mirrors/linux-stable
1
0
Fork 0
mirror of https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git synced 2024-09-27 12:57:53 +00:00
Code Issues Releases Wiki Activity

scsi: pm8001: Setup IRQs on resume

Browse source 
The function pm8001_pci_resume() only calls pm8001_request_irq() without
calling pm8001_setup_irq(). This causes the IRQ allocation to fail, which
leads all drives being removed from the system.

Fix this issue by integrating the code for pm8001_setup_irq() directly
inside pm8001_request_irq() so that MSI-X setup is performed both during
normal initialization and resume operations.

Fixes: dbf9bfe615 ("[SCSI] pm8001: add SAS/SATA HBA driver")
Cc: stable@vger.kernel.org
Signed-off-by: Damien Le Moal <dlemoal@kernel.org>
Link: https://lore.kernel.org/r/20230911232745.325149-2-dlemoal@kernel.org
Acked-by: Jack Wang <jinpu.wang@ionos.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
This commit is contained in:
Damien Le Moal 2023-09-12 08:27:36 +09:00 committed by Martin K. Petersen
parent c13e733174
commit c91774818b
1 changed files with 17 additions and 34 deletions
Show stats Download patch file Download diff file Expand all files Collapse all files

51
drivers/scsi/pm8001/pm8001_init.c
View file

@ -273,7 +273,6 @@ static irqreturn_t pm8001_interrupt_handler_intx(int irq, void *dev_id)
return ret;
}
static u32 pm8001_setup_irq(struct pm8001_hba_info *pm8001_ha);
static u32 pm8001_request_irq(struct pm8001_hba_info *pm8001_ha);
/**
@ -294,13 +293,6 @@ static int pm8001_alloc(struct pm8001_hba_info *pm8001_ha,
pm8001_dbg(pm8001_ha, INIT, "pm8001_alloc: PHY:%x\n",
pm8001_ha->chip->n_phy);
/* Setup Interrupt */
rc = pm8001_setup_irq(pm8001_ha);
if (rc) {
pm8001_dbg(pm8001_ha, FAIL,
"pm8001_setup_irq failed [ret: %d]\n", rc);
goto err_out;
}
/* Request Interrupt */
rc = pm8001_request_irq(pm8001_ha);
if (rc)
@ -1031,47 +1023,38 @@ static u32 pm8001_request_msix(struct pm8001_hba_info *pm8001_ha)
}
#endif
static u32 pm8001_setup_irq(struct pm8001_hba_info *pm8001_ha)
{
struct pci_dev *pdev;
pdev = pm8001_ha->pdev;
#ifdef PM8001_USE_MSIX
if (pci_find_capability(pdev, PCI_CAP_ID_MSIX))
return pm8001_setup_msix(pm8001_ha);
pm8001_dbg(pm8001_ha, INIT, "MSIX not supported!!!\n");
#endif
return 0;
}
/**
* pm8001_request_irq - register interrupt
* @pm8001_ha: our ha struct.
*/
static u32 pm8001_request_irq(struct pm8001_hba_info *pm8001_ha)
{
struct pci_dev *pdev;
struct pci_dev *pdev = pm8001_ha->pdev;
#ifdef PM8001_USE_MSIX
int rc;
pdev = pm8001_ha->pdev;
if (pci_find_capability(pdev, PCI_CAP_ID_MSIX)) {
rc = pm8001_setup_msix(pm8001_ha);
if (rc) {
pm8001_dbg(pm8001_ha, FAIL,
"pm8001_setup_irq failed [ret: %d]\n", rc);
return rc;
}
#ifdef PM8001_USE_MSIX
if (pdev->msix_cap && pci_msi_enabled())
return pm8001_request_msix(pm8001_ha);
else {
pm8001_dbg(pm8001_ha, INIT, "MSIX not supported!!!\n");
goto intx;
if (pdev->msix_cap && pci_msi_enabled())
return pm8001_request_msix(pm8001_ha);
}
pm8001_dbg(pm8001_ha, INIT, "MSIX not supported!!!\n");
#endif
intx:
/* initialize the INT-X interrupt */
pm8001_ha->irq_vector[0].irq_id = 0;
pm8001_ha->irq_vector[0].drv_inst = pm8001_ha;
rc = request_irq(pdev->irq, pm8001_interrupt_handler_intx, IRQF_SHARED,
pm8001_ha->name, SHOST_TO_SAS_HA(pm8001_ha->shost));
return rc;
return request_irq(pdev->irq, pm8001_interrupt_handler_intx,
IRQF_SHARED, pm8001_ha->name,
SHOST_TO_SAS_HA(pm8001_ha->shost));
}
/**