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Groups > linux.kernel > #1412515
| From | David Miller <davem@davemloft.net> |
|---|---|
| Newsgroups | linux.kernel |
| Subject | Re: [PATCH] stmmac: do not sleep in atomic context for mdio_reset |
| Date | 2016-06-02 21:20 +0200 |
| Message-ID | <rFGjT-1DM-11@gated-at.bofh.it> (permalink) |
| References | <rFgIN-1Ow-9@gated-at.bofh.it> |
| Organization | linux.* mail to news gateway |
From: Vincent Palatin <vpalatin@chromium.org> Date: Wed, 1 Jun 2016 08:53:48 -0700 > stmmac_mdio_reset() has been updated to use msleep rather udelay > (as some PHY requires a one second delay there). > It called from stmmac_resume() within the spin_lock_irqsave block > atomic context triggering 'scheduling while atomic'. > > The stmmac_priv lock usage is not fully documented, but it seems > to protect the access to the MAC registers / DMA structures rather > than the MDIO bus or the PHY (which have separate locking), > so we can push the spin_lock after the stmmac_mdio_reset call. > > Signed-off-by: Vincent Palatin <vpalatin@chromium.org> Applied, thanks.
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[PATCH] stmmac: do not sleep in atomic context for mdio_reset Vincent Palatin <vpalatin@chromium.org> - 2016-06-01 18:00 +0200 Re: [PATCH] stmmac: do not sleep in atomic context for mdio_reset David Miller <davem@davemloft.net> - 2016-06-02 21:20 +0200
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