diff options
| -rw-r--r-- | drivers/hwtracing/coresight/coresight-core.c | 51 |
1 files changed, 12 insertions, 39 deletions
diff --git a/drivers/hwtracing/coresight/coresight-core.c b/drivers/hwtracing/coresight/coresight-core.c index 37e59052e877..5e93b52df105 100644 --- a/drivers/hwtracing/coresight/coresight-core.c +++ b/drivers/hwtracing/coresight/coresight-core.c @@ -279,16 +279,8 @@ EXPORT_SYMBOL_GPL(coresight_add_helper); static int coresight_enable_sink(struct coresight_device *csdev, enum cs_mode mode, void *data) { - int ret; - - /* - * We need to make sure the "new" session is compatible with the - * existing "mode" of operation. - */ - if (!sink_ops(csdev)->enable) - return -EINVAL; + int ret = sink_ops(csdev)->enable(csdev, mode, data); - ret = sink_ops(csdev)->enable(csdev, mode, data); if (ret) return ret; @@ -299,12 +291,7 @@ static int coresight_enable_sink(struct coresight_device *csdev, static void coresight_disable_sink(struct coresight_device *csdev) { - int ret; - - if (!sink_ops(csdev)->disable) - return; - - ret = sink_ops(csdev)->disable(csdev); + int ret = sink_ops(csdev)->disable(csdev); if (ret) return; csdev->enable = false; @@ -330,11 +317,9 @@ static int coresight_enable_link(struct coresight_device *csdev, if (link_subtype == CORESIGHT_DEV_SUBTYPE_LINK_SPLIT && IS_ERR(outconn)) return PTR_ERR(outconn); - if (link_ops(csdev)->enable) { - ret = link_ops(csdev)->enable(csdev, inconn, outconn); - if (!ret) - csdev->enable = true; - } + ret = link_ops(csdev)->enable(csdev, inconn, outconn); + if (!ret) + csdev->enable = true; return ret; } @@ -354,9 +339,7 @@ static void coresight_disable_link(struct coresight_device *csdev, outconn = coresight_find_out_connection(csdev, child); link_subtype = csdev->subtype.link_subtype; - if (link_ops(csdev)->disable) { - link_ops(csdev)->disable(csdev, inconn, outconn); - } + link_ops(csdev)->disable(csdev, inconn, outconn); if (link_subtype == CORESIGHT_DEV_SUBTYPE_LINK_MERG) { for (i = 0; i < csdev->pdata->nr_inconns; i++) @@ -382,11 +365,9 @@ int coresight_enable_source(struct coresight_device *csdev, enum cs_mode mode, int ret; if (!csdev->enable) { - if (source_ops(csdev)->enable) { - ret = source_ops(csdev)->enable(csdev, data, mode); - if (ret) - return ret; - } + ret = source_ops(csdev)->enable(csdev, data, mode); + if (ret) + return ret; csdev->enable = true; } @@ -404,11 +385,8 @@ static bool coresight_is_helper(struct coresight_device *csdev) static int coresight_enable_helper(struct coresight_device *csdev, enum cs_mode mode, void *data) { - int ret; + int ret = helper_ops(csdev)->enable(csdev, mode, data); - if (!helper_ops(csdev)->enable) - return 0; - ret = helper_ops(csdev)->enable(csdev, mode, data); if (ret) return ret; @@ -418,12 +396,8 @@ static int coresight_enable_helper(struct coresight_device *csdev, static void coresight_disable_helper(struct coresight_device *csdev) { - int ret; - - if (!helper_ops(csdev)->disable) - return; + int ret = helper_ops(csdev)->disable(csdev, NULL); - ret = helper_ops(csdev)->disable(csdev, NULL); if (ret) return; csdev->enable = false; @@ -453,8 +427,7 @@ static void coresight_disable_helpers(struct coresight_device *csdev) */ void coresight_disable_source(struct coresight_device *csdev, void *data) { - if (source_ops(csdev)->disable) - source_ops(csdev)->disable(csdev, data); + source_ops(csdev)->disable(csdev, data); coresight_disable_helpers(csdev); } EXPORT_SYMBOL_GPL(coresight_disable_source); |