Re: linux 2.5.25

Re: linux 2.5.25

[Ivan Gyurdiev]

2.5.25: 2 problems found

1) Options under Input Device Support and under Character Devices: Mice
are duplicates from a user's point of view. Fortunately they have different 
names (CONFIG_PSMOUSE vs CONFIG_MOUSE_PS2).
Unfortunately they both seem to be used...did a recursive grep.


2)  This is a compilation error, which has been in 2.5 since 3 kernels ago or 
so. Reported twice on LKML by me, as well as another person. No reply. 

mpparse.c: In function `mp_parse_prt':
mpparse.c:1080: warning: implicit declaration of function `mp_find_ioapic'
mpparse.c:1083: `mp_ioapic_routing' undeclared (first use in this function)
mpparse.c:1083: (Each undeclared identifier is reported only once
mpparse.c:1083: for each function it appears in.)
mpparse.c:1107: warning: implicit declaration of function 
`io_apic_set_pci_routing'
make[1]: *** [mpparse.o] Error 1
make[1]: Leaving directory `/usr/src/linux-2.5.24/arch/i386/kernel'
make: *** [arch/i386/kernel] Error 2

occurs with: 
LOCAL_APIC on, IOAPIC off, ACPI on, uniprocessor machine.

Re: linux 2.5.25 (different compilation errors)

[Ivan Gyurdiev]

Hmm. Haven't received this message. Reading it on LKML.
Please cc, I'm not subscribed.


> iforce-packets.c:252: `IFORCE_USB' undeclared (first use in this function)
> iforce-packets.c:252: (Each undeclared identifier is reported only once
> iforce-packets.c:252: for each function it appears in.)
> iforce-packets.c:282: `IFORCE_232' undeclared (first use in this function)
> iforce-packets.c:278: warning: unreachable code at beginning of switch
> statement

Well, obviously the construct


switch (iforce->bus)

case CONSTANT:

#ifdef CONSTANT
do stuff
#endif

will not work.

Why is all this #ifdef mess necessary.
Those are recognition constants.
How can you compare iforce->bus to IFORCE_USB or IFORCE_232
if those are only defined sometimes, based on config options...

Why not just...
#if defined(CONFIG_JOYSTICK_IFORCE_232)
#define IFORCE_232      1
#endif
#if defined(CONFIG_JOYSTICK_IFORCE_USB)
#define IFORCE_USB      2
#endif

drop the if statements and always define the constants.
The code will get much simpler IMHO.

===========================================

> zr36120.c:1497: unknown field `open' specified in initializer 
zr36120.c:1497: warning: initialization makes integer from pointer without a 
cast zr36120.c:1498: unknown field `close' specified in initializer 
zr36120.c:1498: warning: initialization from incompatible pointer type
>
> [SNIP]
>
> zr36120.c:1839: unknown field `minor' specified in initializer make[3]: *** 
[zr36120.o] Error 1

Here's what I found in the 2.4 videodev.h:
   /* old, obsolete interface -- dropped in 2.5.x, don't use it */
        int (*open)(struct video_device *, int mode);
        void (*close)(struct video_device *);
...
 /* new interface -- we will use file_operations directly
         * like soundcore does.
         * kernel_ioctl() will be called by video_generic_ioctl.
         * video_generic_ioctl() does the userspace copying of the
         * ioctl arguments */

============================================

Re: linux 2.5.25 (different compilation errors)

[Fabio Massimo Di Nitto]

Hi all,
            some small other problems.

make dep claims that i2c-old.h is missing. (also in 2.5.24, not tested 
in other versions)

----

  gcc -Wp,-MD,./.iforce-packets.o.d -D__KERNEL__ 
-I/usr/src/linux-2.5.25/include -Wall -Wstrict-prototypes -Wno-trigraphs 
-O2 -fomit-frame-pointer -fno-strict-aliasing -fno-common -pipe 
-mpreferred-stack-boundary=2 -march=i686 -nostdinc -iwithprefix include 
-DMODULE -include /usr/src/linux-2.5.25/include/linux/modversions.h   
-DKBUILD_BASENAME=iforce_packets   -c -o iforce-packets.o iforce-packets.c
iforce-packets.c: In function `iforce_get_id_packet':
iforce-packets.c:252: `IFORCE_USB' undeclared (first use in this function)
iforce-packets.c:252: (Each undeclared identifier is reported only once
iforce-packets.c:252: for each function it appears in.)
iforce-packets.c:282: `IFORCE_232' undeclared (first use in this function)
iforce-packets.c:278: warning: unreachable code at beginning of switch 
statement
iforce-packets.c:248: warning: unused variable `timeout'
iforce-packets.c:247: warning: unused variable `wait'
make[4]: *** [iforce-packets.o] Error 1
make[4]: Leaving directory 
`/usr/src/linux-2.5.25/drivers/input/joystick/iforce'

----

  gcc -Wp,-MD,./.zr36120.o.d -D__KERNEL__ 
-I/usr/src/linux-2.5.25/include -Wall -Wstrict-prototypes -Wno-trigraphs 
-O2 -fomit-frame-pointer -fno-strict-aliasing -fno-common -pipe 
-mpreferred-stack-boundary=2 -march=i686 -nostdinc -iwithprefix include 
-DMODULE -include /usr/src/linux-2.5.25/include/linux/modversions.h   
-DKBUILD_BASENAME=zr36120   -c -o zr36120.o zr36120.c
zr36120.c:1497: unknown field `open' specified in initializer
zr36120.c:1497: warning: initialization makes integer from pointer 
without a cast
zr36120.c:1498: unknown field `close' specified in initializer
zr36120.c:1498: warning: initialization from incompatible pointer type

[SNIP]

zr36120.c:1839: unknown field `minor' specified in initializer
make[3]: *** [zr36120.o] Error 1
make[3]: Leaving directory `/usr/src/linux-2.5.25/drivers/media/video'
make[2]: *** [video] Error 2
make[2]: Leaving directory `/usr/src/linux-2.5.25/drivers/media'
make[1]: *** [media] Error 2
make[1]: Leaving directory `/usr/src/linux-2.5.25/drivers'
make: *** [drivers] Error 2

----

  gcc -Wp,-MD,./.zr36067.o.d -D__KERNEL__ 
-I/usr/src/linux-2.5.25/include -Wall -Wstrict-prototypes -Wno-trigraphs 
-O2 -fomit-frame-pointer -fno-strict-aliasing -fno-common -pipe 
-mpreferred-stack-boundary=2 -march=i686 -nostdinc -iwithprefix include 
-DMODULE -include /usr/src/linux-2.5.25/include/linux/modversions.h   
-DKBUILD_BASENAME=zr36067   -c -o zr36067.o zr36067.c
zr36067.c: In function `zoran_open':
zr36067.c:3267: structure has no member named `busy'
zr36067.c: At top level:
zr36067.c:4404: warning: initialization makes integer from pointer 
without a cast
zr36067.c:4405: warning: initialization makes integer from pointer 
without a cast
zr36067.c:4406: warning: initialization from incompatible pointer type
zr36067.c:4408: warning: initialization makes integer from pointer 
without a cast
zr36067.c:4409: warning: missing braces around initializer
zr36067.c:4409: warning: (near initialization for `zoran_template.lock')
zr36067.c:4409: warning: initialization makes integer from pointer 
without a cast
zr36067.c:4410: warning: initialization makes integer from pointer 
without a cast
zr36067.c:4411: warning: initialization makes integer from pointer 
without a cast
make[3]: *** [zr36067.o] Error 1
make[3]: Leaving directory `/usr/src/linux-2.5.25/drivers/media/video'
make[2]: *** [video] Error 2
make[2]: Leaving directory `/usr/src/linux-2.5.25/drivers/media'
make[1]: *** [media] Error 2
make[1]: Leaving directory `/usr/src/linux-2.5.25/drivers'
make: *** [drivers] Error 2

----

  gcc -Wp,-MD,./.stradis.o.d -D__KERNEL__ 
-I/usr/src/linux-2.5.25/include -Wall -Wstrict-prototypes -Wno-trigraphs 
-O2 -fomit-frame-pointer -fno-strict-aliasing -fno-common -pipe 
-mpreferred-stack-boundary=2 -march=i686 -nostdinc -iwithprefix include 
-DMODULE -include /usr/src/linux-2.5.25/include/linux/modversions.h   
-DKBUILD_BASENAME=stradis   -c -o stradis.o stradis.c
stradis.c: In function `saa_open':
stradis.c:1949: structure has no member named `busy'
stradis.c: In function `saa_close':
stradis.c:1961: structure has no member named `busy'
stradis.c: At top level:
stradis.c:1974: unknown field `open' specified in initializer
stradis.c:1974: warning: initialization makes integer from pointer 
without a cast

[SNIP]

make[3]: *** [stradis.o] Error 1
make[3]: Leaving directory `/usr/src/linux-2.5.25/drivers/media/video'
make[2]: *** [video] Error 2


Regards
Fabio

Re: linux 2.5.25

[James Simmons]

> 2.5.25: 2 problems found
>
> 1) Options under Input Device Support and under Character Devices: Mice
> are duplicates from a user's point of view. Fortunately they have different
> names (CONFIG_PSMOUSE vs CONFIG_MOUSE_PS2).
> Unfortunately they both seem to be used...did a recursive grep.

The input api PS/2 mouse driver is meant to replace the old driver which
is in pc_keyb.c. Unfortunely most keyboard drivers are based around
pc_keyb.c so it has to stay for now. Plus the console system is designed
around pc_keyb.c. This will also change as the console system is migrated
toward the input api. So to any keyboard maintainers please port your
drivers over to the input api before they break when the console system
breaks.