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netconsole: Include sysdata in extradata entry count

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Modify count_extradata_entries() to include sysdata fields when
calculating the total number of extradata entries. This change ensures
that the sysdata feature, specifically the CPU number field, is
correctly counted against the MAX_EXTRADATA_ITEMS limit.

The modification adds a simple check for the CPU_NR flag in the
sysdata_fields, incrementing the entry count accordingly.

Signed-off-by: Breno Leitao <leitao@debian.org>
Reviewed-by: Simon Horman <horms@kernel.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Breno Leitao 2025-02-06 03:05:56 -08:00 committed by David S. Miller
parent 364f67837e
commit 2bae25b16a
1 changed files with 9 additions and 1 deletions
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10
drivers/net/netconsole.c
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@ -694,7 +694,15 @@ static ssize_t remote_ip_store(struct config_item *item, const char *buf,
*/
static size_t count_extradata_entries(struct netconsole_target *nt)
{
return list_count_nodes(&nt->userdata_group.cg_children);
size_t entries;
/* Userdata entries */
entries = list_count_nodes(&nt->userdata_group.cg_children);
/* Plus sysdata entries */
if (nt->sysdata_fields & CPU_NR)
entries += 1;
return entries;
}
static ssize_t remote_mac_store(struct config_item *item, const char *buf,