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https://github.com/BobTheBlinker/android_kernel_motorola_sm6375.git
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cec562fbf8
[ Upstream commit dd3e7cba16274831f5a69f071ed3cf13ffb352ea ] There are users already and will be more of BITS_TO_BYTES() macro. Move it to bitops.h for wider use. In the case of ocfs2 the replacement is identical. As for bnx2x, there are two places where floor version is used. In the first case to calculate the amount of structures that can fit one memory page. In this case obviously the ceiling variant is correct and original code might have a potential bug, if amount of bits % 8 is not 0. In the second case the macro is used to calculate bytes transmitted in one microsecond. This will work for all speeds which is multiply of 1Gbps without any change, for the rest new code will give ceiling value, for instance 100Mbps will give 13 bytes, while old code gives 12 bytes and the arithmetically correct one is 12.5 bytes. Further the value is used to setup timer threshold which in any case has its own margins due to certain resolution. I don't see here an issue with slightly shifting thresholds for low speed connections, the card is supposed to utilize highest available rate, which is usually 10Gbps. Link: http://lkml.kernel.org/r/20200108121316.22411-1-andriy.shevchenko@linux.intel.com Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com> Reviewed-by: Joseph Qi <joseph.qi@linux.alibaba.com> Acked-by: Sudarsana Reddy Kalluru <skalluru@marvell.com> Cc: Mark Fasheh <mark@fasheh.com> Cc: Joel Becker <jlbec@evilplan.org> Cc: Junxiao Bi <junxiao.bi@oracle.com> Cc: Changwei Ge <gechangwei@live.cn> Cc: Gang He <ghe@suse.com> Cc: Jun Piao <piaojun@huawei.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org> Stable-dep-of: f4e4534850a9 ("net/netlink: fix NETLINK_LIST_MEMBERSHIPS length report") Signed-off-by: Sasha Levin <sashal@kernel.org> |
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