On Tue, Sep 07, 2004 at 10:43:51PM +1000, Con Kolivas wrote:
Arjan van de Ven wrote:
On Tue, 2004-09-07 at 14:23, Con Kolivas wrote:
Gcc3.4.1 has recently been complaining of a number of unused results
from function with attribute warn_unused_result set. I'm not sure of how
you want to tackle this so I'm avoiding posting patches. Should we remove the attribute (seems the likely option) or set some dummy variable (sounds stupid now that I ask it).
that attribute is supposed to only be set for functions you really ought
to check the result for.... so how about checking/using the result ?
I understand the concept... these are functions that seem to work fine without using the return value... unless of course the original coders aren't yet aware of that fact then I'm sorry. Here's the list just with my config on 2.6.9-rc1-bk13:
fs/binfmt_elf.c:273: warning: ignoring return value of `copy_to_user', declared with attribute warn_unused_result
you really are supposed to use the return value of copy_to_user and friends.
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