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Message-ID: <171260277849.3109929.1668041090243479256.b4-ty@oracle.com>
Date: Mon, 8 Apr 2024 23:08:51 -0400
From: "Martin K. Petersen" <martin.petersen@...cle.com>
To: "Manoj N. Kumar" <manoj@...ux.ibm.com>,
"Matthew R. Ochs" <mrochs@...ux.ibm.com>,
Uma Krishnan <ukrishn@...ux.ibm.com>, Arnd Bergmann <arnd@...nel.org>
Cc: "Martin K . Petersen" <martin.petersen@...cle.com>,
Arnd Bergmann <arnd@...db.de>,
"James E.J. Bottomley" <jejb@...ux.ibm.com>,
Nathan Chancellor <nathan@...nel.org>,
Nick Desaulniers <ndesaulniers@...gle.com>,
Bill Wendling <morbo@...gle.com>,
Justin Stitt <justinstitt@...gle.com>, linux-scsi@...r.kernel.org,
linux-kernel@...r.kernel.org, llvm@...ts.linux.dev
Subject: Re: [PATCH] [v2] cxlflash: fix function pointer cast warnings
On Thu, 04 Apr 2024 18:14:58 +0200, Arnd Bergmann wrote:
> Calling a function through an incompatible pointer type causes breaks
> kcfi, so clang warns about the assignments:
>
> drivers/scsi/cxlflash/main.c:3498:3: error: cast from 'int (*)(struct cxlflash_cfg *, struct ht_cxlflash_lun_provision *)' to 'hioctl' (aka 'int (*)(struct cxlflash_cfg *, void *)') converts to incompatible function type [-Werror,-Wcast-function-type-strict]
> 3498 | (hioctl)cxlflash_lun_provision },
> | ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
> drivers/scsi/cxlflash/main.c:3500:3: error: cast from 'int (*)(struct cxlflash_cfg *, struct ht_cxlflash_afu_debug *)' to 'hioctl' (aka 'int (*)(struct cxlflash_cfg *, void *)') converts to incompatible function type [-Werror,-Wcast-function-type-strict]
> 3500 | (hioctl)cxlflash_afu_debug },
> | ^~~~~~~~~~~~~~~~~~~~~~~~~~
>
> [...]
Applied to 6.10/scsi-queue, thanks!
[1/1] cxlflash: fix function pointer cast warnings
https://git.kernel.org/mkp/scsi/c/28fc2bd2c729
--
Martin K. Petersen Oracle Linux Engineering
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