`match_id->data` is a void* and as such is being truncated when cast to `enum rt5677_type` which is only int-width. There is likely no data loss occurring, though, as `enum rt5677_type` consists of only two fields from 0 to 1 wherein obviously no data loss happens from pointer-width -> int-width. Link: https://github.com/ClangBuiltLinux/linux/issues/1910 Reported-by: Nathan Chancellor <nathan@xxxxxxxxxx> Signed-off-by: Justin Stitt <justinstitt@xxxxxxxxxx> --- Note: I'm not sure if `uintptr_t` is the correct solution here as I've also seen a cast to `unsigned long` suffice. Any thoughts on the semantically correct option? --- sound/soc/codecs/rt5677.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/sound/soc/codecs/rt5677.c b/sound/soc/codecs/rt5677.c index ad14d18860fc..278cb0b265e5 100644 --- a/sound/soc/codecs/rt5677.c +++ b/sound/soc/codecs/rt5677.c @@ -5578,7 +5578,7 @@ static int rt5677_i2c_probe(struct i2c_client *i2c) match_id = of_match_device(rt5677_of_match, &i2c->dev); if (match_id) - rt5677->type = (enum rt5677_type)match_id->data; + rt5677->type = (uintptr_t)match_id->data; } else if (ACPI_HANDLE(&i2c->dev)) { const struct acpi_device_id *acpi_id; --- base-commit: 2ccdd1b13c591d306f0401d98dedc4bdcd02b421 change-id: 20230814-void-sound-soc-codecs-rt5677-dfc041c1a734 Best regards, -- Justin Stitt <justinstitt@xxxxxxxxxx>
