linux-kernel - Re: [PATCH] power: vexpress: fix -Wvoid-pointer-to-enum-cast warning

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Date:   Tue, 12 Sep 2023 20:19:31 +0200
From:   Sebastian Reichel <sebastian.reichel@...labora.com>
To:     Sebastian Reichel <sre@...nel.org>,
        Liviu Dudau <liviu.dudau@....com>,
        Sudeep Holla <sudeep.holla@....com>,
        Lorenzo Pieralisi <lpieralisi@...nel.org>,
        Nathan Chancellor <nathan@...nel.org>,
        Nick Desaulniers <ndesaulniers@...gle.com>,
        Tom Rix <trix@...hat.com>,
        Justin Stitt <justinstitt@...gle.com>
Cc:     linux-pm@...r.kernel.org, linux-arm-kernel@...ts.infradead.org,
        linux-kernel@...r.kernel.org, llvm@...ts.linux.dev
Subject: Re: [PATCH] power: vexpress: fix -Wvoid-pointer-to-enum-cast
 warning


On Mon, 14 Aug 2023 22:21:51 +0000, Justin Stitt wrote:
> When building with clang 18 I see the following warning:
> |       drivers/power/reset/vexpress-poweroff.c:124:10: warning: cast to smaller integer type 'enum vexpress_reset_func' from 'const void *' [-Wvoid-pointer-to-enum-cast]
> |         124 |         switch ((enum vexpress_reset_func)match->data) {
> 
> This is due to the fact that `match->data` is a void* while `enum vexpress_reset_func`
> has the size of an int. This leads to truncation and possible data loss.
> 
> [...]

Applied, thanks!

[1/1] power: vexpress: fix -Wvoid-pointer-to-enum-cast warning
      commit: 4ec7b666fb4247bc6b9cdc84fa753d8dc2994d25

Best regards,
-- 
Sebastian Reichel <sebastian.reichel@...labora.com>