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Re: [Qemu-devel] [PATCH for-2.12] rdma: Fix 32-bit compilation
From: |
Marcel Apfelbaum |
Subject: |
Re: [Qemu-devel] [PATCH for-2.12] rdma: Fix 32-bit compilation |
Date: |
Wed, 21 Mar 2018 18:52:48 +0200 |
User-agent: |
Mozilla/5.0 (Macintosh; Intel Mac OS X 10.13; rv:52.0) Gecko/20100101 Thunderbird/52.6.0 |
On 20/03/2018 12:43, Yuval Shaia wrote:
> On Mon, Mar 19, 2018 at 04:53:35PM -0500, Eric Blake wrote:
>> Use the correct printf formats, so that a 32-bit compile doesn't
>> spit out lots of warnings about %lx being incompatible with uint64_t.
>> Broken since initial commit ef6d4ccd.
>>
>> Signed-off-by: Eric Blake <address@hidden>
>> ---
>>
>> I don't know if 'make vm-build-ubuntu.i368' would catch this (it failed
>> for me for other reasons); I found it via a 32-bit rawhide VM.
>>
>> hw/rdma/rdma_backend.c | 3 ++-
>> 1 file changed, 2 insertions(+), 1 deletion(-)
>>
>> diff --git a/hw/rdma/rdma_backend.c b/hw/rdma/rdma_backend.c
>> index e306fba5344..89020fdcf62 100644
>> --- a/hw/rdma/rdma_backend.c
>> +++ b/hw/rdma/rdma_backend.c
>> @@ -656,7 +656,8 @@ void rdma_backend_destroy_qp(RdmaBackendQP *qp)
>> #define CHK_ATTR(req, dev, member, fmt) ({ \
>> pr_dbg("%s="fmt","fmt"\n", #member, dev.member, req->member); \
>> if (req->member > dev.member) { \
>> - warn_report("%s = 0x%lx is higher than host device capability
>> 0x%lx", \
>> + warn_report("%s = 0x%" PRIx64 " is higher than host device " \
>> + "capability 0x%" PRIx64, \
>> #member, (uint64_t)req->member, (uint64_t)dev.member); \
>
> Hmmm, interesting.
> I wonder why in first place to cast all members to uint64_t.
> Can you try the method that is used above in the call to pr_dbg, i.e. to
> use the given argument fmt?
> > Something like this:
> warn_report("%s = "fmt" is higher than host device capability "fmt, \
> #member, req->member, dev.member); \
>
>> req->member = dev.member; \
>> } \
Right, it seems to be a better solution.
Eric/Yuval, will you send a patch for it?
Thanks!
Marcel
>> --
>> 2.14.3
>>