Re: [PATCH] scsi: fix scsi device attributes registration
From: Steffen Maier <hidden>
Date: 2021-11-11 10:35:28
Also in:
linux-scsi
On 11/11/21 09:45, Damien Le Moal wrote:
quoted hunk ↗ jump to hunk
Since the sdev_gendev device of a scsi device defines its attributes using scsi_sdev_attr_groups as the groups field value of its device type, the execution of device_add() in scsi_sysfs_add_sdev() register with sysfs only the attributes defined using scsi_sdev_attr_groups. As a results, the attributes defined by an LLD using the scsi host sdev_groups attribute groups are never registered with sysfs and not visible to the users. Fix this problem by removing scsi_sdev_attr_groups and manually setting the groups field of a scsi device sdev_gendev to point to the scsi device gendev_attr_groups. As the first entry of this array of attribute groups is scsi_sdev_attr_group, using gendev_attr_groups as the gendev groups result in all defined attributes to be created in sysfs when device_add() is called. Fixes: 92c4b58b15c5 ("scsi: core: Register sysfs attributes earlier") cc: Bart Van Assche <bvanassche@acm.org> Signed-off-by: Damien Le Moal <redacted> --- drivers/scsi/scsi_sysfs.c | 7 +------ 1 file changed, 1 insertion(+), 6 deletions(-)diff --git a/drivers/scsi/scsi_sysfs.c b/drivers/scsi/scsi_sysfs.c index d3d362289ecc..92c92853f516 100644 --- a/drivers/scsi/scsi_sysfs.c +++ b/drivers/scsi/scsi_sysfs.c@@ -1301,11 +1301,6 @@ static struct attribute_group scsi_sdev_attr_group = { .is_bin_visible = scsi_sdev_bin_attr_is_visible, }; -static const struct attribute_group *scsi_sdev_attr_groups[] = { - &scsi_sdev_attr_group, - NULL -}; - static int scsi_target_add(struct scsi_target *starget) { int error;@@ -1575,7 +1570,6 @@ int scsi_sysfs_add_host(struct Scsi_Host *shost) static struct device_type scsi_dev_type = { .name = "scsi_device", .release = scsi_device_dev_release, - .groups = scsi_sdev_attr_groups, }; void scsi_sysfs_device_initialize(struct scsi_device *sdev)@@ -1601,6 +1595,7 @@ void scsi_sysfs_device_initialize(struct scsi_device *sdev) } } WARN_ON_ONCE(j >= ARRAY_SIZE(sdev->gendev_attr_groups)); + sdev->sdev_gendev.groups = sdev->gendev_attr_groups; device_initialize(&sdev->sdev_dev); sdev->sdev_dev.parent = get_device(&sdev->sdev_gendev);
Damien, which kernel were you using? Isn't this fixed by?: next: https://lore.kernel.org/linux-scsi/163478764102.7011.9375895285870786953.b4-ty@oracle.com/t/#mab0eeb4a8d8db95c3ace0013bfef775736e124cb (local) ("scsi: core: Fix early registration of sysfs attributes for scsi_device") https://git.kernel.org/pub/scm/linux/kernel/git/mkp/scsi.git/commit/?h=5.16/scsi-staging&id=3a71f0f7a51259b3cb95d79cac1e19dcc5e89ce9 https://git.kernel.org/pub/scm/linux/kernel/git/mkp/scsi.git/commit/?h=5.16/scsi-queue&id=3a71f0f7a51259b3cb95d79cac1e19dcc5e89ce9 https://git.kernel.org/pub/scm/linux/kernel/git/mkp/scsi.git/commit/?h=for-next&id=3a71f0f7a51259b3cb95d79cac1e19dcc5e89ce9 => https://git.kernel.org/pub/scm/linux/kernel/git/next/linux-next-history.git/commit/?h=next-20211028&id=503f375baa99edff894eb1a534d2ac0b4f799573 soon in vanilla: https://lore.kernel.org/linux-scsi/163612851260.17201.4106345384610850520.pr-tracker-bot@kernel.org/t/#md79869a3966ccceb30eef658b85743e49cf31dc1 (local) -- Mit freundlichen Gruessen / Kind regards Steffen Maier Linux on IBM Z and LinuxONE https://www.ibm.com/privacy/us/en/ IBM Deutschland Research & Development GmbH Vorsitzender des Aufsichtsrats: Gregor Pillen Geschaeftsfuehrung: Dirk Wittkopp Sitz der Gesellschaft: Boeblingen Registergericht: Amtsgericht Stuttgart, HRB 243294