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dpll: fix clock quality level reporting

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[ Upstream commit 70d99623d5c11e1a9bcc564b8fbad6fa916913d8 ]

The DPLL_CLOCK_QUALITY_LEVEL_ITU_OPT1_EPRC is not reported via netlink
due to bug in dpll_msg_add_clock_quality_level(). The usage of
DPLL_CLOCK_QUALITY_LEVEL_MAX for both DECLARE_BITMAP() and
for_each_set_bit() is not correct because these macros requires bitmap
size and not the highest valid bit in the bitmap.

Use correct bitmap size to fix this issue.

Fixes: a1afb959ad ("dpll: add clock quality level attribute and op")
Signed-off-by: Ivan Vecera <ivecera@redhat.com>
Reviewed-by: Arkadiusz Kubalewski <arkadiusz.kubalewski@intel.com>
Link: https://patch.msgid.link/20250912093331.862333-1-ivecera@redhat.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
This commit is contained in:
Ivan Vecera 2025-09-12 11:33:31 +02:00 committed by Greg Kroah-Hartman
parent 993b734d31
commit 64e76fcb53
1 changed files with 2 additions and 2 deletions
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4
drivers/dpll/dpll_netlink.c
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@ -173,8 +173,8 @@ static int
dpll_msg_add_clock_quality_level(struct sk_buff *msg, struct dpll_device *dpll,
struct netlink_ext_ack *extack)
{
DECLARE_BITMAP(qls, DPLL_CLOCK_QUALITY_LEVEL_MAX + 1) = { 0 };
const struct dpll_device_ops *ops = dpll_device_ops(dpll);
DECLARE_BITMAP(qls, DPLL_CLOCK_QUALITY_LEVEL_MAX) = { 0 };
enum dpll_clock_quality_level ql;
int ret;
@ -183,7 +183,7 @@ dpll_msg_add_clock_quality_level(struct sk_buff *msg, struct dpll_device *dpll,
ret = ops->clock_quality_level_get(dpll, dpll_priv(dpll), qls, extack);
if (ret)
return ret;
for_each_set_bit(ql, qls, DPLL_CLOCK_QUALITY_LEVEL_MAX)
for_each_set_bit(ql, qls, DPLL_CLOCK_QUALITY_LEVEL_MAX + 1)
if (nla_put_u32(msg, DPLL_A_CLOCK_QUALITY_LEVEL, ql))
return -EMSGSIZE;