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| author | Jakub Kicinski <kuba@kernel.org> | 2023-11-27 01:58:58 +0300 |
|---|---|---|
| committer | Jakub Kicinski <kuba@kernel.org> | 2023-11-29 19:44:02 +0300 |
| commit | 83f2df9d66bc9e1e0dbd5d5586a701088f6a1d42 (patch) | |
| tree | 3822914732906cc8c7025f66e8ba09a925f1add7 /tools/net/ynl/ynl-gen-c.py | |
| parent | cbeb989e41f4094f54bec2cecce993f26f547bea (diff) | |
| download | linux-83f2df9d66bc9e1e0dbd5d5586a701088f6a1d42.tar.xz | |
tools: ynl-gen: always construct struct ynl_req_state
struct ynl_req_state carries reply-related info from generated code
into generic YNL code. While we don't need reply info to execute
a request without a reply, we still need to pass in the struct, because
it's also where we get the pointer to struct ynl_sock from. Passing NULL
results in crashes if kernel returns an error or an unexpected reply.
Fixes: dc0956c98f11 ("tools: ynl-gen: move the response reading logic into YNL")
Link: https://lore.kernel.org/r/20231126225858.2144136-1-kuba@kernel.org
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Diffstat (limited to 'tools/net/ynl/ynl-gen-c.py')
| -rwxr-xr-x | tools/net/ynl/ynl-gen-c.py | 10 |
1 files changed, 4 insertions, 6 deletions
diff --git a/tools/net/ynl/ynl-gen-c.py b/tools/net/ynl/ynl-gen-c.py index 3bd6b928c14f..8337aa6de25e 100755 --- a/tools/net/ynl/ynl-gen-c.py +++ b/tools/net/ynl/ynl-gen-c.py @@ -1709,14 +1709,14 @@ def print_req(ri): ret_ok = '0' ret_err = '-1' direction = "request" - local_vars = ['struct nlmsghdr *nlh;', + local_vars = ['struct ynl_req_state yrs = { .yarg = { .ys = ys, }, };', + 'struct nlmsghdr *nlh;', 'int err;'] if 'reply' in ri.op[ri.op_mode]: ret_ok = 'rsp' ret_err = 'NULL' - local_vars += [f'{type_name(ri, rdir(direction))} *rsp;', - 'struct ynl_req_state yrs = { .yarg = { .ys = ys, }, };'] + local_vars += [f'{type_name(ri, rdir(direction))} *rsp;'] print_prototype(ri, direction, terminate=False) ri.cw.block_start() @@ -1732,7 +1732,6 @@ def print_req(ri): attr.attr_put(ri, "req") ri.cw.nl() - parse_arg = "NULL" if 'reply' in ri.op[ri.op_mode]: ri.cw.p('rsp = calloc(1, sizeof(*rsp));') ri.cw.p('yrs.yarg.data = rsp;') @@ -1742,8 +1741,7 @@ def print_req(ri): else: ri.cw.p(f'yrs.rsp_cmd = {ri.op.rsp_value};') ri.cw.nl() - parse_arg = '&yrs' - ri.cw.p(f"err = ynl_exec(ys, nlh, {parse_arg});") + ri.cw.p("err = ynl_exec(ys, nlh, &yrs);") ri.cw.p('if (err < 0)') if 'reply' in ri.op[ri.op_mode]: ri.cw.p('goto err_free;') |