6.1-stable review patch. If anyone has any objections, please let me know.
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From: Jacob Moroni jmoroni@google.com
[ Upstream commit 8d158f47f1f33d8747e80c3afbea5aa337e59d41 ]
In some cases, it is possible for pble_rsrc->next_fpm_addr to be larger than u32, so remove the u32 cast to avoid unintentional truncation.
This fixes the following error that can be observed when registering massive memory regions:
[ 447.227494] (NULL ib_device): cqp opcode = 0x1f maj_err_code = 0xffff min_err_code = 0x800c [ 447.227505] (NULL ib_device): [Update PE SDs Cmd Error][op_code=21] status=-5 waiting=1 completion_err=1 maj=0xffff min=0x800c
Fixes: e8c4dbc2fcac ("RDMA/irdma: Add PBLE resource manager") Signed-off-by: Jacob Moroni jmoroni@google.com Link: https://patch.msgid.link/20250923190850.1022773-1-jmoroni@google.com Acked-by: Tatyana Nikolova tatyana.e.nikolova@intel.com Signed-off-by: Leon Romanovsky leon@kernel.org Signed-off-by: Sasha Levin sashal@kernel.org --- drivers/infiniband/hw/irdma/pble.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/drivers/infiniband/hw/irdma/pble.c b/drivers/infiniband/hw/irdma/pble.c index cdc0b8a6ed483..8dd9e44ed2a4c 100644 --- a/drivers/infiniband/hw/irdma/pble.c +++ b/drivers/infiniband/hw/irdma/pble.c @@ -71,7 +71,7 @@ int irdma_hmc_init_pble(struct irdma_sc_dev *dev, static void get_sd_pd_idx(struct irdma_hmc_pble_rsrc *pble_rsrc, struct sd_pd_idx *idx) { - idx->sd_idx = (u32)pble_rsrc->next_fpm_addr / IRDMA_HMC_DIRECT_BP_SIZE; + idx->sd_idx = pble_rsrc->next_fpm_addr / IRDMA_HMC_DIRECT_BP_SIZE; idx->pd_idx = (u32)(pble_rsrc->next_fpm_addr / IRDMA_HMC_PAGED_BP_SIZE); idx->rel_pd_idx = (idx->pd_idx % IRDMA_HMC_PD_CNT_IN_SD); }