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Commit 421c6622 authored by James Smart's avatar James Smart Committed by James Bottomley
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[SCSI] lpfc 8.3.37: Fixed infinite loop in lpfc_sli4_fcf_rr_next_index_get. 



Signed-off-by: default avatarJames Smart <james.smart@emulex.com>
Signed-off-by: default avatarJames Bottomley <JBottomley@Parallels.com>
parent 0a630c27

drivers/scsi/lpfc/lpfc_sli.c

+6 −3
Original line number Diff line number Diff line
@@ -15556,10 +15556,13 @@ lpfc_sli4_fcf_rr_next_index_get(struct lpfc_hba *phba) 
{

	uint16_t next_fcf_index;



initial_priority:

	/* Search start from next bit of currently registered FCF index */

	next_fcf_index = phba->fcf.current_rec.fcf_indx;



next_priority:

	next_fcf_index = (phba->fcf.current_rec.fcf_indx + 1) %

					LPFC_SLI4_FCF_TBL_INDX_MAX;

	/* Determine the next fcf index to check */

	next_fcf_index = (next_fcf_index + 1) % LPFC_SLI4_FCF_TBL_INDX_MAX;

	next_fcf_index = find_next_bit(phba->fcf.fcf_rr_bmask,

				       LPFC_SLI4_FCF_TBL_INDX_MAX,

				       next_fcf_index);
@@ -15586,7 +15589,7 @@ lpfc_sli4_fcf_rr_next_index_get(struct lpfc_hba *phba) 
		 * at that level and continue the selection process.

		 */

		if (lpfc_check_next_fcf_pri_level(phba))

			goto next_priority;

			goto initial_priority;

		lpfc_printf_log(phba, KERN_WARNING, LOG_FIP,

				"2844 No roundrobin failover FCF available\n");

		if (next_fcf_index >= LPFC_SLI4_FCF_TBL_INDX_MAX)