On Mon, Jan 29, 2007 at 11:43:33PM -0600, Kumar Gala wrote:
> On ppc the compiler gripes about:
>
> kernel/kprobes.c: In function 'collect_garbage_slots':
> kernel/kprobes.c:215: warning: comparison is always false due to limited
> range of data type
>
> The compiler ends up optimizing away the test since char's are unsigned on
> ppc.
Kumar,
Masami fixed this last week:
http://marc.theaimsgroup.com/?l=linux-kernel&m=116968723823366&w=2
Patch currently in -mm.
Thanks,
Ananth
>
> Signed-off-by: Kumar Gala <[email protected]>
>
> ---
> commit 1ee2dc5300b1c454f92eeea82da300f72db1b26f
> tree c73cdacb43e154292708d967e11b1cbf7ab4904f
> parent c0d4d573feed199b16094c072e7cb07afb01c598
> author Kumar Gala <[email protected]> Mon, 29 Jan 2007 23:38:11
> -0600
> committer Kumar Gala <[email protected]> Mon, 29 Jan 2007 23:38:11
> -0600
>
> kernel/kprobes.c | 2 +-
> 1 files changed, 1 insertions(+), 1 deletions(-)
>
> diff --git a/kernel/kprobes.c b/kernel/kprobes.c
> index 17ec4af..514276f 100644
> --- a/kernel/kprobes.c
> +++ b/kernel/kprobes.c
> @@ -212,7 +212,7 @@ static int __kprobes collect_garbage_slots(void)
> continue;
> kip->ngarbage = 0; /* we will collect all garbages */
> for (i = 0; i < INSNS_PER_PAGE; i++) {
> - if (kip->slot_used[i] == -1 &&
> + if (kip->slot_used[i] == (char)-1 &&
> collect_one_slot(kip, i))
> break;
> }
-
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