| Message ID | 20240403080702.3509288-34-arnd@kernel.org |
|---|---|
| State | New |
| Headers | show |
| Series | None | expand |
On Wed, Apr 03, 2024 at 10:06:51AM +0200, 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> Acked-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Hi! 2024-04-03 at 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 +- > 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 <peda@axentia.se> Cheers, Peter
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, }, };