[patch] nvme: lightnvm: clean up a data type
Matias Bjorling
m at bjorling.me
Tue Nov 3 18:27:33 PST 2015
On 11/03/2015 11:45 PM, Busch, Keith wrote:
> Looks right to me. Adding Matias for the last word.
Thanks Keith and Dan. Looks good to me as well.
>
> On Tue, Nov 3, 2015, Dan Carpentar wrote:
>> "nlb_pr_rq" can't be more than u32 because "len" is a u32. Later we
>> truncate it to u32 anyway when we calculate min_t().
>>
>> Signed-off-by: Dan Carpenter <dan.carpenter at oracle.com>
>>
>> diff --git a/drivers/nvme/host/lightnvm.c b/drivers/nvme/host/lightnvm.c
>> index 133c839..e0b7b95 100644
>> --- a/drivers/nvme/host/lightnvm.c
>> +++ b/drivers/nvme/host/lightnvm.c
>> @@ -282,7 +282,7 @@ static int nvme_nvm_get_l2p_tbl(struct request_queue *q, u64 slba, u32 nlb,
>> struct nvme_dev *dev = ns->dev;
>> struct nvme_nvm_command c = {};
>> u32 len = queue_max_hw_sectors(q) << 9;
>> - u64 nlb_pr_rq = len / sizeof(u64);
>> + u32 nlb_pr_rq = len / sizeof(u64);
>> u64 cmd_slba = slba;
>> void *entries;
>> int ret = 0;
>> @@ -294,7 +294,7 @@ static int nvme_nvm_get_l2p_tbl(struct request_queue *q, u64 slba, u32 nlb,
>> return -ENOMEM;
>>
>> while (nlb) {
>> - u32 cmd_nlb = min_t(u32, nlb_pr_rq, nlb);
>> + u32 cmd_nlb = min(nlb_pr_rq, nlb);
>>
>> c.l2p.slba = cpu_to_le64(cmd_slba);
>> c.l2p.nlb = cpu_to_le32(cmd_nlb);
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