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Date: Wed, 3 Apr 2024 11:13:50 +0200
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Subject: Re: [PATCH 33/34] drivers: remove incorrect of_match_ptr/ACPI_PTR
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To: Arnd Bergmann <arnd@kernel.org>, linux-kernel@vger.kernel.org,
 Corey Minyard <minyard@acm.org>, Peter Huewe <peterhuewe@gmx.de>,
 Jarkko Sakkinen <jarkko@kernel.org>, Vinod Koul <vkoul@kernel.org>,
 Moritz Fischer <mdf@kernel.org>, Wu Hao <hao.wu@intel.com>,
 Xu Yilun <yilun.xu@intel.com>, Jiri Kosina <jikos@kernel.org>,
 Benjamin Tissoires <benjamin.tissoires@redhat.com>,
 Michael Hennerich <michael.hennerich@analog.com>,
 Peter Rosin <peda@axentia.se>, Dmitry Torokhov <dmitry.torokhov@gmail.com>,
 Iyappan Subramanian <iyappan@os.amperecomputing.com>,
 Keyur Chudgar <keyur@os.amperecomputing.com>,
 "David S. Miller" <davem@davemloft.net>, Eric Dumazet <edumazet@google.com>,
 Jakub Kicinski <kuba@kernel.org>, Paolo Abeni <pabeni@redhat.com>,
 Yisen Zhuang <yisen.zhuang@huawei.com>, Salil Mehta
 <salil.mehta@huawei.com>, Tony Lindgren <tony@atomide.com>,
 Liam Girdwood <lgirdwood@gmail.com>, Mark Brown <broonie@kernel.org>,
 Alexandre Belloni <alexandre.belloni@bootlin.com>,
 Xiang Chen <chenxiang66@hisilicon.com>,
 "James E.J. Bottomley" <jejb@linux.ibm.com>,
 "Martin K. Petersen" <martin.petersen@oracle.com>,
 Greg Kroah-Hartman <gregkh@linuxfoundation.org>,
 Russell King <linux@armlinux.org.uk>, Jiri Slaby <jirislaby@kernel.org>,
 Jacky Huang <ychuang3@nuvoton.com>, Shan-Chun Hung <schung@nuvoton.com>
Cc: Arnd Bergmann <arnd@arndb.de>, Jason Gunthorpe <jgg@ziepe.ca>,
 Tom Rix <trix@redhat.com>, =?UTF-8?Q?Uwe_Kleine-K=C3=B6nig?=
 <u.kleine-koenig@pengutronix.de>, Randy Dunlap <rdunlap@infradead.org>,
 Rob Herring <robh@kernel.org>, Linus Walleij <linus.walleij@linaro.org>,
 openipmi-developer@lists.sourceforge.net, linux-integrity@vger.kernel.org,
 dmaengine@vger.kernel.org, linux-fpga@vger.kernel.org,
 linux-input@vger.kernel.org, linux-i2c@vger.kernel.org,
 netdev@vger.kernel.org, linux-omap@vger.kernel.org,
 linux-rtc@vger.kernel.org, linux-scsi@vger.kernel.org,
 linux-staging@lists.linux.dev, linux-serial@vger.kernel.org,
 linux-arm-kernel@lists.infradead.org
References: <20240403080702.3509288-1-arnd@kernel.org>
 <20240403080702.3509288-34-arnd@kernel.org>
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From: Krzysztof Kozlowski <krzk@kernel.org>
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In-Reply-To: <20240403080702.3509288-34-arnd@kernel.org>
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On 03/04/2024 10:06, Arnd Bergmann wrote:
> From: Arnd Bergmann <arnd@arndb.de>
> 
> When building with CONFIG_OF and/or CONFIG_ACPI disabled but W=1 extra
> warnings enabled, a lot of driver cause a warning about an unused
> ID table:
> 
> drivers/char/tpm/tpm_ftpm_tee.c:356:34: error: unused variable 'of_ftpm_tee_ids' [-Werror,-Wunused-const-variable]
> drivers/dma/img-mdc-dma.c:863:34: error: unused variable 'mdc_dma_of_match' [-Werror,-Wunused-const-variable]
> drivers/fpga/versal-fpga.c:62:34: error: unused variable 'versal_fpga_of_match' [-Werror,-Wunused-const-variable]
> drivers/i2c/muxes/i2c-mux-ltc4306.c:200:34: error: unused variable 'ltc4306_of_match' [-Werror,-Wunused-const-variable]
> drivers/i2c/muxes/i2c-mux-reg.c:242:34: error: unused variable 'i2c_mux_reg_of_match' [-Werror,-Wunused-const-variable]
> drivers/memory/pl353-smc.c:62:34: error: unused variable 'pl353_smc_supported_children' [-Werror,-Wunused-const-variable]
> drivers/regulator/pbias-regulator.c:136:34: error: unused variable 'pbias_of_match' [-Werror,-Wunused-const-variable]
> drivers/regulator/twl-regulator.c:552:34: error: unused variable 'twl_of_match' [-Werror,-Wunused-const-variable]
> drivers/regulator/twl6030-regulator.c:645:34: error: unused variable 'twl_of_match' [-Werror,-Wunused-const-variable]
> drivers/scsi/hisi_sas/hisi_sas_v2_hw.c:3635:36: error: unused variable 'sas_v2_acpi_match' [-Werror,-Wunused-const-variable]
> drivers/staging/pi433/pi433_if.c:1359:34: error: unused variable 'pi433_dt_ids' [-Werror,-Wunused-const-variable]
> drivers/tty/serial/amba-pl011.c:2945:34: error: unused variable 'sbsa_uart_of_match' [-Werror,-Wunused-const-variable]
> 
> The fix is always to just remove the of_match_ptr() and ACPI_PTR() wrappers
> that remove the reference, rather than adding another #ifdef just for build
> testing for a configuration that doesn't matter in practice.
> 
> I considered splitting up the large patch into per subsystem patches, but since
> it's really just the same thing everywhere it feels better to do it all at once.
> 
> Signed-off-by: Arnd Bergmann <arnd@arndb.de>
> ---
>  drivers/char/ipmi/ipmb_dev_int.c          | 2 +-
>  drivers/char/tpm/tpm_ftpm_tee.c           | 2 +-
>  drivers/dma/img-mdc-dma.c                 | 2 +-
>  drivers/fpga/versal-fpga.c                | 2 +-
>  drivers/hid/hid-google-hammer.c           | 6 ++----
>  drivers/i2c/muxes/i2c-mux-ltc4306.c       | 2 +-
>  drivers/i2c/muxes/i2c-mux-reg.c           | 2 +-
>  drivers/input/touchscreen/wdt87xx_i2c.c   | 2 +-
>  drivers/mux/adg792a.c                     | 2 +-
>  drivers/net/ethernet/apm/xgene-v2/main.c  | 2 +-
>  drivers/net/ethernet/hisilicon/hns_mdio.c | 2 +-
>  drivers/regulator/pbias-regulator.c       | 2 +-
>  drivers/regulator/twl-regulator.c         | 2 +-
>  drivers/regulator/twl6030-regulator.c     | 2 +-

I covered regulators here the same way:
https://lore.kernel.org/all/20230310214553.275450-5-krzysztof.kozlowski@linaro.org/

but just like SPI and ASoC, Mark did not agree to pick them up.

Best regards,
Krzysztof