[gpm] Linux device number bug report

WEI Yongjun yjwei@nanjing-fnst.com
Thu Jan 15 09:27:21 CET 2004


Hello,

I have some questions about device number extension.

In Linux kernel 2.6, device number will be extended from 16-bit to 32-bit.
All utilities and libraries should make corresponding extension for this new
feature in kernel 2.6.

I find that "gpm-1.19.3" uses structure dev_t and operates the device number
as 16-bit.
----------------------------------------------------------------------------
--------------
1. gpm-root.c line 49:

#ifdef HAVE_SYS_SYSMACROS_H
#include <sys/sysmacros.h>
#else
#define major(dev) (((unsigned) (dev))>>8)
#define minor(dev) ((dev)&0xff)
#endif


This is a backup for lost of system defined macro major and minor, but all
of these operations
look dev_t as 16 bits instead of 32 bits, so they will call problem when
actually use them.
----------------------------------------------------------------------------
--------------

Since I didn't find any information about this aspect in homepage of this
package, I wonder whether the latest version has completed the device number
extension? If not, will it be completed in the future? And when?

Looking forward to answering.



--------------------------------------------------
Wei Yongjun
Dept. of Technology and Development
Nanjing Fujitsu Nanda Software Tech. Co., Ltd.(FNST)
No. 16-5, Guanzhou Rd., Nanjing, P.R.China
PHONE: +86+25-6630523-633
FUJITSU INTERNAL: 79955-651
FAX: +86+25-3317685
Mail: yjwei@nanjing-fnst.com
--------------------------------------------------



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