On Fri, 12 Apr 2013, James Bottomley wrote:
[linux-scsi cc added]
On Fri, 2013-04-12 at 09:34 +0800, kbuild test robot wrote:
tree: git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi.git misc
head: 9e45dd73234af9a59613dc2989dcc2df2dab847f
commit: 8ae6d9c7eb1004bc134813287010d57a863ba13b [46/59] [SCSI] qla2xxx: Enhancements to support ISPFx00.
config: make ARCH=powerpc allmodconfig
All warnings:
drivers/scsi/qla2xxx/qla_mr.c: In function 'qlafx00_build_scsi_iocbs':
drivers/scsi/qla2xxx/qla_mr.c:3007:7: warning: large integer implicitly truncated to unsigned type [-Woverflow]
drivers/scsi/qla2xxx/qla_mr.c:3011:7: warning: large integer implicitly truncated to unsigned type [-Woverflow]
vim +3007 drivers/scsi/qla2xxx/qla_mr.c
3001 return;
3002 }
3003
3004 /* Set transfer direction */
3005 if (cmd->sc_data_direction == DMA_TO_DEVICE) {
3006 lcmd_pkt->cntrl_flags =
3007 __constant_cpu_to_le16(TMF_WRITE_DATA);
3008 vha->qla_stats.output_bytes += scsi_bufflen(cmd);
3009 } else if (cmd->sc_data_direction == DMA_FROM_DEVICE) {
3010 lcmd_pkt->cntrl_flags =
3011 __constant_cpu_to_le16(TMF_READ_DATA);
3012 vha->qla_stats.input_bytes += scsi_bufflen(cmd);
3013 }
3014
This is because of this definition in qla_mr.h:
struct cmd_type_7_fx00 {
...
uint8_t cntrl_flags;
Which means that the assignment produces zero on a BE platform. That
doesn't look right. Please fix.
James
Thanks for the head up James. Will send a fix soon.
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