From e701f412030ec3783f1c30c7741492693d6213e3 Mon Sep 17 00:00:00 2001 From: Robert Richter Date: Mon, 2 Sep 2019 12:33:47 +0000 Subject: [PATCH] EDAC/mc_sysfs: Make debug messages consistent Debug messages are inconsistently used in the error handlers. Some lack an error message, some are called regardless of the return status, messages for the same error are at different locations in the code depending on the error code. This happens esp. near put_device() calls. Make those debug messages more consistent. Additionally, unify the error messages to have the same terms for the same operations of the device. Signed-off-by: Robert Richter Signed-off-by: Borislav Petkov Reviewed-by: Mauro Carvalho Chehab Cc: "linux-edac@vger.kernel.org" Cc: James Morse Cc: Tony Luck Link: https://lkml.kernel.org/r/20190902123216.9809-5-rrichter@marvell.com --- drivers/edac/edac_mc_sysfs.c | 64 +++++++++++++++++------------------- 1 file changed, 30 insertions(+), 34 deletions(-) diff --git a/drivers/edac/edac_mc_sysfs.c b/drivers/edac/edac_mc_sysfs.c index 309fc24339b0..32d016f1ecd1 100644 --- a/drivers/edac/edac_mc_sysfs.c +++ b/drivers/edac/edac_mc_sysfs.c @@ -278,7 +278,7 @@ static void csrow_attr_release(struct device *dev) { struct csrow_info *csrow = container_of(dev, struct csrow_info, dev); - edac_dbg(1, "Releasing csrow device %s\n", dev_name(dev)); + edac_dbg(1, "device %s released\n", dev_name(dev)); kfree(csrow); } @@ -414,14 +414,16 @@ static int edac_create_csrow_object(struct mem_ctl_info *mci, dev_set_name(&csrow->dev, "csrow%d", index); dev_set_drvdata(&csrow->dev, csrow); - edac_dbg(0, "creating (virtual) csrow node %s\n", - dev_name(&csrow->dev)); - err = device_add(&csrow->dev); - if (err) + if (err) { + edac_dbg(1, "failure: create device %s\n", dev_name(&csrow->dev)); put_device(&csrow->dev); + return err; + } - return err; + edac_dbg(0, "device %s created\n", dev_name(&csrow->dev)); + + return 0; } /* Create a CSROW object under specifed edac_mc_device */ @@ -435,12 +437,8 @@ static int edac_create_csrow_objects(struct mem_ctl_info *mci) if (!nr_pages_per_csrow(csrow)) continue; err = edac_create_csrow_object(mci, mci->csrows[i], i); - if (err < 0) { - edac_dbg(1, - "failure: create csrow objects for csrow %d\n", - i); + if (err < 0) goto error; - } } return 0; @@ -624,7 +622,7 @@ static void dimm_attr_release(struct device *dev) { struct dimm_info *dimm = container_of(dev, struct dimm_info, dev); - edac_dbg(1, "Releasing dimm device %s\n", dev_name(dev)); + edac_dbg(1, "device %s released\n", dev_name(dev)); kfree(dimm); } @@ -653,12 +651,21 @@ static int edac_create_dimm_object(struct mem_ctl_info *mci, pm_runtime_forbid(&mci->dev); err = device_add(&dimm->dev); - if (err) + if (err) { + edac_dbg(1, "failure: create device %s\n", dev_name(&dimm->dev)); put_device(&dimm->dev); + return err; + } - edac_dbg(0, "created rank/dimm device %s\n", dev_name(&dimm->dev)); + if (IS_ENABLED(CONFIG_EDAC_DEBUG)) { + char location[80]; - return err; + edac_dimm_info_location(dimm, location, sizeof(location)); + edac_dbg(0, "device %s created at location %s\n", + dev_name(&dimm->dev), location); + } + + return 0; } /* @@ -901,7 +908,7 @@ static void mci_attr_release(struct device *dev) { struct mem_ctl_info *mci = container_of(dev, struct mem_ctl_info, dev); - edac_dbg(1, "Releasing csrow device %s\n", dev_name(dev)); + edac_dbg(1, "device %s released\n", dev_name(dev)); kfree(mci); } @@ -933,7 +940,6 @@ int edac_create_sysfs_mci_device(struct mem_ctl_info *mci, dev_set_drvdata(&mci->dev, mci); pm_runtime_forbid(&mci->dev); - edac_dbg(0, "creating device %s\n", dev_name(&mci->dev)); err = device_add(&mci->dev); if (err < 0) { edac_dbg(1, "failure: create device %s\n", dev_name(&mci->dev)); @@ -941,6 +947,8 @@ int edac_create_sysfs_mci_device(struct mem_ctl_info *mci, return err; } + edac_dbg(0, "device %s created\n", dev_name(&mci->dev)); + /* * Create the dimm/rank devices */ @@ -950,22 +958,9 @@ int edac_create_sysfs_mci_device(struct mem_ctl_info *mci, if (!dimm->nr_pages) continue; -#ifdef CONFIG_EDAC_DEBUG - edac_dbg(1, "creating dimm%d, located at ", i); - if (edac_debug_level >= 1) { - int lay; - for (lay = 0; lay < mci->n_layers; lay++) - printk(KERN_CONT "%s %d ", - edac_layer_name[mci->layers[lay].type], - dimm->location[lay]); - printk(KERN_CONT "\n"); - } -#endif err = edac_create_dimm_object(mci, dimm, i); - if (err) { - edac_dbg(1, "failure: create dimm %d obj\n", i); + if (err) goto fail_unregister_dimm; - } } #ifdef CONFIG_EDAC_LEGACY_SYSFS @@ -1010,14 +1005,14 @@ void edac_remove_sysfs_mci_device(struct mem_ctl_info *mci) struct dimm_info *dimm = mci->dimms[i]; if (dimm->nr_pages == 0) continue; - edac_dbg(0, "removing device %s\n", dev_name(&dimm->dev)); + edac_dbg(1, "unregistering device %s\n", dev_name(&dimm->dev)); device_unregister(&dimm->dev); } } void edac_unregister_sysfs(struct mem_ctl_info *mci) { - edac_dbg(1, "Unregistering device %s\n", dev_name(&mci->dev)); + edac_dbg(1, "unregistering device %s\n", dev_name(&mci->dev)); device_unregister(&mci->dev); } @@ -1028,7 +1023,7 @@ static void mc_attr_release(struct device *dev) * parent device, used to create the /sys/devices/mc sysfs node. * So, there are no attributes on it. */ - edac_dbg(1, "Releasing device %s\n", dev_name(dev)); + edac_dbg(1, "device %s released\n", dev_name(dev)); kfree(dev); } @@ -1053,6 +1048,7 @@ int __init edac_mc_sysfs_init(void) err = device_add(mci_pdev); if (err < 0) { + edac_dbg(1, "failure: create device %s\n", dev_name(mci_pdev)); put_device(mci_pdev); return err; }