| Commit message (Collapse) | Author | Age |
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There is potential integer truncation in the wcnss_prealloc_get api.
size_t is 8 byte on x64 platform and "unsigned int" is 4 byte.
To avoid this integer truncation, pass size as size_t instead
of unsigned int.
CRs-Fixed: 2269610
Change-Id: I14b274dd7cad98b55fdce1aaa27783272231afde
Signed-off-by: Anurag Chouhan <achouhan@codeaurora.org>
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The WLAN host driver is allocating the memory from pre-alloc pool
during insmod/wlan start up before WLAN driver register and
release the pre-alloc memory after driver unregister/remove.
The Pre-alloc memory leak check and reset in Icnss platform driver
on probe failure and after remove will leads to invalid memory
leak stat and dangling pointer for wlan host driver allocated memory
from the pre-alloc memory pool.
To fix the above issue remove the pre-allaoc memory leak
check and pre-alloc memory pool reset from the icnss platform
driver and export symbol for the pre-alloc memory leak check
and pre-alloc memory pool reset.
CRs-Fixed: 2039483
Change-Id: Id9f01c9d2b5184fbb58935eaf11fd21b50b47908
Signed-off-by: Hardik Kantilal Patel <hkpatel@codeaurora.org>
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WARN_ON is unnecessary if pre-alloc table doesn't have any free
memory. Remove the WARN_ON as error log is enough to find out
missing entry.
Change-Id: I5a46e1f259e88d1a19f05195f5d7bb0745d072c3
CRs-fixed: 2030272
Signed-off-by: Prashanth Bhatta <bhattap@codeaurora.org>
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After wlan host driver probe failure and driver unload check the
memory leak and reset the memory pool.
CRs-Fixed: 2027407
Change-Id: Id6e413416ec7ea1d1bf0e69aab7eccb06de753d7
Signed-off-by: Hardik Kantilal Patel <hkpatel@codeaurora.org>
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This feature adds support to check the pre allocated memory
pool status at runtime. This debugfs entry provide the required
information for wlan host driver memory profiling and adds support
to debug the pre-alloc memory failure issue.
feature:
1. Total amount of pre-alloc memory avail and used in the
memory pool.
2. Pre-alloc memory status per slots(used/free).
CRs-Fixed: 2027352
Change-Id: I61c51f93dd7462b1fa9c36f6eea3814a6acbdd34
Signed-off-by: Sarada Prasanna Garnayak <sgarna@codeaurora.org>
Signed-off-by: Hardik Kantilal Patel <hkpatel@codeaurora.org>
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Update pre-alloc table with new memory requirement from WLAN
functional driver.
Change-Id: I2edc8ca0d2361e51f83af405c7d97fba91bf96f5
CRs-fixed: 2017525
Signed-off-by: Prashanth Bhatta <bhattap@codeaurora.org>
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Dump the call stack if there is no memory available from the prealloc
pool in order to get the source of the memory allocation.
Change-Id: I0b523e82638410ea679f1d9d3f4bb56703ed9100
Signed-off-by: Yue Ma <yuem@codeaurora.org>
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wlan driver transport layer pdev handler needs 128kb pre allocated
memory in a single block memory allocation for transmit/receive
descriptor initialization in wlan startup for the wlan module with
high latency(SDIO) based hardware interface.
CRs-Fixed: 978073
Change-Id: I0dbe047a7b64e96bf32470702d1b3e3088bffcf7
Signed-off-by: Sarada Prasanna Garnayak <sgarna@codeaurora.org>
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The memory size of a slot in the prealloc table should be order of 2,
otherwise some memory will be wasted since kernel only allocates
contiguous physical memory in pages by order of 2.
Change-Id: I762ad490d300f8b622a3ed1f9ccbe2af2d926c49
Signed-off-by: Yue Ma <yuem@codeaurora.org>
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Currently the driver gives a memory slot only if its size is greater
than the memory requested by the caller. This will waste a bigger slot
if the memory requested is equal to the slot size. Hence fix it by
adding the equal check when a memory slot is requested.
Change-Id: Ib48477607e9332c8942894301ead606a31fa3284
Signed-off-by: Yue Ma <yuem@codeaurora.org>
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The cnss crypto add support for wlan host driver for security
Protocol and cipher key generation where cnss memory pre-alloc
feature enable wlan driver to use pre allocated memory
for its internal usage and release it to back to pre-allocated pool.
Decouple cnss crypto from cnss memory pre-alloc and add kernel
config flag for this crypto module compilation and update
the defocnfig of required targets.
CRs-Fixed: 949992
Change-Id: If34819fd76076ba522a9a42ac41fdae1f541f5c8
Signed-off-by: Sarada Prasanna Garnayak <sgarna@codeaurora.org>
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This is a snapshot of the cnss prealloc driver and associated files
as of msm-3.18 commit:
e70ad0cd5efdd9dc91a77dcdac31d6132e1315c1 (Promotion of kernel.lnx.
3.18-151201.)
Signed-off-by: Yue Ma <yuem@codeaurora.org>
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