log from kernel make

Description Philippe Trottier (RETIRED) gentoo-dev

2004-05-31 02:53:42 UTC

I have noticed these warnings while compile the kernel...

this is something I am usually scared of as it might break stuff in not so easy to find way. and there is quite many like that... in the kernel

Where can it be bad, many programmer make a nice struct to make it easy to load set and get information from hardware, that is good ... they sometimes use long instead of int for 32bit fields and that is bad, or again worst use for example (char *) in their pointers read the whole struct at once from an hardware device... fine if the pointer is 32bit, but we have here 64bit pointers, normally the hardware don't really know about the cpu being 64 or 32 bits.

We should at least check all of them and make sure they don't break and are just that, innofencive warnings.

I hope this helps.

Comment 1 Philippe Trottier (RETIRED) gentoo-dev

2004-05-31 02:55:15 UTC

Created attachment 32373 [details]
Log from kernel make

Comment 2 Tom Gall (RETIRED) gentoo-dev

2004-06-02 19:15:03 UTC

 noted ...  don't plan to do much about it ....

Comment 3 Tom Gall (RETIRED) gentoo-dev

2004-06-12 21:52:05 UTC

sticking a fork in it