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authorMarkus Blöchl <markus@blochl.de>2025-07-13 22:21:41 +0200
committerGreg Kroah-Hartman <gregkh@linuxfoundation.org>2025-07-24 08:56:26 +0200
commit74cb0f102d4b9c5806ce1aa9291bbfbdd5026315 (patch)
tree5bf902778696a6014d48c0e51fc099db905ff397
parent516cd0943a220718b9bc39f3b25ba7262bf51118 (diff)
net: stmmac: intel: populate entire system_counterval_t in get_time_fn() callback
commit e6176ab107ec6e57a752a97ba9f7c34a23034262 upstream. get_time_fn() callback implementations are expected to fill out the entire system_counterval_t struct as it may be initially uninitialized. This broke with the removal of convert_art_to_tsc() helper functions which left use_nsecs uninitialized. Initially assign the entire struct with default values. Fixes: f5e1d0db3f02 ("stmmac: intel: Remove convert_art_to_tsc()") Cc: stable@vger.kernel.org Signed-off-by: Markus Blöchl <markus@blochl.de> Reviewed-by: Simon Horman <horms@kernel.org> Link: https://patch.msgid.link/20250713-stmmac_crossts-v1-1-31bfe051b5cb@blochl.de Signed-off-by: Jakub Kicinski <kuba@kernel.org> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
-rw-r--r--drivers/net/ethernet/stmicro/stmmac/dwmac-intel.c8
1 files changed, 7 insertions, 1 deletions
diff --git a/drivers/net/ethernet/stmicro/stmmac/dwmac-intel.c b/drivers/net/ethernet/stmicro/stmmac/dwmac-intel.c
index 83ad7c7935e3..23d9ece46d9c 100644
--- a/drivers/net/ethernet/stmicro/stmmac/dwmac-intel.c
+++ b/drivers/net/ethernet/stmicro/stmmac/dwmac-intel.c
@@ -379,6 +379,12 @@ static int intel_crosststamp(ktime_t *device,
return -ETIMEDOUT;
}
+ *system = (struct system_counterval_t) {
+ .cycles = 0,
+ .cs_id = CSID_X86_ART,
+ .use_nsecs = false,
+ };
+
num_snapshot = (readl(ioaddr + GMAC_TIMESTAMP_STATUS) &
GMAC_TIMESTAMP_ATSNS_MASK) >>
GMAC_TIMESTAMP_ATSNS_SHIFT;
@@ -394,7 +400,7 @@ static int intel_crosststamp(ktime_t *device,
}
system->cycles *= intel_priv->crossts_adj;
- system->cs_id = CSID_X86_ART;
+
priv->plat->flags &= ~STMMAC_FLAG_INT_SNAPSHOT_EN;
return 0;