LinuxLists.cc - [PATCH 33/34] drivers: remove incorrect of_match_ptr/ACPI

2024-04-03 08:25:48

Subject: [PATCH 33/34] drivers: remove incorrect of_match_ptr/ACPI_PTR annotations

From: Arnd Bergmann <[email protected]>

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 <[email protected]>
---
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 +-
drivers/rtc/rtc-fsl-ftm-alarm.c | 2 +-
drivers/scsi/hisi_sas/hisi_sas_v1_hw.c | 2 +-
drivers/scsi/hisi_sas/hisi_sas_v2_hw.c | 2 +-
drivers/staging/pi433/pi433_if.c | 2 +-
drivers/tty/serial/amba-pl011.c | 6 +++---
drivers/tty/serial/ma35d1_serial.c | 2 +-
20 files changed, 23 insertions(+), 25 deletions(-)

diff --git a/drivers/char/ipmi/ipmb_dev_int.c b/drivers/char/ipmi/ipmb_dev_int.c
index 49100845fcb7..5e7bfc7c26e2 100644
--- a/drivers/char/ipmi/ipmb_dev_int.c
+++ b/drivers/char/ipmi/ipmb_dev_int.c
@@ -364,7 +364,7 @@ MODULE_DEVICE_TABLE(acpi, acpi_ipmb_id);
static struct i2c_driver ipmb_driver = {
.driver = {
.name = "ipmb-dev",
- .acpi_match_table = ACPI_PTR(acpi_ipmb_id),
+ .acpi_match_table = acpi_ipmb_id,
},
.probe = ipmb_probe,
.remove = ipmb_remove,
diff --git a/drivers/char/tpm/tpm_ftpm_tee.c b/drivers/char/tpm/tpm_ftpm_tee.c
index 2ea4882251cf..0c453f3f928d 100644
--- a/drivers/char/tpm/tpm_ftpm_tee.c
+++ b/drivers/char/tpm/tpm_ftpm_tee.c
@@ -362,7 +362,7 @@ MODULE_DEVICE_TABLE(of, of_ftpm_tee_ids);
static struct platform_driver ftpm_tee_plat_driver = {
.driver = {
.name = "ftpm-tee",
- .of_match_table = of_match_ptr(of_ftpm_tee_ids),
+ .of_match_table = of_ftpm_tee_ids,
},
.shutdown = ftpm_plat_tee_shutdown,
.probe = ftpm_plat_tee_probe,
diff --git a/drivers/dma/img-mdc-dma.c b/drivers/dma/img-mdc-dma.c
index 0532dd2640dc..6931c8a65415 100644
--- a/drivers/dma/img-mdc-dma.c
+++ b/drivers/dma/img-mdc-dma.c
@@ -1073,7 +1073,7 @@ static struct platform_driver mdc_dma_driver = {
.driver = {
.name = "img-mdc-dma",
.pm = &img_mdc_pm_ops,
- .of_match_table = of_match_ptr(mdc_dma_of_match),
+ .of_match_table = mdc_dma_of_match,
},
.probe = mdc_dma_probe,
.remove_new = mdc_dma_remove,
diff --git a/drivers/fpga/versal-fpga.c b/drivers/fpga/versal-fpga.c
index 3710e8f01be2..e6189106c468 100644
--- a/drivers/fpga/versal-fpga.c
+++ b/drivers/fpga/versal-fpga.c
@@ -69,7 +69,7 @@ static struct platform_driver versal_fpga_driver = {
.probe = versal_fpga_probe,
.driver = {
.name = "versal_fpga_manager",
- .of_match_table = of_match_ptr(versal_fpga_of_match),
+ .of_match_table = versal_fpga_of_match,
},
};
module_platform_driver(versal_fpga_driver);
diff --git a/drivers/hid/hid-google-hammer.c b/drivers/hid/hid-google-hammer.c
index c6bdb9c4ef3e..886cc5748b7d 100644
--- a/drivers/hid/hid-google-hammer.c
+++ b/drivers/hid/hid-google-hammer.c
@@ -275,21 +275,19 @@ static const struct acpi_device_id cbas_ec_acpi_ids[] = {
};
MODULE_DEVICE_TABLE(acpi, cbas_ec_acpi_ids);

-#ifdef CONFIG_OF
static const struct of_device_id cbas_ec_of_match[] = {
{ .compatible = "google,cros-cbas" },
{ },
};
MODULE_DEVICE_TABLE(of, cbas_ec_of_match);
-#endif

static struct platform_driver cbas_ec_driver = {
.probe = cbas_ec_probe,
.remove = cbas_ec_remove,
.driver = {
.name = "cbas_ec",
- .acpi_match_table = ACPI_PTR(cbas_ec_acpi_ids),
- .of_match_table = of_match_ptr(cbas_ec_of_match),
+ .acpi_match_table = cbas_ec_acpi_ids,
+ .of_match_table = cbas_ec_of_match,
.pm = &cbas_ec_pm_ops,
},
};
diff --git a/drivers/i2c/muxes/i2c-mux-ltc4306.c b/drivers/i2c/muxes/i2c-mux-ltc4306.c
index 23766d853e76..c6d70788161a 100644
--- a/drivers/i2c/muxes/i2c-mux-ltc4306.c
+++ b/drivers/i2c/muxes/i2c-mux-ltc4306.c
@@ -303,7 +303,7 @@ static void ltc4306_remove(struct i2c_client *client)
static struct i2c_driver ltc4306_driver = {
.driver = {
.name = "ltc4306",
- .of_match_table = of_match_ptr(ltc4306_of_match),
+ .of_match_table = ltc4306_of_match,
},
.probe = ltc4306_probe,
.remove = ltc4306_remove,
diff --git a/drivers/i2c/muxes/i2c-mux-reg.c b/drivers/i2c/muxes/i2c-mux-reg.c
index 8489971babd3..0f1b39964743 100644
--- a/drivers/i2c/muxes/i2c-mux-reg.c
+++ b/drivers/i2c/muxes/i2c-mux-reg.c
@@ -250,7 +250,7 @@ static struct platform_driver i2c_mux_reg_driver = {
.remove_new = i2c_mux_reg_remove,
.driver = {
.name = "i2c-mux-reg",
- .of_match_table = of_match_ptr(i2c_mux_reg_of_match),
+ .of_match_table = i2c_mux_reg_of_match,
},
};

diff --git a/drivers/input/touchscreen/wdt87xx_i2c.c b/drivers/input/touchscreen/wdt87xx_i2c.c
index 32c7be54434c..9f3a4092e47c 100644
--- a/drivers/input/touchscreen/wdt87xx_i2c.c
+++ b/drivers/input/touchscreen/wdt87xx_i2c.c
@@ -1166,7 +1166,7 @@ static struct i2c_driver wdt87xx_driver = {
.name = WDT87XX_NAME,
.dev_groups = wdt87xx_groups,
.pm = pm_sleep_ptr(&wdt87xx_pm_ops),
- .acpi_match_table = ACPI_PTR(wdt87xx_acpi_id),
+ .acpi_match_table = wdt87xx_acpi_id,
},
};
module_i2c_driver(wdt87xx_driver);
diff --git a/drivers/mux/adg792a.c b/drivers/mux/adg792a.c
index 4da5aecb9fc6..a5afe29e3cf1 100644
--- a/drivers/mux/adg792a.c
+++ b/drivers/mux/adg792a.c
@@ -141,7 +141,7 @@ MODULE_DEVICE_TABLE(of, adg792a_of_match);
static struct i2c_driver adg792a_driver = {
.driver = {
.name = "adg792a",
- .of_match_table = of_match_ptr(adg792a_of_match),
+ .of_match_table = adg792a_of_match,
},
.probe = adg792a_probe,
.id_table = adg792a_id,
diff --git a/drivers/net/ethernet/apm/xgene-v2/main.c b/drivers/net/ethernet/apm/xgene-v2/main.c
index 9e90c2381491..64370057ba3d 100644
--- a/drivers/net/ethernet/apm/xgene-v2/main.c
+++ b/drivers/net/ethernet/apm/xgene-v2/main.c
@@ -731,7 +731,7 @@ MODULE_DEVICE_TABLE(acpi, xge_acpi_match);
static struct platform_driver xge_driver = {
.driver = {
.name = "xgene-enet-v2",
- .acpi_match_table = ACPI_PTR(xge_acpi_match),
+ .acpi_match_table = xge_acpi_match,
},
.probe = xge_probe,
.remove_new = xge_remove,
diff --git a/drivers/net/ethernet/hisilicon/hns_mdio.c b/drivers/net/ethernet/hisilicon/hns_mdio.c
index ed73707176c1..f8caf59bd759 100644
--- a/drivers/net/ethernet/hisilicon/hns_mdio.c
+++ b/drivers/net/ethernet/hisilicon/hns_mdio.c
@@ -639,7 +639,7 @@ static struct platform_driver hns_mdio_driver = {
.driver = {
.name = MDIO_DRV_NAME,
.of_match_table = hns_mdio_match,
- .acpi_match_table = ACPI_PTR(hns_mdio_acpi_match),
+ .acpi_match_table = hns_mdio_acpi_match,
},
};

diff --git a/drivers/regulator/pbias-regulator.c b/drivers/regulator/pbias-regulator.c
index cd5a0d7e4455..2eeb99e7b850 100644
--- a/drivers/regulator/pbias-regulator.c
+++ b/drivers/regulator/pbias-regulator.c
@@ -231,7 +231,7 @@ static struct platform_driver pbias_regulator_driver = {
.driver = {
.name = "pbias-regulator",
.probe_type = PROBE_PREFER_ASYNCHRONOUS,
- .of_match_table = of_match_ptr(pbias_of_match),
+ .of_match_table = pbias_of_match,
},
};

diff --git a/drivers/regulator/twl-regulator.c b/drivers/regulator/twl-regulator.c
index 5bacfcebf59a..4ed91e88e1eb 100644
--- a/drivers/regulator/twl-regulator.c
+++ b/drivers/regulator/twl-regulator.c
@@ -656,7 +656,7 @@ static struct platform_driver twlreg_driver = {
.driver = {
.name = "twl4030_reg",
.probe_type = PROBE_PREFER_ASYNCHRONOUS,
- .of_match_table = of_match_ptr(twl_of_match),
+ .of_match_table = twl_of_match,
},
};

diff --git a/drivers/regulator/twl6030-regulator.c b/drivers/regulator/twl6030-regulator.c
index 6eed0f6e0adb..8a84048a66d7 100644
--- a/drivers/regulator/twl6030-regulator.c
+++ b/drivers/regulator/twl6030-regulator.c
@@ -765,7 +765,7 @@ static struct platform_driver twlreg_driver = {
.driver = {
.name = "twl6030_reg",
.probe_type = PROBE_PREFER_ASYNCHRONOUS,
- .of_match_table = of_match_ptr(twl_of_match),
+ .of_match_table = twl_of_match,
},
};

diff --git a/drivers/rtc/rtc-fsl-ftm-alarm.c b/drivers/rtc/rtc-fsl-ftm-alarm.c
index a72c4ad0cec6..12da7d36e520 100644
--- a/drivers/rtc/rtc-fsl-ftm-alarm.c
+++ b/drivers/rtc/rtc-fsl-ftm-alarm.c
@@ -320,7 +320,7 @@ static struct platform_driver ftm_rtc_driver = {
.driver = {
.name = "ftm-alarm",
.of_match_table = ftm_rtc_match,
- .acpi_match_table = ACPI_PTR(ftm_imx_acpi_ids),
+ .acpi_match_table = ftm_imx_acpi_ids,
},
};

diff --git a/drivers/scsi/hisi_sas/hisi_sas_v1_hw.c b/drivers/scsi/hisi_sas/hisi_sas_v1_hw.c
index 161feae3acab..c6f313c9605b 100644
--- a/drivers/scsi/hisi_sas/hisi_sas_v1_hw.c
+++ b/drivers/scsi/hisi_sas/hisi_sas_v1_hw.c
@@ -1788,7 +1788,7 @@ static struct platform_driver hisi_sas_v1_driver = {
.driver = {
.name = DRV_NAME,
.of_match_table = sas_v1_of_match,
- .acpi_match_table = ACPI_PTR(sas_v1_acpi_match),
+ .acpi_match_table = sas_v1_acpi_match,
},
};

diff --git a/drivers/scsi/hisi_sas/hisi_sas_v2_hw.c b/drivers/scsi/hisi_sas/hisi_sas_v2_hw.c
index d89e97e8f5c2..ce3b5e1680f5 100644
--- a/drivers/scsi/hisi_sas/hisi_sas_v2_hw.c
+++ b/drivers/scsi/hisi_sas/hisi_sas_v2_hw.c
@@ -3635,7 +3635,7 @@ static struct platform_driver hisi_sas_v2_driver = {
.driver = {
.name = DRV_NAME,
.of_match_table = sas_v2_of_match,
- .acpi_match_table = ACPI_PTR(sas_v2_acpi_match),
+ .acpi_match_table = sas_v2_acpi_match,
},
};

diff --git a/drivers/staging/pi433/pi433_if.c b/drivers/staging/pi433/pi433_if.c
index 81de98c0245a..30fd6da3e8d8 100644
--- a/drivers/staging/pi433/pi433_if.c
+++ b/drivers/staging/pi433/pi433_if.c
@@ -1367,7 +1367,7 @@ static struct spi_driver pi433_spi_driver = {
.driver = {
.name = "pi433",
.owner = THIS_MODULE,
- .of_match_table = of_match_ptr(pi433_dt_ids),
+ .of_match_table = pi433_dt_ids,
},
.probe = pi433_probe,
.remove = pi433_remove,
diff --git a/drivers/tty/serial/amba-pl011.c b/drivers/tty/serial/amba-pl011.c
index 2fa3fb30dc6c..dd1d1a2cc5f5 100644
--- a/drivers/tty/serial/amba-pl011.c
+++ b/drivers/tty/serial/amba-pl011.c
@@ -2948,7 +2948,7 @@ static const struct of_device_id sbsa_uart_of_match[] = {
};
MODULE_DEVICE_TABLE(of, sbsa_uart_of_match);

-static const struct acpi_device_id __maybe_unused sbsa_uart_acpi_match[] = {
+static const struct acpi_device_id sbsa_uart_acpi_match[] = {
{ "ARMH0011", 0 },
{ "ARMHB000", 0 },
{},
@@ -2961,8 +2961,8 @@ static struct platform_driver arm_sbsa_uart_platform_driver = {
.driver = {
.name = "sbsa-uart",
.pm = &pl011_dev_pm_ops,
- .of_match_table = of_match_ptr(sbsa_uart_of_match),
- .acpi_match_table = ACPI_PTR(sbsa_uart_acpi_match),
+ .of_match_table = sbsa_uart_of_match,
+ .acpi_match_table = sbsa_uart_acpi_match,
.suppress_bind_attrs = IS_BUILTIN(CONFIG_SERIAL_AMBA_PL011),
},
};
diff --git a/drivers/tty/serial/ma35d1_serial.c b/drivers/tty/serial/ma35d1_serial.c
index 19f0a305cc43..e326d0fb06b2 100644
--- a/drivers/tty/serial/ma35d1_serial.c
+++ b/drivers/tty/serial/ma35d1_serial.c
@@ -798,7 +798,7 @@ static struct platform_driver ma35d1serial_driver = {
.resume = ma35d1serial_resume,
.driver = {
.name = "ma35d1-uart",
- .of_match_table = of_match_ptr(ma35d1_serial_of_match),
+ .of_match_table = ma35d1_serial_of_match,
},
};

--
2.39.2

2024-04-03 09:14:44

by Krzysztof Kozlowski

[permalink] [raw]

Subject: Re: [PATCH 33/34] drivers: remove incorrect of_match_ptr/ACPI_PTR annotations

On 03/04/2024 10:06, Arnd Bergmann wrote:
> From: Arnd Bergmann <[email protected]>
>
> 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 <[email protected]>
> ---
> 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/[email protected]/

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

Best regards,
Krzysztof

2024-04-03 09:34:16

by Andy Shevchenko

[permalink] [raw]

Subject: Re: [PATCH 33/34] drivers: remove incorrect of_match_ptr/ACPI_PTR annotations

2024-04-03 12:47:31

by Corey Minyard

[permalink] [raw]

Subject: Re: [PATCH 33/34] drivers: remove incorrect of_match_ptr/ACPI_PTR annotations

On Wed, Apr 03, 2024 at 10:06:51AM +0200, Arnd Bergmann wrote:
> From: Arnd Bergmann <[email protected]>
>
> 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 <[email protected]>

For the IPMI part:

Acked-by: Corey Minyard <[email protected]>

> ---
> 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 +-
> drivers/rtc/rtc-fsl-ftm-alarm.c | 2 +-
> drivers/scsi/hisi_sas/hisi_sas_v1_hw.c | 2 +-
> drivers/scsi/hisi_sas/hisi_sas_v2_hw.c | 2 +-
> drivers/staging/pi433/pi433_if.c | 2 +-
> drivers/tty/serial/amba-pl011.c | 6 +++---
> drivers/tty/serial/ma35d1_serial.c | 2 +-
> 20 files changed, 23 insertions(+), 25 deletions(-)
>
> diff --git a/drivers/char/ipmi/ipmb_dev_int.c b/drivers/char/ipmi/ipmb_dev_int.c
> index 49100845fcb7..5e7bfc7c26e2 100644
> --- a/drivers/char/ipmi/ipmb_dev_int.c
> +++ b/drivers/char/ipmi/ipmb_dev_int.c
> @@ -364,7 +364,7 @@ MODULE_DEVICE_TABLE(acpi, acpi_ipmb_id);
> static struct i2c_driver ipmb_driver = {
> .driver = {
> .name = "ipmb-dev",
> - .acpi_match_table = ACPI_PTR(acpi_ipmb_id),
> + .acpi_match_table = acpi_ipmb_id,
> },
> .probe = ipmb_probe,
> .remove = ipmb_remove,
> diff --git a/drivers/char/tpm/tpm_ftpm_tee.c b/drivers/char/tpm/tpm_ftpm_tee.c
> index 2ea4882251cf..0c453f3f928d 100644
> --- a/drivers/char/tpm/tpm_ftpm_tee.c
> +++ b/drivers/char/tpm/tpm_ftpm_tee.c
> @@ -362,7 +362,7 @@ MODULE_DEVICE_TABLE(of, of_ftpm_tee_ids);
> static struct platform_driver ftpm_tee_plat_driver = {
> .driver = {
> .name = "ftpm-tee",
> - .of_match_table = of_match_ptr(of_ftpm_tee_ids),
> + .of_match_table = of_ftpm_tee_ids,
> },
> .shutdown = ftpm_plat_tee_shutdown,
> .probe = ftpm_plat_tee_probe,
> diff --git a/drivers/dma/img-mdc-dma.c b/drivers/dma/img-mdc-dma.c
> index 0532dd2640dc..6931c8a65415 100644
> --- a/drivers/dma/img-mdc-dma.c
> +++ b/drivers/dma/img-mdc-dma.c
> @@ -1073,7 +1073,7 @@ static struct platform_driver mdc_dma_driver = {
> .driver = {
> .name = "img-mdc-dma",
> .pm = &img_mdc_pm_ops,
> - .of_match_table = of_match_ptr(mdc_dma_of_match),
> + .of_match_table = mdc_dma_of_match,
> },
> .probe = mdc_dma_probe,
> .remove_new = mdc_dma_remove,
> diff --git a/drivers/fpga/versal-fpga.c b/drivers/fpga/versal-fpga.c
> index 3710e8f01be2..e6189106c468 100644
> --- a/drivers/fpga/versal-fpga.c
> +++ b/drivers/fpga/versal-fpga.c
> @@ -69,7 +69,7 @@ static struct platform_driver versal_fpga_driver = {
> .probe = versal_fpga_probe,
> .driver = {
> .name = "versal_fpga_manager",
> - .of_match_table = of_match_ptr(versal_fpga_of_match),
> + .of_match_table = versal_fpga_of_match,
> },
> };
> module_platform_driver(versal_fpga_driver);
> diff --git a/drivers/hid/hid-google-hammer.c b/drivers/hid/hid-google-hammer.c
> index c6bdb9c4ef3e..886cc5748b7d 100644
> --- a/drivers/hid/hid-google-hammer.c
> +++ b/drivers/hid/hid-google-hammer.c
> @@ -275,21 +275,19 @@ static const struct acpi_device_id cbas_ec_acpi_ids[] = {
> };
> MODULE_DEVICE_TABLE(acpi, cbas_ec_acpi_ids);
>
> -#ifdef CONFIG_OF
> static const struct of_device_id cbas_ec_of_match[] = {
> { .compatible = "google,cros-cbas" },
> { },
> };
> MODULE_DEVICE_TABLE(of, cbas_ec_of_match);
> -#endif
>
> static struct platform_driver cbas_ec_driver = {
> .probe = cbas_ec_probe,
> .remove = cbas_ec_remove,
> .driver = {
> .name = "cbas_ec",
> - .acpi_match_table = ACPI_PTR(cbas_ec_acpi_ids),
> - .of_match_table = of_match_ptr(cbas_ec_of_match),
> + .acpi_match_table = cbas_ec_acpi_ids,
> + .of_match_table = cbas_ec_of_match,
> .pm = &cbas_ec_pm_ops,
> },
> };
> diff --git a/drivers/i2c/muxes/i2c-mux-ltc4306.c b/drivers/i2c/muxes/i2c-mux-ltc4306.c
> index 23766d853e76..c6d70788161a 100644
> --- a/drivers/i2c/muxes/i2c-mux-ltc4306.c
> +++ b/drivers/i2c/muxes/i2c-mux-ltc4306.c
> @@ -303,7 +303,7 @@ static void ltc4306_remove(struct i2c_client *client)
> static struct i2c_driver ltc4306_driver = {
> .driver = {
> .name = "ltc4306",
> - .of_match_table = of_match_ptr(ltc4306_of_match),
> + .of_match_table = ltc4306_of_match,
> },
> .probe = ltc4306_probe,
> .remove = ltc4306_remove,
> diff --git a/drivers/i2c/muxes/i2c-mux-reg.c b/drivers/i2c/muxes/i2c-mux-reg.c
> index 8489971babd3..0f1b39964743 100644
> --- a/drivers/i2c/muxes/i2c-mux-reg.c
> +++ b/drivers/i2c/muxes/i2c-mux-reg.c
> @@ -250,7 +250,7 @@ static struct platform_driver i2c_mux_reg_driver = {
> .remove_new = i2c_mux_reg_remove,
> .driver = {
> .name = "i2c-mux-reg",
> - .of_match_table = of_match_ptr(i2c_mux_reg_of_match),
> + .of_match_table = i2c_mux_reg_of_match,
> },
> };
>
> diff --git a/drivers/input/touchscreen/wdt87xx_i2c.c b/drivers/input/touchscreen/wdt87xx_i2c.c
> index 32c7be54434c..9f3a4092e47c 100644
> --- a/drivers/input/touchscreen/wdt87xx_i2c.c
> +++ b/drivers/input/touchscreen/wdt87xx_i2c.c
> @@ -1166,7 +1166,7 @@ static struct i2c_driver wdt87xx_driver = {
> .name = WDT87XX_NAME,
> .dev_groups = wdt87xx_groups,
> .pm = pm_sleep_ptr(&wdt87xx_pm_ops),
> - .acpi_match_table = ACPI_PTR(wdt87xx_acpi_id),
> + .acpi_match_table = wdt87xx_acpi_id,
> },
> };
> module_i2c_driver(wdt87xx_driver);
> diff --git a/drivers/mux/adg792a.c b/drivers/mux/adg792a.c
> index 4da5aecb9fc6..a5afe29e3cf1 100644
> --- a/drivers/mux/adg792a.c
> +++ b/drivers/mux/adg792a.c
> @@ -141,7 +141,7 @@ MODULE_DEVICE_TABLE(of, adg792a_of_match);
> static struct i2c_driver adg792a_driver = {
> .driver = {
> .name = "adg792a",
> - .of_match_table = of_match_ptr(adg792a_of_match),
> + .of_match_table = adg792a_of_match,
> },
> .probe = adg792a_probe,
> .id_table = adg792a_id,
> diff --git a/drivers/net/ethernet/apm/xgene-v2/main.c b/drivers/net/ethernet/apm/xgene-v2/main.c
> index 9e90c2381491..64370057ba3d 100644
> --- a/drivers/net/ethernet/apm/xgene-v2/main.c
> +++ b/drivers/net/ethernet/apm/xgene-v2/main.c
> @@ -731,7 +731,7 @@ MODULE_DEVICE_TABLE(acpi, xge_acpi_match);
> static struct platform_driver xge_driver = {
> .driver = {
> .name = "xgene-enet-v2",
> - .acpi_match_table = ACPI_PTR(xge_acpi_match),
> + .acpi_match_table = xge_acpi_match,
> },
> .probe = xge_probe,
> .remove_new = xge_remove,
> diff --git a/drivers/net/ethernet/hisilicon/hns_mdio.c b/drivers/net/ethernet/hisilicon/hns_mdio.c
> index ed73707176c1..f8caf59bd759 100644
> --- a/drivers/net/ethernet/hisilicon/hns_mdio.c
> +++ b/drivers/net/ethernet/hisilicon/hns_mdio.c
> @@ -639,7 +639,7 @@ static struct platform_driver hns_mdio_driver = {
> .driver = {
> .name = MDIO_DRV_NAME,
> .of_match_table = hns_mdio_match,
> - .acpi_match_table = ACPI_PTR(hns_mdio_acpi_match),
> + .acpi_match_table = hns_mdio_acpi_match,
> },
> };
>
> diff --git a/drivers/regulator/pbias-regulator.c b/drivers/regulator/pbias-regulator.c
> index cd5a0d7e4455..2eeb99e7b850 100644
> --- a/drivers/regulator/pbias-regulator.c
> +++ b/drivers/regulator/pbias-regulator.c
> @@ -231,7 +231,7 @@ static struct platform_driver pbias_regulator_driver = {
> .driver = {
> .name = "pbias-regulator",
> .probe_type = PROBE_PREFER_ASYNCHRONOUS,
> - .of_match_table = of_match_ptr(pbias_of_match),
> + .of_match_table = pbias_of_match,
> },
> };
>
> diff --git a/drivers/regulator/twl-regulator.c b/drivers/regulator/twl-regulator.c
> index 5bacfcebf59a..4ed91e88e1eb 100644
> --- a/drivers/regulator/twl-regulator.c
> +++ b/drivers/regulator/twl-regulator.c
> @@ -656,7 +656,7 @@ static struct platform_driver twlreg_driver = {
> .driver = {
> .name = "twl4030_reg",
> .probe_type = PROBE_PREFER_ASYNCHRONOUS,
> - .of_match_table = of_match_ptr(twl_of_match),
> + .of_match_table = twl_of_match,
> },
> };
>
> diff --git a/drivers/regulator/twl6030-regulator.c b/drivers/regulator/twl6030-regulator.c
> index 6eed0f6e0adb..8a84048a66d7 100644
> --- a/drivers/regulator/twl6030-regulator.c
> +++ b/drivers/regulator/twl6030-regulator.c
> @@ -765,7 +765,7 @@ static struct platform_driver twlreg_driver = {
> .driver = {
> .name = "twl6030_reg",
> .probe_type = PROBE_PREFER_ASYNCHRONOUS,
> - .of_match_table = of_match_ptr(twl_of_match),
> + .of_match_table = twl_of_match,
> },
> };
>
> diff --git a/drivers/rtc/rtc-fsl-ftm-alarm.c b/drivers/rtc/rtc-fsl-ftm-alarm.c
> index a72c4ad0cec6..12da7d36e520 100644
> --- a/drivers/rtc/rtc-fsl-ftm-alarm.c
> +++ b/drivers/rtc/rtc-fsl-ftm-alarm.c
> @@ -320,7 +320,7 @@ static struct platform_driver ftm_rtc_driver = {
> .driver = {
> .name = "ftm-alarm",
> .of_match_table = ftm_rtc_match,
> - .acpi_match_table = ACPI_PTR(ftm_imx_acpi_ids),
> + .acpi_match_table = ftm_imx_acpi_ids,
> },
> };
>
> diff --git a/drivers/scsi/hisi_sas/hisi_sas_v1_hw.c b/drivers/scsi/hisi_sas/hisi_sas_v1_hw.c
> index 161feae3acab..c6f313c9605b 100644
> --- a/drivers/scsi/hisi_sas/hisi_sas_v1_hw.c
> +++ b/drivers/scsi/hisi_sas/hisi_sas_v1_hw.c
> @@ -1788,7 +1788,7 @@ static struct platform_driver hisi_sas_v1_driver = {
> .driver = {
> .name = DRV_NAME,
> .of_match_table = sas_v1_of_match,
> - .acpi_match_table = ACPI_PTR(sas_v1_acpi_match),
> + .acpi_match_table = sas_v1_acpi_match,
> },
> };
>
> diff --git a/drivers/scsi/hisi_sas/hisi_sas_v2_hw.c b/drivers/scsi/hisi_sas/hisi_sas_v2_hw.c
> index d89e97e8f5c2..ce3b5e1680f5 100644
> --- a/drivers/scsi/hisi_sas/hisi_sas_v2_hw.c
> +++ b/drivers/scsi/hisi_sas/hisi_sas_v2_hw.c
> @@ -3635,7 +3635,7 @@ static struct platform_driver hisi_sas_v2_driver = {
> .driver = {
> .name = DRV_NAME,
> .of_match_table = sas_v2_of_match,
> - .acpi_match_table = ACPI_PTR(sas_v2_acpi_match),
> + .acpi_match_table = sas_v2_acpi_match,
> },
> };
>
> diff --git a/drivers/staging/pi433/pi433_if.c b/drivers/staging/pi433/pi433_if.c
> index 81de98c0245a..30fd6da3e8d8 100644
> --- a/drivers/staging/pi433/pi433_if.c
> +++ b/drivers/staging/pi433/pi433_if.c
> @@ -1367,7 +1367,7 @@ static struct spi_driver pi433_spi_driver = {
> .driver = {
> .name = "pi433",
> .owner = THIS_MODULE,
> - .of_match_table = of_match_ptr(pi433_dt_ids),
> + .of_match_table = pi433_dt_ids,
> },
> .probe = pi433_probe,
> .remove = pi433_remove,
> diff --git a/drivers/tty/serial/amba-pl011.c b/drivers/tty/serial/amba-pl011.c
> index 2fa3fb30dc6c..dd1d1a2cc5f5 100644
> --- a/drivers/tty/serial/amba-pl011.c
> +++ b/drivers/tty/serial/amba-pl011.c
> @@ -2948,7 +2948,7 @@ static const struct of_device_id sbsa_uart_of_match[] = {
> };
> MODULE_DEVICE_TABLE(of, sbsa_uart_of_match);
>
> -static const struct acpi_device_id __maybe_unused sbsa_uart_acpi_match[] = {
> +static const struct acpi_device_id sbsa_uart_acpi_match[] = {
> { "ARMH0011", 0 },
> { "ARMHB000", 0 },
> {},
> @@ -2961,8 +2961,8 @@ static struct platform_driver arm_sbsa_uart_platform_driver = {
> .driver = {
> .name = "sbsa-uart",
> .pm = &pl011_dev_pm_ops,
> - .of_match_table = of_match_ptr(sbsa_uart_of_match),
> - .acpi_match_table = ACPI_PTR(sbsa_uart_acpi_match),
> + .of_match_table = sbsa_uart_of_match,
> + .acpi_match_table = sbsa_uart_acpi_match,
> .suppress_bind_attrs = IS_BUILTIN(CONFIG_SERIAL_AMBA_PL011),
> },
> };
> diff --git a/drivers/tty/serial/ma35d1_serial.c b/drivers/tty/serial/ma35d1_serial.c
> index 19f0a305cc43..e326d0fb06b2 100644
> --- a/drivers/tty/serial/ma35d1_serial.c
> +++ b/drivers/tty/serial/ma35d1_serial.c
> @@ -798,7 +798,7 @@ static struct platform_driver ma35d1serial_driver = {
> .resume = ma35d1serial_resume,
> .driver = {
> .name = "ma35d1-uart",
> - .of_match_table = of_match_ptr(ma35d1_serial_of_match),
> + .of_match_table = ma35d1_serial_of_match,
> },
> };
>
> --
> 2.39.2
>

2024-04-03 12:48:05

by Corey Minyard

[permalink] [raw]

Subject: Re: [PATCH 33/34] drivers: remove incorrect of_match_ptr/ACPI_PTR annotations

On Wed, Apr 03, 2024 at 12:30:44PM +0300, Andy Shevchenko wrote:
> On Wed, Apr 03, 2024 at 10:06:51AM +0200, Arnd Bergmann wrote:
> > From: Arnd Bergmann <[email protected]>
> >
> > 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.
>
> Can we split to three groups:
> - Dropping ACPI_PTR()
> - Dropping of_match_ptr() (which I won't review in depth, for example)
> - Dropping both
> ?

Why?

-corey

>
> ...
>
> > --- a/drivers/char/ipmi/ipmb_dev_int.c
> > +++ b/drivers/char/ipmi/ipmb_dev_int.c
> > @@ -364,7 +364,7 @@ MODULE_DEVICE_TABLE(acpi, acpi_ipmb_id);
> > static struct i2c_driver ipmb_driver = {
> > .driver = {
> > .name = "ipmb-dev",
> > - .acpi_match_table = ACPI_PTR(acpi_ipmb_id),
> > + .acpi_match_table = acpi_ipmb_id,
> > },
> > .probe = ipmb_probe,
> > .remove = ipmb_remove,
>
> acpi.h --> mod_devicetable.h.
>
> ...
>
> > --- a/drivers/hid/hid-google-hammer.c
> > +++ b/drivers/hid/hid-google-hammer.c
> > @@ -275,21 +275,19 @@ static const struct acpi_device_id cbas_ec_acpi_ids[] = {
> > };
> > MODULE_DEVICE_TABLE(acpi, cbas_ec_acpi_ids);
> >
> > -#ifdef CONFIG_OF
> > static const struct of_device_id cbas_ec_of_match[] = {
> > { .compatible = "google,cros-cbas" },
> > { },
> > };
> > MODULE_DEVICE_TABLE(of, cbas_ec_of_match);
> > -#endif
> >
> > static struct platform_driver cbas_ec_driver = {
> > .probe = cbas_ec_probe,
> > .remove = cbas_ec_remove,
> > .driver = {
> > .name = "cbas_ec",
> > - .acpi_match_table = ACPI_PTR(cbas_ec_acpi_ids),
> > - .of_match_table = of_match_ptr(cbas_ec_of_match),
> > + .acpi_match_table = cbas_ec_acpi_ids,
> > + .of_match_table = cbas_ec_of_match,
> > .pm = &cbas_ec_pm_ops,
> > },
> > };
>
> Ditto, and likely of.h can be also dropped.
>
> ...
>
> > --- a/drivers/input/touchscreen/wdt87xx_i2c.c
> > +++ b/drivers/input/touchscreen/wdt87xx_i2c.c
> > @@ -1166,7 +1166,7 @@ static struct i2c_driver wdt87xx_driver = {
> > .name = WDT87XX_NAME,
> > .dev_groups = wdt87xx_groups,
> > .pm = pm_sleep_ptr(&wdt87xx_pm_ops),
> > - .acpi_match_table = ACPI_PTR(wdt87xx_acpi_id),
> > + .acpi_match_table = wdt87xx_acpi_id,
> > },
> > };
> > module_i2c_driver(wdt87xx_driver);
>
> Ditto.
>
> ...
>
> > --- a/drivers/net/ethernet/apm/xgene-v2/main.c
> > +++ b/drivers/net/ethernet/apm/xgene-v2/main.c
> > @@ -731,7 +731,7 @@ MODULE_DEVICE_TABLE(acpi, xge_acpi_match);
> > static struct platform_driver xge_driver = {
> > .driver = {
> > .name = "xgene-enet-v2",
> > - .acpi_match_table = ACPI_PTR(xge_acpi_match),
> > + .acpi_match_table = xge_acpi_match,
> > },
> > .probe = xge_probe,
> > .remove_new = xge_remove,
>
> Ditto. And remove forward declaration of the variable as well.
>
> ...
>
> > --- a/drivers/rtc/rtc-fsl-ftm-alarm.c
> > +++ b/drivers/rtc/rtc-fsl-ftm-alarm.c
> > @@ -320,7 +320,7 @@ static struct platform_driver ftm_rtc_driver = {
> > .driver = {
> > .name = "ftm-alarm",
> > .of_match_table = ftm_rtc_match,
> > - .acpi_match_table = ACPI_PTR(ftm_imx_acpi_ids),
> > + .acpi_match_table = ftm_imx_acpi_ids,
> > },
> > };
>
> Ditto.
>
> ...
>
> > .driver = {
> > .name = "pi433",
> > .owner = THIS_MODULE,
>
> Oh-oh.
>
> > - .of_match_table = of_match_ptr(pi433_dt_ids),
> > + .of_match_table = pi433_dt_ids,
> > },
>
> ...
>
> > --- a/drivers/tty/serial/amba-pl011.c
> > +++ b/drivers/tty/serial/amba-pl011.c
> > @@ -2948,7 +2948,7 @@ static const struct of_device_id sbsa_uart_of_match[] = {
> > };
> > MODULE_DEVICE_TABLE(of, sbsa_uart_of_match);
> >
> > -static const struct acpi_device_id __maybe_unused sbsa_uart_acpi_match[] = {
> > +static const struct acpi_device_id sbsa_uart_acpi_match[] = {
> > { "ARMH0011", 0 },
> > { "ARMHB000", 0 },
> > {},
> > @@ -2961,8 +2961,8 @@ static struct platform_driver arm_sbsa_uart_platform_driver = {
> > .driver = {
> > .name = "sbsa-uart",
> > .pm = &pl011_dev_pm_ops,
> > - .of_match_table = of_match_ptr(sbsa_uart_of_match),
> > - .acpi_match_table = ACPI_PTR(sbsa_uart_acpi_match),
> > + .of_match_table = sbsa_uart_of_match,
> > + .acpi_match_table = sbsa_uart_acpi_match,
> > .suppress_bind_attrs = IS_BUILTIN(CONFIG_SERIAL_AMBA_PL011),
> > },
> > };
>
> Ditto.
>
> ...
>
> As mentioned above, I haven't and won't look into of_match_ptr() cases, but you
> got the idea.
>
> For the above, if addressed as suggested,
> Reviewed-by: Andy Shevchenko <[email protected]>
>
> --
> With Best Regards,
> Andy Shevchenko
>
>

2024-04-03 13:31:35

by Andy Shevchenko

[permalink] [raw]

Subject: Re: [PATCH 33/34] drivers: remove incorrect of_match_ptr/ACPI_PTR annotations

On Wed, Apr 03, 2024 at 07:47:49AM -0500, Corey Minyard wrote:
> On Wed, Apr 03, 2024 at 12:30:44PM +0300, Andy Shevchenko wrote:
> > On Wed, Apr 03, 2024 at 10:06:51AM +0200, Arnd Bergmann wrote:
> > > From: Arnd Bergmann <[email protected]>

..

> > > 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.
> >
> > Can we split to three groups:
> > - Dropping ACPI_PTR()
> > - Dropping of_match_ptr() (which I won't review in depth, for example)
> > - Dropping both
> > ?
>
> Why?

Easy to review ACPI parts independently on the rest. I think I explained that
in above. Besides that some patches might require additional work (don't remember
if it is the case for _this_ patch).

--
With Best Regards,
Andy Shevchenko

2024-04-03 16:10:07

by Jarkko Sakkinen

[permalink] [raw]

Subject: Re: [PATCH 33/34] drivers: remove incorrect of_match_ptr/ACPI_PTR annotations

On Wed Apr 3, 2024 at 11:06 AM EEST, Arnd Bergmann wrote:
> diff --git a/drivers/char/tpm/tpm_ftpm_tee.c b/drivers/char/tpm/tpm_ftpm_tee.c
> index 2ea4882251cf..0c453f3f928d 100644
> --- a/drivers/char/tpm/tpm_ftpm_tee.c
> +++ b/drivers/char/tpm/tpm_ftpm_tee.c
> @@ -362,7 +362,7 @@ MODULE_DEVICE_TABLE(of, of_ftpm_tee_ids);
> static struct platform_driver ftpm_tee_plat_driver = {
> .driver = {
> .name = "ftpm-tee",
> - .of_match_table = of_match_ptr(of_ftpm_tee_ids),
> + .of_match_table = of_ftpm_tee_ids,
> },
> .shutdown = ftpm_plat_tee_shutdown,
> .probe = ftpm_plat_tee_probe,

For this portion:

Reviewed-by: Jarkko Sakkinen <[email protected]>

[can be included to possible new revisions if it stays same]

BR, Jarkko

2024-04-09 13:58:40

by Greg Kroah-Hartman

[permalink] [raw]

Subject: Re: [PATCH 33/34] drivers: remove incorrect of_match_ptr/ACPI_PTR annotations

2024-04-23 09:55:03

by Peter Rosin

[permalink] [raw]

Subject: Re: [PATCH 33/34] drivers: remove incorrect of_match_ptr/ACPI_PTR annotations

Hi!

2024-04-03 at 10:06, Arnd Bergmann wrote:
> From: Arnd Bergmann <[email protected]>
>
> 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 <[email protected]>
> ---
> 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 +-
> drivers/rtc/rtc-fsl-ftm-alarm.c | 2 +-
> drivers/scsi/hisi_sas/hisi_sas_v1_hw.c | 2 +-
> drivers/scsi/hisi_sas/hisi_sas_v2_hw.c | 2 +-
> drivers/staging/pi433/pi433_if.c | 2 +-
> drivers/tty/serial/amba-pl011.c | 6 +++---
> drivers/tty/serial/ma35d1_serial.c | 2 +-
> 20 files changed, 23 insertions(+), 25 deletions(-)

As far as I can tell, this triggers unconditional use of the
of_match_table, and the compiler will have a harder time dropping
that data. However, the wasted data is negligible for the parts
touching "my" drivers:

drivers/i2c/muxes/i2c-mux-ltc4306.c
drivers/i2c/muxes/i2c-mux-reg.c
drivers/mux/adg729a.c

Acked-by: Peter Rosin <[email protected]>

Cheers,
Peter

2024-04-23 14:53:38

by Xu Yilun

[permalink] [raw]

Subject: Re: [PATCH 33/34] drivers: remove incorrect of_match_ptr/ACPI_PTR annotations

> diff --git a/drivers/fpga/versal-fpga.c b/drivers/fpga/versal-fpga.c
> index 3710e8f01be2..e6189106c468 100644
> --- a/drivers/fpga/versal-fpga.c
> +++ b/drivers/fpga/versal-fpga.c
> @@ -69,7 +69,7 @@ static struct platform_driver versal_fpga_driver = {
> .probe = versal_fpga_probe,
> .driver = {
> .name = "versal_fpga_manager",
> - .of_match_table = of_match_ptr(versal_fpga_of_match),
> + .of_match_table = versal_fpga_of_match,

For this part

Acked-by: Xu Yilun <[email protected]>