Previously, if LIST_HEAD_FORMAT was not set, `list -r` will traverse the list in order, that doesn't obey the -r(reverse) semantics. Per the code, -r(LIST_HEAD_REVERSE) only work with LIST_HEAD_FORMAT and '-r' usage also says that "For a list linked with list_head structures", so it's reasonable to enable LIST_HEAD_FORMAT for it. Cc: Lianbo Jiang <lijiang(a)redhat.com&gt; Cc: Tao Liu <ltao(a)redhat.com&gt; Signed-off-by: Li Zhijian <lizhijian(a)fujitsu.com&gt; --- V2: enable LIST_HEAD_FORMAT for -r option instead of fatal when -h/-H is not specified for -r. # Lianbo --- tools.c | 1 + 1 file changed, 1 insertion(+) diff --git a/tools.c b/tools.c index 0f2db108838a..1022d579071a 100644 --- a/tools.c +++ b/tools.c @@ -3370,6 +3370,7 @@ cmd_list(void) break; case 'r': + ld->flags |= LIST_HEAD_FORMAT; ld->flags |= LIST_HEAD_REVERSE; break;

-- 2.29.2

Hi Lijiang & Zhijian, On Tue, Jul 2, 2024 at 8:23 PM lijiang <lijiang(a)redhat.com&gt; wrote: > > On Tue, Jul 2, 2024 at 2:31 PM Li Zhijian <lizhijian(a)fujitsu.com&gt; wrote: >> >> Previously, if LIST_HEAD_FORMAT was not set, `list -r` will traverse the >> list in order, that doesn't obey the -r(reverse) semantics. >> >> Per the code, -r(LIST_HEAD_REVERSE) only work with LIST_HEAD_FORMAT and >> '-r' usage also says that "For a list linked with list_head structures", >> so it's reasonable to enable LIST_HEAD_FORMAT for it. >> >> Cc: Lianbo Jiang <lijiang(a)redhat.com&gt; >> Cc: Tao Liu <ltao(a)redhat.com&gt; >> Signed-off-by: Li Zhijian <lizhijian(a)fujitsu.com&gt; >> >> --- >> V2: enable LIST_HEAD_FORMAT for -r option instead of fatal when -h/-H is >> not specified for -r. # Lianbo >> --- >> tools.c | 1 + >> 1 file changed, 1 insertion(+) >> >> diff --git a/tools.c b/tools.c >> index 0f2db108838a..1022d579071a 100644 >> --- a/tools.c >> +++ b/tools.c >> @@ -3370,6 +3370,7 @@ cmd_list(void) >> break; >> >> case 'r': >> + ld->flags |= LIST_HEAD_FORMAT; >> ld->flags |= LIST_HEAD_REVERSE; >> break; >> > > Thank you for the update, and this looks good to me. So for the v2: Ack. > LGTM, so ack

Thanks, Tao Liu > >> >> -- >> 2.29.2 >>