how to handle ... warning: `something' is deprecated ...

[Damir Perisa <damir.perisa@solnet.ch>]

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hi all,

i was wondering what i should do with warnings that come up. especially i 
wonder about depreached code. should it be posted to the ML? do the 
people maintaining the drivers/code know about them? what is the general 
procedure? (i know warnings are not errors ;-)

examples (kernel26mm 2.6.12-rc3-mm3):

  CC      drivers/char/agp/efficeon-agp.o
drivers/char/agp/efficeon-agp.c: In function `efficeon_create_gatt_table':
drivers/char/agp/efficeon-agp.c:222: warning: passing arg 1 of 
`virt_to_phys' makes pointer from integer without a cast

  CC [M]  drivers/char/specialix.o
drivers/char/specialix.c: In function `sx_check_io_range':
drivers/char/specialix.c:343: warning: `check_region' is deprecated 
(declared at include/linux/ioport.h:124)

  CC [M]  drivers/ide/ide-tape.o
drivers/ide/ide-tape.c: In function `idetape_copy_stage_from_user':
drivers/ide/ide-tape.c:2659: warning: ignoring return value of 
`copy_from_user', declared with attribute warn_unused_result
drivers/ide/ide-tape.c: In function `idetape_copy_stage_to_user':
drivers/ide/ide-tape.c:2686: warning: ignoring return value of 
`copy_to_user', declared with attribute warn_unused_result

  CC [M]  drivers/isdn/capi/capidrv.o
drivers/isdn/capi/capidrv.c:2108:3: warning: #warning FIXME: maybe a race 
condition the card should be removed here from global list /kkeil

  CC [M]  drivers/isdn/hisax/config.o
drivers/isdn/hisax/config.c: In function `HiSax_readstatus':
drivers/isdn/hisax/config.c:636: warning: ignoring return value of 
`copy_to_user', declared with attribute warn_unused_result
drivers/isdn/hisax/config.c:647: warning: ignoring return value of 
`copy_to_user', declared with attribute warn_unused_result

  CC      drivers/mca/mca-legacy.o
In file included from drivers/mca/mca-legacy.c:31:
include/linux/mca-legacy.h:12:2: warning: #warning "MCA legacy - please 
move your driver to the new sysfs api"
In file included from drivers/mca/mca-legacy.c:31:
include/linux/mca-legacy.h:12:2: warning: #warning "MCA legacy - please 
move your driver to the new sysfs api"

  CC [M]  drivers/net/irda/nsc-ircc.o
drivers/net/irda/nsc-ircc.c: In function `nsc_ircc_cleanup':
drivers/net/irda/nsc-ircc.c:229: warning: `pm_unregister_all' is 
deprecated (declared at include/linux/pm.h:117)
drivers/net/irda/nsc-ircc.c: In function `nsc_ircc_open':
drivers/net/irda/nsc-ircc.c:366: warning: `pm_register' is deprecated 
(declared at include/linux/pm.h:107)

  CC [M]  drivers/net/irda/smsc-ircc2.o
drivers/net/irda/smsc-ircc2.c: In function `smsc_ircc_open':
drivers/net/irda/smsc-ircc2.c:465: warning: `pm_register' is deprecated 
(declared at include/linux/pm.h:107)
drivers/net/irda/smsc-ircc2.c: In function `smsc_ircc_close':
drivers/net/irda/smsc-ircc2.c:1696: warning: `pm_unregister' is deprecated 
(declared at include/linux/pm.h:112)

  CC [M]  drivers/net/irda/ali-ircc.o
drivers/net/irda/ali-ircc.c: In function `ali_ircc_cleanup':
drivers/net/irda/ali-ircc.c:231: warning: `pm_unregister_all' is 
deprecated (declared at include/linux/pm.h:117)
drivers/net/irda/ali-ircc.c: In function `ali_ircc_open':
drivers/net/irda/ali-ircc.c:360: warning: `pm_register' is deprecated 
(declared at include/linux/pm.h:107)

  CC [M]  drivers/net/tulip/dmfe.o
drivers/net/tulip/dmfe.c: In function `dmfe_parse_srom':
drivers/net/tulip/dmfe.c:1805: warning: passing arg 1 of `__le16_to_cpup' 
from incompatible pointer type
drivers/net/tulip/dmfe.c:1817: warning: passing arg 1 of `__le32_to_cpup' 
from incompatible pointer type
drivers/net/tulip/dmfe.c:1817: warning: passing arg 1 of `__le32_to_cpup' 
from incompatible pointer type

    CC [M]  drivers/net/ne2.o
In file included from drivers/net/ne2.c:73:
include/linux/mca-legacy.h:12:2: warning: #warning "MCA legacy - please 
move your driver to the new sysfs api"

thank you in advance,

Damir Perisa

-- 
No one knows what he can do till he tries.
		-- Publilius Syrus

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