Re: [PATCH 3/3] phy: nxp-c45-tja11xx: read the tx timestamp without lock
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From: Andrew Lunn <andrew@lunn.ch>
Date: 2021-12-20 15:12:52
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On Mon, Dec 20, 2021 at 02:08:59PM +0200, Radu Pirea (NXP OSS) wrote:
The tx timestamps are read from only one place in interrupt or polling mode. Locking the mutex is useless.
You cannot take a mutex in an interrupt handler. So your description is probably not accurate. Is it safe for other ptp operations to be performed in parallel with reading the TX timestamp? _nxp_c45_ptp_settime64()? Andrew