On Tue, May 28, 2024 at 09:51:37PM +0800, Guangguan Wang wrote:

SG_MAX_SINGLE_ALLOC is used to limit maximum number of entries that
will be allocated in one piece of scatterlist. When the entries of
scatterlist exceeds SG_MAX_SINGLE_ALLOC, sg chain will be used. From
commit 7c703e54cc71 ("arch: switch the default on ARCH_HAS_SG_CHAIN"),
we can know that the macro CONFIG_ARCH_NO_SG_CHAIN is used to identify
whether sg chain is supported. So, SMC-R's rmb buffer should be limitted

Hi Guangguan Wang,

As it looks like there will be a v2:

In this patch: limitted -> limited
In patch 2/2:  defalut -> default

checkpatch.pl --codespell is your friend.

by SG_MAX_SINGLE_ALLOC only when the macro CONFIG_ARCH_NO_SG_CHAIN is
defined.

Signed-off-by: Guangguan Wang <redacted>
Co-developed-by: Wen Gu <guwen@linux.alibaba.com>
Signed-off-by: Wen Gu <guwen@linux.alibaba.com>
Fixes: a3fe3d01bd0d ("net/smc: introduce sg-logic for RMBs")

I think it is usual to put the fixes tag above the Signed-of tags,
although I don't see anything about that in [1].

[1] https://www.kernel.org/doc/html/latest/process/submitting-patches.html#using-reported-by-tested-by-reviewed-by-suggested-by-and-fixes

...