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In the past %pK was preferable to %p as it would not leak raw pointer
values into the kernel log.
Since commit ad67b74d2469 ("printk: hash addresses printed with %p")
the regular %p has been improved to avoid this issue.
Furthermore, restricted pointers ("%pK") were never meant to be used
through printk(). They can still unintentionally leak raw pointers or
acquire sleeping looks in atomic contexts.
Switch to the regular pointer formatting which is safer and
easier to reason about.
Signed-off-by: Thomas Weißschuh <thomas.weissschuh@linutronix.de>
Link: https://patch.msgid.link/20250407-restricted-pointers-infiniband-v1-1-22b20504b84d@linutronix.de
Signed-off-by: Leon Romanovsky <leon@kernel.org>
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Documentation/process/license-rules.rst and checkpatch expect the SPDX
identifier syntax for multiple licenses to use capital "OR". Correct it
to keep consistent format and avoid copy-paste issues.
Signed-off-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
Link: https://lore.kernel.org/r/20230823092912.122674-1-krzysztof.kozlowski@linaro.org
Signed-off-by: Leon Romanovsky <leon@kernel.org>
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Refactor PBLE functions using a bit mask to represent the PBLE level
desired versus 2 parameters use_pble and lvl_one_only which makes the
code confusing.
Signed-off-by: Mustafa Ismail <mustafa.ismail@intel.com>
Signed-off-by: Sindhu Devale <sindhu.devale@intel.com>
Link: https://lore.kernel.org/r/20230315145305.955-5-shiraz.saleem@intel.com
Signed-off-by: Leon Romanovsky <leon@kernel.org>
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Replace use of custom irdma_status_code with linux error codes.
Remove enum irdma_status_code and header in which its defined.
Link: https://lore.kernel.org/r/20220217151851.1518-2-shiraz.saleem@intel.com
Signed-off-by: Shiraz Saleem <shiraz.saleem@intel.com>
Signed-off-by: Jason Gunthorpe <jgg@nvidia.com>
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'irdma_prm_add_pble_mem()'
'pchunk->bitmapbuf' is a bitmap. Its size (in number of bits) is stored in
'pchunk->sizeofbitmap'.
When it is allocated, the size (in bytes) is computed by:
size_in_bits >> 3
There are 2 issues (numbers bellow assume that longs are 64 bits):
- there is no guarantee here that 'pchunk->bitmapmem.size' is modulo
BITS_PER_LONG but bitmaps are stored as longs
(sizeofbitmap=8 bits will only allocate 1 byte, instead of 8 (1 long))
- the number of bytes is computed with a shift, not a round up, so we
may allocate less memory than needed
(sizeofbitmap=65 bits will only allocate 8 bytes (i.e. 1 long), when 2
longs are needed = 16 bytes)
Fix both issues by using 'bitmap_zalloc()' and remove the useless
'bitmapmem' from 'struct irdma_chunk'.
While at it, remove some useless NULL test before calling
kfree/bitmap_free.
Fixes: 915cc7ac0f8e ("RDMA/irdma: Add miscellaneous utility definitions")
Link: https://lore.kernel.org/r/5e670b640508e14b1869c3e8e4fb970d78cbe997.1638692171.git.christophe.jaillet@wanadoo.fr
Signed-off-by: Christophe JAILLET <christophe.jaillet@wanadoo.fr>
Reviewed-by: Shiraz Saleem <shiraz.saleem@intel.com>
Signed-off-by: Jason Gunthorpe <jgg@nvidia.com>
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When irdma_hmc_sd_one fails, 'chunk' is freed while its still on the PBLE
info list.
Add the chunk entry to the PBLE info list only after successful setting of
the SD in irdma_hmc_sd_one.
Fixes: e8c4dbc2fcac ("RDMA/irdma: Add PBLE resource manager")
Link: https://lore.kernel.org/r/20211207152135.2192-1-shiraz.saleem@intel.com
Reported-by: Dan Carpenter <dan.carpenter@oracle.com>
Signed-off-by: Shiraz Saleem <shiraz.saleem@intel.com>
Signed-off-by: Jason Gunthorpe <jgg@nvidia.com>
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The level1 PBL info address is stored as u64. This requires casting
through a uinptr_t before used as a pointer type.
And this leads to sparse warning such as this when uinptr_t is missing:
drivers/infiniband/hw/irdma/hw.c: In function 'irdma_destroy_virt_aeq':
drivers/infiniband/hw/irdma/hw.c:579:23: warning: cast to pointer from integer of different size [-Wint-to-pointer-cast]
579 | dma_addr_t *pg_arr = (dma_addr_t *)aeq->palloc.level1.addr;
This can be fixed using an intermediate uintptr_t, but rather it is better
to fix the structure irdm_pble_info to store the address as u64* and the
VA it is assigned in irdma_chunk as a void*. This greatly reduces the
casting on this address.
Fixes: 44d9e52977a1 ("RDMA/irdma: Implement device initialization definitions")
Link: https://lore.kernel.org/r/20210609234924.938-1-shiraz.saleem@intel.com
Reported-by: kernel test robot <lkp@intel.com>
Signed-off-by: Shiraz Saleem <shiraz.saleem@intel.com>
Signed-off-by: Jason Gunthorpe <jgg@nvidia.com>
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Implement a Physical Buffer List Entry (PBLE) resource manager
to manage a pool of PBLE HMC resource objects.
Link: https://lore.kernel.org/r/20210602205138.889-9-shiraz.saleem@intel.com
Signed-off-by: Mustafa Ismail <mustafa.ismail@intel.com>
Signed-off-by: Shiraz Saleem <shiraz.saleem@intel.com>
Signed-off-by: Jason Gunthorpe <jgg@nvidia.com>
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