Re: Linux 2.4.21-rc2

From: Jerome Chantelauze (jerome.chantelauze@finix.eu.org)
Date: Mon May 12 2003 - 16:25:46 EST

On Thu, May 08, 2003 at 10:15:12PM -0300, Marcelo Tosatti wrote:
>
> Hi,
>
> Here goes release canditate 2. The aic7xxx problems should be fixed.

Hi Marcello

Here is a patch I sent to lkml a few days ago. It tries to fix a problem
with 2.4.21-rc1 ide driver Makefile.

drivers/ide/Makefile is broken on 2.4.21-rc2 (it's broken at least since
2.4.421-pre6. 2.4.20 is OK).

I try to build a kernel with Old hard disk (MFM/RLL/IDE) support only
(I don't need the Enhanced IDE/MFM/RLL disk/cdrom/tape/floppy support).

Here is my .config:

#
# ATA/IDE/MFM/RLL support
#
CONFIG_IDE=y

#
# IDE, ATA and ATAPI Block devices
#
# CONFIG_BLK_DEV_IDE is not set
CONFIG_BLK_DEV_HD_ONLY=y
CONFIG_BLK_DEV_HD=y
CONFIG_IDEDMA_AUTO=y
# CONFIG_IDEDMA_IVB is not set
# CONFIG_DMA_NONPCI is not set
CONFIG_BLK_DEV_PDC202XX=y
CONFIG_BLK_DEV_IDE_MODES=y
# CONFIG_BLK_DEV_ATARAID is not set
# CONFIG_BLK_DEV_ATARAID_PDC is not set
# CONFIG_BLK_DEV_ATARAID_HPT is not set
# CONFIG_BLK_DEV_ATARAID_SII is not set

The resulting kernel has no support for ide hard disks:

# ls -l drivers/ide/*.o
-rw-r--r-- 1 root root 8 apr 23 08:56 drivers/ide/idedriver.o
#

The following patch fixes the problem for the x86 arch (sorry, I have no
access to other archs).

*** linux-2.4.21-rc1/drivers/ide/Makefile.orig Wed Apr 23 08:45:48 2003
--- linux-2.4.21-rc1/drivers/ide/Makefile Wed Apr 23 09:20:14 2003
***************
*** 21,26 ****
--- 21,28 ----
  
  subdir-$(CONFIG_BLK_DEV_IDE) += legacy ppc arm raid pci
  
+ subdir-$(CONFIG_BLK_DEV_HD_ONLY) += legacy
+
  # First come modules that register themselves with the core
  
  ifeq ($(CONFIG_BLK_DEV_IDE),y)
***************
*** 50,55 ****
--- 52,60 ----
    obj-y += arm/idedriver-arm.o
  endif
  
+ ifeq ($(CONFIG_BLK_DEV_HD_ONLY),y)
+ obj-y += legacy/idedriver-legacy.o
+ endif
  
  ifeq ($(CONFIG_BLK_DEV_IDE),y)
  # RAID must be last of all

I used a x86 computer running a debian woody (gcc 2.95.4, glibc 2.2.5)
to build the kernel.

Regards 

--
Jerome Chantelauze
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