[Devel] Re: [PATCH 1/9] checkpoint: fix integer-pointer conversion warnings

Serge E. Hallyn serue at us.ibm.com
Wed Sep 16 10:03:17 PDT 2009


Quoting Oren Laadan (orenl at librato.com):
> 
> 
> Serge E. Hallyn wrote:
> > Quoting Nathan Lynch (ntl at pobox.com):
> >>   CC      checkpoint/process.o
> >> checkpoint/process.c: In function ‘checkpoint_task_struct’:
> >> checkpoint/process.c:97: warning: assignment makes integer from pointer without a cast
> >> checkpoint/process.c:98: warning: assignment makes integer from pointer without a cast
> >> checkpoint/process.c: In function ‘restore_task_struct’:
> >> checkpoint/process.c:475: warning: assignment makes pointer from integer without a cast
> >> checkpoint/process.c:476: warning: assignment makes pointer from integer without a cast
> >>
> >> Signed-off-by: Nathan Lynch <ntl at pobox.com>
> >> ---
> >>  checkpoint/process.c |    8 ++++----
> >>  1 files changed, 4 insertions(+), 4 deletions(-)
> >>
> >> diff --git a/checkpoint/process.c b/checkpoint/process.c
> >> index 41566db..b7f4a43 100644
> >> --- a/checkpoint/process.c
> >> +++ b/checkpoint/process.c
> >> @@ -94,8 +94,8 @@ static int checkpoint_task_struct(struct ckpt_ctx *ctx, struct task_struct *t)
> >>  		h->exit_signal = t->exit_signal;
> >>  		h->pdeath_signal = t->pdeath_signal;
> >>  
> >> -		h->set_child_tid = t->set_child_tid;
> >> -		h->clear_child_tid = t->clear_child_tid;
> >> +		h->set_child_tid = (unsigned long)t->set_child_tid;
> >> +		h->clear_child_tid = (unsigned long)t->clear_child_tid;
> > 
> > But it's defined as __u64 in checkpoint_hdr.h.  So on 32-bit this cast
> > won't be right, right?
> 
> Should be harmless.
> 
> > 
> > But a major ack to shutting this thing up.
> 
> Definitely. In fact, it's addressed already in the PGID patch :)

Right, I thought it looked familiar :)
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