rds: rds_rm_zerocopy_callback() use list_first_entry()
[ Upstream commit f753a689 ] rds_rm_zerocopy_callback() uses list_entry() on the head of a list causing a type confusion. Use list_first_entry() to actually access the first element of the rs_zcookie_queue list. Fixes: 9426bbc6 ("rds: use list structure to track information for zerocopy completion notification") Reviewed-by: Willem de Bruijn <willemb@google.com> Signed-off-by: Pietro Borrello <borrello@diag.uniroma1.it> Link: https://lore.kernel.org/r/20230202-rds-zerocopy-v3-1-83b0df974f9a@diag.uniroma1.it Signed-off-by: Paolo Abeni <pabeni@redhat.com> Signed-off-by: Sasha Levin <sashal@kernel.org>
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