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sched_ext: Fixes incorrect type in bpf_scx_init()

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The type_id is defined as u32type, if(type_id<0) is invalid, hence
modified its type to s32.

./kernel/sched/ext.c:4958:5-12: WARNING: Unsigned expression compared with zero: type_id < 0.

Reported-by: Abaci Robot <abaci@linux.alibaba.com>
Closes: https://bugzilla.openanolis.cn/show_bug.cgi?id=9523
Signed-off-by: Jiapeng Chong <jiapeng.chong@linux.alibaba.com>
Signed-off-by: Tejun Heo <tj@kernel.org>
This commit is contained in:
Jiapeng Chong 2024-07-15 10:10:26 +08:00 committed by Tejun Heo
parent 1edab907b5
commit 8bb30798fd
1 changed files with 1 additions and 1 deletions
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2
kernel/sched/ext.c
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@ -5057,7 +5057,7 @@ static void bpf_scx_unreg(void *kdata, struct bpf_link *link)
static int bpf_scx_init(struct btf *btf) static int bpf_scx_init(struct btf *btf)
{ {
u32 type_id; s32 type_id;
type_id = btf_find_by_name_kind(btf, "task_struct", BTF_KIND_STRUCT); type_id = btf_find_by_name_kind(btf, "task_struct", BTF_KIND_STRUCT);
if (type_id < 0) if (type_id < 0)