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SubjectRe: [PATCH] IB/uverbs: Add missing braces in anonymous union initializers
On Mon, Apr 09, 2018 at 04:52:47PM +0200, Geert Uytterhoeven wrote:
> With gcc-4.1.2:
>
> drivers/infiniband/core/uverbs_std_types_flow_action.c:366: error: unknown field ‘ptr’ specified in initializer
> drivers/infiniband/core/uverbs_std_types_flow_action.c:367: error: unknown field ‘type’ specified in initializer
> drivers/infiniband/core/uverbs_std_types_flow_action.c:367: warning: missing braces around initializer
> drivers/infiniband/core/uverbs_std_types_flow_action.c:367: warning: (near initialization for ‘uverbs_flow_action_esp_keymat[0].<anonymous>.<anonymous>’)
> drivers/infiniband/core/uverbs_std_types_flow_action.c:368: error: unknown field ‘min_len’ specified in initializer
> drivers/infiniband/core/uverbs_std_types_flow_action.c:368: warning: excess elements in union initializer
> drivers/infiniband/core/uverbs_std_types_flow_action.c:368: warning: (near initialization for ‘uverbs_flow_action_esp_keymat[0].<anonymous>’)
> drivers/infiniband/core/uverbs_std_types_flow_action.c:368: error: unknown field ‘len’ specified in initializer
> drivers/infiniband/core/uverbs_std_types_flow_action.c:368: warning: excess elements in union initializer
> drivers/infiniband/core/uverbs_std_types_flow_action.c:368: warning: (near initialization for ‘uverbs_flow_action_esp_keymat[0].<anonymous>’)
> drivers/infiniband/core/uverbs_std_types_flow_action.c:369: error: unknown field ‘flags’ specified in initializer
> drivers/infiniband/core/uverbs_std_types_flow_action.c:369: warning: excess elements in union initializer
> drivers/infiniband/core/uverbs_std_types_flow_action.c:369: warning: (near initialization for ‘uverbs_flow_action_esp_keymat[0].<anonymous>’)
> drivers/infiniband/core/uverbs_std_types_flow_action.c:376: error: unknown field ‘ptr’ specified in initializer
> drivers/infiniband/core/uverbs_std_types_flow_action.c:377: error: unknown field ‘type’ specified in initializer
> drivers/infiniband/core/uverbs_std_types_flow_action.c:377: warning: missing braces around initializer
> drivers/infiniband/core/uverbs_std_types_flow_action.c:377: warning: (near initialization for ‘uverbs_flow_action_esp_replay[0].<anonymous>.<anonymous>’)
> drivers/infiniband/core/uverbs_std_types_flow_action.c:379: error: unknown field ‘len’ specified in initializer
> drivers/infiniband/core/uverbs_std_types_flow_action.c:379: warning: excess elements in union initializer
> drivers/infiniband/core/uverbs_std_types_flow_action.c:379: warning: (near initialization for ‘uverbs_flow_action_esp_replay[0].<anonymous>’)
> drivers/infiniband/core/uverbs_std_types_flow_action.c:383: error: unknown field ‘ptr’ specified in initializer
> drivers/infiniband/core/uverbs_std_types_flow_action.c:384: error: unknown field ‘type’ specified in initializer
> drivers/infiniband/core/uverbs_std_types_flow_action.c:385: error: unknown field ‘min_len’ specified in initializer
> drivers/infiniband/core/uverbs_std_types_flow_action.c:385: warning: excess elements in union initializer
> drivers/infiniband/core/uverbs_std_types_flow_action.c:385: warning: (near initialization for ‘uverbs_flow_action_esp_replay[1].<anonymous>’)
> drivers/infiniband/core/uverbs_std_types_flow_action.c:385: error: unknown field ‘len’ specified in initializer
> drivers/infiniband/core/uverbs_std_types_flow_action.c:385: warning: excess elements in union initializer
> drivers/infiniband/core/uverbs_std_types_flow_action.c:385: warning: (near initialization for ‘uverbs_flow_action_esp_replay[1].<anonymous>’)
> drivers/infiniband/core/uverbs_std_types_flow_action.c:386: error: unknown field ‘flags’ specified in initializer
> drivers/infiniband/core/uverbs_std_types_flow_action.c:386: warning: excess elements in union initializer
> drivers/infiniband/core/uverbs_std_types_flow_action.c:386: warning: (near initialization for ‘uverbs_flow_action_esp_replay[1].<anonymous>’)
>
> Add the missing braces to fix this.
>
> Signed-off-by: Geert Uytterhoeven <geert@linux-m68k.org>
> ---
> Presumably also needed for Andrew's gcc-4.4.4.
>
> Unfortunately I don't know how to fix the remaining warnings:
>
> drivers/infiniband/core/uverbs_std_types_flow_action.c:391: warning: initialization from incompatible pointer type
> drivers/infiniband/core/uverbs_std_types_flow_action.c:408: warning: initialization from incompatible pointer type
> drivers/infiniband/core/uverbs_std_types_flow_action.c:423: warning: initialization from incompatible pointer type
> drivers/infiniband/core/uverbs_std_types_flow_action.c:430: warning: initialization from incompatible pointer type
> drivers/infiniband/core/uverbs_std_types_cq.c:149: warning: initialization from incompatible pointer type
> drivers/infiniband/core/uverbs_std_types_cq.c:194: warning: initialization from incompatible pointer type
> drivers/infiniband/core/uverbs_std_types_cq.c:202: warning: initialization from incompatible pointer type
> drivers/infiniband/core/uverbs_std_types_dm.c:86: warning: initialization from incompatible pointer type
> drivers/infiniband/core/uverbs_std_types_dm.c:97: warning: initialization from incompatible pointer type
> drivers/infiniband/core/uverbs_std_types_dm.c:104: warning: initialization from incompatible pointer type
> drivers/infiniband/core/uverbs_std_types_mr.c:118: warning: initialization from incompatible pointer type
> drivers/infiniband/core/uverbs_std_types_mr.c:144: warning: initialization from incompatible pointer type
>
> Smallest variable declaration exposing the problem:
>
> static const struct uverbs_method_def bad = {
> .attrs = &(const struct uverbs_attr_def * const []) { }
> };
> ---
> drivers/infiniband/core/uverbs_std_types_flow_action.c | 12 ++++++------
> 1 file changed, 6 insertions(+), 6 deletions(-)

I've applied this to for-rc, thanks

I have a notion on how to fix the warnings, maybe you will see that in
4.18..

Jason

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