diff options
| author | Ioana Radulescu <ruxandra.radulescu@nxp.com> | 2017-09-22 12:20:02 +0300 |
|---|---|---|
| committer | Dong Aisheng <aisheng.dong@nxp.com> | 2019-12-02 18:03:49 +0800 |
| commit | 91e1a4d583f1c4688048a52ba5f9feb120dd7f1c (patch) | |
| tree | c80e7b51bd6d9cf6c12f8039a51821608289c15e /drivers/staging/fsl-dpaa2 | |
| parent | 9de4f517fb94e4cd0111d2fe8a50e228c6fc65ed (diff) | |
staging: fsl-dpaa2/mac: Request atomic context MC portals
The MAC driver may need to issue MC commands while in atomic
context (e.g. dpaa2_mac_get_stats can be called from a critical
section), so we need to use MC portals that don't sleep while
waiting for a command response to arrive.
Signed-off-by: Ioana Radulescu <ruxandra.radulescu@nxp.com>
Diffstat (limited to 'drivers/staging/fsl-dpaa2')
| -rw-r--r-- | drivers/staging/fsl-dpaa2/mac/mac.c | 4 |
1 files changed, 3 insertions, 1 deletions
diff --git a/drivers/staging/fsl-dpaa2/mac/mac.c b/drivers/staging/fsl-dpaa2/mac/mac.c index c1dec2ce386d..70d8118a1318 100644 --- a/drivers/staging/fsl-dpaa2/mac/mac.c +++ b/drivers/staging/fsl-dpaa2/mac/mac.c @@ -490,7 +490,9 @@ static int dpaa2_mac_probe(struct fsl_mc_device *mc_dev) dev_set_drvdata(dev, priv); - err = fsl_mc_portal_allocate(mc_dev, 0, &mc_dev->mc_io); + /* We may need to issue MC commands while in atomic context */ + err = fsl_mc_portal_allocate(mc_dev, FSL_MC_IO_ATOMIC_CONTEXT_PORTAL, + &mc_dev->mc_io); if (err || !mc_dev->mc_io) { dev_err(dev, "fsl_mc_portal_allocate error: %d\n", err); err = -ENODEV; |