net: wireless: use struct_size where appropriate
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Cover letter [PATCH 0/3] net: wireless: use struct_size where appropriate
This series fixes a few wireless drivers to use struct_size rather than open coding some equivalent checks. This ensures that these size calculations will not overflow but instead be bounded at SIZE_MAX.
In the first case, the code is first converted to a flexible array, which saves a few bytes of memory in addition to the fix with struct_size.
These were caught with a coccinelle patch I recently posted at [1].
[1]: https://lore.kernel.org/all/[email protected]/
Jacob Keller (3):
wifi: ipw2x00: convert ipw_fw_error->elem to flexible array[]
wifi: cfg80211: use struct_size and size_sub for payload length
wifi: nl80211: convert cfg80211_scan_request allocation to *_size
macros
drivers/net/wireless/intel/ipw2x00/ipw2200.c | 7 +++-- drivers/net/wireless/intel/ipw2x00/ipw2200.h | 3 +-- .../net/wireless/quantenna/qtnfmac/commands.c | 7 ++--- net/wireless/nl80211.c | 26 ++++++++++--------- 4 files changed, 22 insertions(+), 21 deletions(-)
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2.39.1.405.gd4c25cc71f83