Messages in this thread | | | Date | Tue, 15 Aug 2023 22:41:39 +0200 | From | Andrew Lunn <> | Subject | Re: [PATCH] net: mdio: fix -Wvoid-pointer-to-enum-cast warning |
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On Tue, Aug 15, 2023 at 08:35:59PM +0000, Justin Stitt wrote: > When building with clang 18 I see the following warning: > | drivers/net/mdio/mdio-xgene.c:338:13: warning: cast to smaller integer > | type 'enum xgene_mdio_id' from 'const void *' [-Wvoid-pointer-to-enum-cast] > | 338 | mdio_id = (enum xgene_mdio_id)of_id->data; > > This is due to the fact that `of_id->data` is a void* while `enum > xgene_mdio_id` has the size of an int. This leads to truncation and > possible data loss. > > Link: https://github.com/ClangBuiltLinux/linux/issues/1910 > Reported-by: Nathan Chancellor <nathan@kernel.org> > Signed-off-by: Justin Stitt <justinstitt@google.com>
Reviewed-by: Andrew Lunn <andrew@lunn.ch>
Andrew
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