tjh.dev / kernel
Linux kernel mirror (for testing) git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
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RDMA/efa: Remove possible negative shift

The page size used for device might in some cases be smaller than
PAGE_SIZE what results in a negative shift when calculating the number of
host pages in PAGE_SIZE for a debug log. Remove the debug line together
with the calculation.

Fixes: 40909f664d27 ("RDMA/efa: Add EFA verbs implementation")
Link: https://patch.msgid.link/r/20251210173656.8180-1-mrgolin@amazon.com
Reviewed-by: Tom Sela <tomsela@amazon.com>
Reviewed-by: Yonatan Nachum <ynachum@amazon.com>
Signed-off-by: Michael Margolin <mrgolin@amazon.com>
Reviewed-by: Gal Pressman <gal.pressman@linux.dev>
Signed-off-by: Jason Gunthorpe <jgg@nvidia.com>

authored by

Michael Margolin and committed by
Jason Gunthorpe 85463eb6 c1776ccb

-4
-4
drivers/infiniband/hw/efa/efa_verbs.c
··· 1320 1320 u32 hp_cnt, 1321 1321 u8 hp_shift) 1322 1322 { 1323 - u32 pages_in_hp = BIT(hp_shift - PAGE_SHIFT); 1324 1323 struct ib_block_iter biter; 1325 1324 unsigned int hp_idx = 0; 1326 - 1327 - ibdev_dbg(&dev->ibdev, "hp_cnt[%u], pages_in_hp[%u]\n", 1328 - hp_cnt, pages_in_hp); 1329 1325 1330 1326 rdma_umem_for_each_dma_block(umem, &biter, BIT(hp_shift)) 1331 1327 page_list[hp_idx++] = rdma_block_iter_dma_address(&biter);