Messages in this thread Patch in this message | | | From | Lee Jones <> | Subject | [PATCH 13/40] scsi: qla4xxx: ql4_init: Check return value of pci_set_mwi() | Date | Tue, 21 Jul 2020 17:41:21 +0100 |
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pci_set_mwi() has 'warn_unused_result' so the result should be checked.
Fixes the following W=1 kernel build warning(s):
drivers/scsi/qla4xxx/ql4_init.c: In function ‘qla4xxx_pci_config’: drivers/scsi/qla4xxx/ql4_init.c:664:6: warning: variable ‘status’ set but not used [-Wunused-but-set-variable]
And if 'status' is removed:
drivers/scsi/qla4xxx/ql4_init.c: In function ‘qla4xxx_pci_config’: drivers/scsi/qla4xxx/ql4_init.c:666:2: warning: ignoring return value of ‘pci_set_mwi’, declared with attribute warn_unused_result [-Wunused-result] 666 | pci_set_mwi(ha->pdev); | ^~~~~~~~~~~~~~~~~~~~~
Cc: QLogic-Storage-Upstream@qlogic.com Signed-off-by: Lee Jones <lee.jones@linaro.org> --- drivers/scsi/qla4xxx/ql4_init.c | 3 +++ 1 file changed, 3 insertions(+)
diff --git a/drivers/scsi/qla4xxx/ql4_init.c b/drivers/scsi/qla4xxx/ql4_init.c index 82f6e7f3969ec..4afd43610f68f 100644 --- a/drivers/scsi/qla4xxx/ql4_init.c +++ b/drivers/scsi/qla4xxx/ql4_init.c @@ -665,6 +665,9 @@ void qla4xxx_pci_config(struct scsi_qla_host *ha) pci_set_master(ha->pdev); status = pci_set_mwi(ha->pdev); + if (status) + ql4_printk(KERN_WARNING, ha, "Failed to set MWI\n"); + /* * We want to respect framework's setting of PCI configuration space * command register and also want to make sure that all bits of -- 2.25.1
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