"Brent M. Smith" wrote:
> Sorry, forgot to put you on the cc list :)
> ---------- Forwarded message ----------
> Date: Sat, 12 Feb 2000 12:45:30 -0800 (PST)
> From: Brent M. Smith <firstname.lastname@example.org>
> To: email@example.com
> Subject: 2.3.44: SCSI problems with CONFIG_SD_EXTRA_DEVS...
> There's a slight dependency issue with the new CONFIG_S[GDTR]_EXTRA_DEVS
> defines in the scsi stuff...
> check it:
> [make modules...]
> ld -m elf_i386 -r -o sr_mod.o sr.o sr_ioctl.o sr_vendor.o
> gcc -D__KERNEL__ -I/usr/src/linux/include -Wall -Wstrict-prototypes -O2
> -fomit-frame-pointer -fno-strict-aliasing -pipe
> -mpreferred-stack-boundary=2 -DCPU=586 -march=k6 -DMODULE -c -o sg.o
> sg.c: In function `sg_init':
> sg.c:1092: `CONFIG_SD_EXTRA_DEVS' undeclared (first use in this function)
> sg.c:1092: (Each undeclared identifier is reported only once
> sg.c:1092: for each function it appears in.)
> sg.c:1073: warning: `size' might be used uninitialized in this function
> make: *** [sg.o] Error 1
> make: Leaving directory `/usr/src/linux-2.3.44/drivers/scsi'
> make: *** [_modsubdir_scsi] Error 2
> make: Leaving directory `/usr/src/linux-2.3.44/drivers'
> make: *** [_mod_drivers] Error 2
> Ok, well let's take a look at line 1092 in sg.c in .../drivers/scsi/...
> 1090: SCSI_LOG_TIMEOUT(3, printk("sg_init\n"));
> 1091: size = sizeof(Sg_device) *
> 1092: (sg_template.dev_noticed + SG_EXTRA_DEVS);
> 1093: sg_dev_arr = (Sg_device *)kmalloc(size, GFP_ATOMIC);
> 1094: memset(sg_dev_arr, 0, size);
> SG_EXTRA_DEVS is defined in hosts.h:
> 507: #define SD_EXTRA_DEVS CONFIG_SD_EXTRA_DEVS
> 508: #define ST_EXTRA_DEVS CONFIG_ST_EXTRA_DEVS
> 509: #define SR_EXTRA_DEVS CONFIG_SR_EXTRA_DEVS
> 510: #define SG_EXTRA_DEVS (SD_EXTRA_DEVS + SR_EXTRA_DEVS + ST_EXTRA_DEVS)
> Now, the define CONFIG_SD_EXTRA_DEVS depends on whether or not I want
> to include SCSI disk support... If i don't define CONFIG_BLK_DEV_SD,
> then I don't get the option of choosing how many extra disk devices I
> want, and CONFIG_SD_EXTRA_DEVS doesn't get defined in my .config...
> I'm not sure exactly what the fix is... I was trying to compile scsi
> emulation for my cdr drive, and I usually never compile in scsi disk
> support... Is it required to do this now?
> It is ok to define CONFIG_SD_EXTRA_DEVS when I don't have disk support
> compiled in? I'm not sure what the right fix is for this... the scsi code
> may need to be modified, or the Config.in script may need to be
You analysis is 100% correct. Due to the number of changes
in the scsi subsystem the mid-level and the upper-level
driver changes are all being synchronized via Eric Youngdale
who seems to be having a "Linux free" weekend :-)
Hopefully this will be fixed shortly.
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