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Fix other warnings

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Most were harmless, but the change to ACCESS_ONCE from volatile
cast is probably useful.
Expanding macro, we basically went from:
    m = (volatile struct sdma_vl_map *)dd->sdma_map;
to
    m = *(volatile struct sdma_vl_map **)&(dd->sdma_map);
i.e. the explicit lookup is at a different level.
This commit is contained in:
Dominique Martinet
2017-09-15 11:16:36 +09:00
committed by Balazs Gerofi
parent 2dc85ee417
commit 7366da4390
5 changed files with 18 additions and 19 deletions
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13
kernel/user_sdma.c
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@@ -559,7 +559,9 @@ int hfi1_map_device_addresses(struct hfi1_filedata *fd)
pte_t *ptep;
enum ihk_mc_pt_attribute attr;
void *virt;
#ifdef __HFI1_ORIG__
size_t pgsize;
#endif
unsigned long phys;
unsigned long len;
@@ -1134,12 +1136,14 @@ int hfi1_user_sdma_process_request(void *private_data, struct iovec *iovec,
hfi1_cdbg(AIOWRITE, "-wait_event_interruptible_timeout");
#else
TP("+ polling while(pq->state != SDMA_PKT_Q_ACTIVE)");
#ifdef VERBOSE_DEBUG
{
unsigned long ts = rdtsc();
while (pq->state != SDMA_PKT_Q_ACTIVE) cpu_pause();
SDMA_DBG("%s: waited %lu cycles for SDMA_PKT_Q_ACTIVE\n",
__FUNCTION__, rdtsc() - ts);
}
#endif /* VERBOSE_DEBUG */
TP("- polling while(pq->state != SDMA_PKT_Q_ACTIVE)");
#endif /* __HFI1_ORIG__ */
}
@@ -1233,7 +1237,8 @@ static int user_sdma_send_pkts(struct user_sdma_request *req,
unsigned maxpkts,
struct kmalloc_cache_header *txreq_cache)
{
int ret = 0, count;
int ret = 0;
u32 count;
unsigned npkts = 0;
struct user_sdma_txreq *tx = NULL;
struct hfi1_user_sdma_pkt_q *pq = NULL;
@@ -1437,11 +1442,11 @@ static int user_sdma_send_pkts(struct user_sdma_request *req,
unsigned pageidx;
#endif
unsigned len;
unsigned long base, offset;
uintptr_t base;
void *virt;
base = (unsigned long)iovec->iov.iov_base;
virt = base + iovec->offset + iov_offset;
base = (uintptr_t)iovec->iov.iov_base;
virt = (void*)(base + iovec->offset + iov_offset);
/*
* Resolve iovec->base_phys if virt is out of last page.