On 2024-11-18 11:55:17+0000, Robin Murphy wrote:
On 2024-11-17 10:20 am, Thomas Weißschuh wrote:
The sentinel NULL value does not make sense and is a syntax error in a structure definition.
What error? It's an initialiser following a designator in a structure *declaration*, and the corresponding bin_attrs member is a pointer, so NULL is a perfectly appropriate value to initialise it with.
Yes, you are correct. The warning only occurs in my series which changes bin_attrs to a union [0] and I got confused due to some missing and inconsisteny build bot feedback.
Of course that is redundant when it's static anyway, and indeed wasn't actually intentional, but it's also not doing any harm - the cosmetic cleanup is welcome, but is not a stable-worthy fix.
Agreed, it's not worthy for stable. Actually I want to make this patch part of a series, so please ignore it for now.
Thanks, Robin.
[0] https://lore.kernel.org/lkml/20241115-b4-sysfs-const-bin_attr-group-v1-1-2c9...
Remove it.
Fixes: 4d5a7680f2b4 ("perf: Add driver for Arm NI-700 interconnect PMU") Cc: stable@vger.kernel.org Signed-off-by: Thomas Weißschuh linux@weissschuh.net
Cc stable because although this commit is not yet released, it most likely will be by the time it hits mainline.
drivers/perf/arm-ni.c | 1 - 1 file changed, 1 deletion(-)
diff --git a/drivers/perf/arm-ni.c b/drivers/perf/arm-ni.c index 90fcfe693439ef3e18e23c6351433ac3c5ea78b5..fd7a5e60e96302fada29cd44e7bf9c582e93e4ce 100644 --- a/drivers/perf/arm-ni.c +++ b/drivers/perf/arm-ni.c @@ -247,7 +247,6 @@ static struct attribute *arm_ni_other_attrs[] = { static const struct attribute_group arm_ni_other_attr_group = { .attrs = arm_ni_other_attrs,
- NULL }; static const struct attribute_group *arm_ni_attr_groups[] = {
base-commit: 4a5df37964673effcd9f84041f7423206a5ae5f2 change-id: 20241117-arm-ni-syntax-250a83058529
Best regards,