On 27/03/2024 02:13, Damien Le Moal wrote: - old address
On 3/27/24 11:01, Damien Le Moal wrote:Commit b4d3ddd2df7 ("scsi: libsas: Define NCQ Priority sysfs attributes for SATA devices") introduced support for ATA NCQ priority control for ATA devices managed by libsas. This commit introduces the
nit: /s/This commit introduces the/That commit introduced the/
ncq_prio_supported and ncq_prio_enable sysfs device attributes to discover and control the use of this features, similarly to libata. However, libata publicly declares these device attributes and export them for use in ATA low level drivers. This leads to a compilation error when libsas and libata are built-in due to the double definition: ld: drivers/ata/libata-sata.o:/home/Linux/scsi/drivers/ata/libata-sata.c:900: multiple definition of `dev_attr_ncq_prio_supported'; drivers/scsi/libsas/sas_ata.o:/home/Linux/scsi/drivers/scsi/libsas/sas_ata.c:984: first defined here ld: drivers/ata/libata-sata.o:/home/Linux/scsi/drivers/ata/libata-sata.c:1026: multiple definition of `dev_attr_ncq_prio_enable'; drivers/scsi/libsas/sas_ata.o:/home/Linux/scsi/drivers/scsi/libsas/sas_ata.c:1022: first defined here Resolve this problem by directly declaring the libsas attributes instead of using the DEVICE_ATTR() macro. And for good measure, the device attribute variables are also renamed. Reported-by: Geert Uytterhoeven <geert@xxxxxxxxxxxxxx> Fixes: b4d3ddd2df7 ("scsi: libsas: Define NCQ Priority sysfs attributes for SATA devices") Signed-off-by: Damien Le Moal <dlemoal@xxxxxxxxxx>
Reviewed-by: John Garry <john.g.garry@xxxxxxxxxx>
Forgot to add John to the distribution list...--- drivers/scsi/libsas/sas_ata.c | 12 +++++++----- 1 file changed, 7 insertions(+), 5 deletions(-) diff --git a/drivers/scsi/libsas/sas_ata.c b/drivers/scsi/libsas/sas_ata.c index b57c041a5544..4c69fc63c119 100644 --- a/drivers/scsi/libsas/sas_ata.c +++ b/drivers/scsi/libsas/sas_ata.c @@ -981,7 +981,8 @@ static ssize_t sas_ncq_prio_supported_show(struct device *device, return sysfs_emit(buf, "%d\n", supported); }-DEVICE_ATTR(ncq_prio_supported, S_IRUGO, sas_ncq_prio_supported_show, NULL);+static struct device_attribute dev_attr_sas_ncq_prio_supported = + __ATTR(ncq_prio_supported, S_IRUGO, sas_ncq_prio_supported_show, NULL);static ssize_t sas_ncq_prio_enable_show(struct device *device,struct device_attribute *attr, @@ -1019,12 +1020,13 @@ static ssize_t sas_ncq_prio_enable_store(struct device *device, return len; }-DEVICE_ATTR(ncq_prio_enable, S_IRUGO | S_IWUSR,- sas_ncq_prio_enable_show, sas_ncq_prio_enable_store); +static struct device_attribute dev_attr_sas_ncq_prio_enable = + __ATTR(ncq_prio_enable, S_IRUGO | S_IWUSR, + sas_ncq_prio_enable_show, sas_ncq_prio_enable_store);static struct attribute *sas_ata_sdev_attrs[] = {- &dev_attr_ncq_prio_supported.attr, - &dev_attr_ncq_prio_enable.attr, + &dev_attr_sas_ncq_prio_supported.attr, + &dev_attr_sas_ncq_prio_enable.attr, NULL };
