Install

git clone --recursive https://github.com/vimuxx/.vim.git ~/.vim/
echo source ~/.vim/vimrc >> ~/.vimrc

LSP	bash	npm install -g bash-language-server
	c	apt install clangd
	python	npm install -g pyright
cscope	apt install cscope
cs	ln -s ~/.vim/pack/foo/start/cscope_maps.vim/cs ~/.local/bin/

Update

git fetch
git checkout origin/master
git submodule update --init

Key Bindings

		LSP	LSP cmd		cscope	cscope cmd		ctags
Code Action		Ctrl_\ A	:LspCodeAction
Call		Ctrl_\ C	:LspCallHierarchyIncoming		Ctrl_\ c	:cs f c ...
File					Ctrl_\ f	:cs f f ...
Definaion		Ctrl_\ G	:LspDefinition		Ctrl_\ g	:cs f g ...		Ctrl_]
Diagnostics			:LspDocumentDiagnostics
Hover		Ctrl_\ H	:LspHover
Hover Down		Ctrl_j
Hover Up		Ctrl_k
Snippet		Ctrl_l
Rename		Ctrl_\ R	:LspRename
References		Ctrl_\ S	:LspReferences		Ctrl_\ s	:cs f s ...
Status			:LspStatus
text string					Ctrl_\ t	:cs f t ...
egrep pattern					Ctrl_\ e	:cs f e ...
go back								Ctrl_t

Insert mode ( for Linux Kernel )

		printk	level	color
PK!		pr_alert	1	red
PK@		pr_crit	2	green
PK#		pr_err	3	brown
PK$		pr_warn	4	blue
PK%		pr_notice	5	magenta
PK^		pr_info	6	cyan
PK&		WARN		white
PK*		print_hex_dump

Additionally

One .clangd example

CompileFlags:
  Remove:
    - -mabi=lp64
    - -fconserve-stack
    - -fno-ipa-sra
    - -fno-var-tracking-assignments
    - -mno-thumb-interwork
    - -mno-sched-prolg
    - -mno-sched-prolog
    - -mapcs
Diagnostics:
  Suppress:
    - '*'