openkylin
/
linux
mirror of https://gitee.com/openkylin/linux.git
9
0
Fork 0
Code Issues Projects Releases Wiki Activity

scsi: qla2xxx: Simplify qla8044_minidump_process_control() 

This patch fixes the following Coverity complaint:

    CID 177490 (#1 of 1): Unused value (UNUSED_VALUE)
    assigned_value: Assigning value from opcode & 0xffffff7fU to opcode
    here, but that stored value is overwritten before it can be used.

Link: https://lore.kernel.org/r/20210320232359.941-6-bvanassche@acm.org
Cc: Quinn Tran <qutran@marvell.com>
Cc: Mike Christie <michael.christie@oracle.com>
Reviewed-by: Daniel Wagner <dwagner@suse.de>
Reviewed-by: Himanshu Madhani <himanshu.madhani@oracle.com>
Reviewed-by: Lee Duncan <lduncan@suse.com>
Signed-off-by: Bart Van Assche <bvanassche@acm.org>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
This commit is contained in:
Bart Van Assche 2021-03-20 16:23:57 -07:00 committed by Martin K. Petersen
parent 17603237f7
commit a20821e3f4
1 changed files with 0 additions and 8 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

8
drivers/scsi/qla2xxx/qla_nx2.c
View File

@ -2226,19 +2226,16 @@ qla8044_minidump_process_control(struct scsi_qla_host *vha,
if (opcode & QLA82XX_DBG_OPCODE_WR) {
qla8044_wr_reg_indirect(vha, crb_addr,
crb_entry->value_1);
opcode &= ~QLA82XX_DBG_OPCODE_WR;
}
if (opcode & QLA82XX_DBG_OPCODE_RW) {
qla8044_rd_reg_indirect(vha, crb_addr, &read_value);
qla8044_wr_reg_indirect(vha, crb_addr, read_value);
opcode &= ~QLA82XX_DBG_OPCODE_RW;
}
if (opcode & QLA82XX_DBG_OPCODE_AND) {
qla8044_rd_reg_indirect(vha, crb_addr, &read_value);
read_value &= crb_entry->value_2;
opcode &= ~QLA82XX_DBG_OPCODE_AND;
if (opcode & QLA82XX_DBG_OPCODE_OR) {
read_value |= crb_entry->value_3;
opcode &= ~QLA82XX_DBG_OPCODE_OR;
@ -2249,7 +2246,6 @@ qla8044_minidump_process_control(struct scsi_qla_host *vha,
qla8044_rd_reg_indirect(vha, crb_addr, &read_value);
read_value |= crb_entry->value_3;
qla8044_wr_reg_indirect(vha, crb_addr, read_value);
opcode &= ~QLA82XX_DBG_OPCODE_OR;
}
if (opcode & QLA82XX_DBG_OPCODE_POLL) {
poll_time = crb_entry->crb_strd.poll_timeout;
@ -2269,7 +2265,6 @@ qla8044_minidump_process_control(struct scsi_qla_host *vha,
crb_addr, &read_value);
}
} while (1);
opcode &= ~QLA82XX_DBG_OPCODE_POLL;
}
if (opcode & QLA82XX_DBG_OPCODE_RDSTATE) {
@ -2283,7 +2278,6 @@ qla8044_minidump_process_control(struct scsi_qla_host *vha,
qla8044_rd_reg_indirect(vha, addr, &read_value);
index = crb_entry->crb_ctrl.state_index_v;
tmplt_hdr->saved_state_array[index] = read_value;
opcode &= ~QLA82XX_DBG_OPCODE_RDSTATE;
}
if (opcode & QLA82XX_DBG_OPCODE_WRSTATE) {
@ -2303,7 +2297,6 @@ qla8044_minidump_process_control(struct scsi_qla_host *vha,
}
qla8044_wr_reg_indirect(vha, addr, read_value);
opcode &= ~QLA82XX_DBG_OPCODE_WRSTATE;
}
if (opcode & QLA82XX_DBG_OPCODE_MDSTATE) {
@ -2316,7 +2309,6 @@ qla8044_minidump_process_control(struct scsi_qla_host *vha,
read_value |= crb_entry->value_3;
read_value += crb_entry->value_1;
tmplt_hdr->saved_state_array[index] = read_value;
opcode &= ~QLA82XX_DBG_OPCODE_MDSTATE;
}
crb_addr += crb_entry->crb_strd.addr_stride;
}