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Riwen Lu 617bb6fc12 rtc: cmos: Evaluate century appropriate 
commit ff164ae39b upstream.

There's limiting the year to 2069. When setting the rtc year to 2070,
reading it returns 1970. Evaluate century starting from 19 to count the
correct year.

$ sudo date -s 20700106
Mon 06 Jan 2070 12:00:00 AM CST
$ sudo hwclock -w
$ sudo hwclock -r
1970-01-06 12:00:49.604968+08:00

Fixes: 2a4daadd4d ("rtc: cmos: ignore bogus century byte")

Signed-off-by: Riwen Lu <luriwen@kylinos.cn>
Acked-by: Eric Wong <e@80x24.org>
Reviewed-by: Mateusz Jończyk <mat.jonczyk@o2.pl>
Signed-off-by: Alexandre Belloni <alexandre.belloni@bootlin.com>
Link: https://lore.kernel.org/r/20220106084609.1223688-1-luriwen@kylinos.cn
Signed-off-by: Mateusz Jończyk <mat.jonczyk@o2.pl> # preparation for stable
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2022-02-08 18:15:29 +01:00
..
class.c
…
hctosys.c
rtc: hctosys: Add missing range error reporting
2018-11-21 09:26:03 +01:00
interface.c
rtc: ensure rtc_set_alarm fails when alarms are not supported
2018-08-03 07:55:13 +02:00
Kconfig
rtc: max8907: add missing select REGMAP_IRQ
2020-04-02 17:20:26 +02:00
Makefile
…
rtc-88pm80x.c
rtc: 88pm80x: fix unintended sign extension
2020-01-29 10:24:14 +01:00
rtc-88pm860x.c
rtc: 88pm860x: fix unintended sign extension
2020-01-29 10:24:14 +01:00
rtc-ab3100.c
…
rtc-ab8500.c
…
rtc-ab-b5ze-s3.c
…
rtc-abx80x.c
…
rtc-ac100.c
…
rtc-armada38x.c
…
rtc-as3722.c
…
rtc-asm9260.c
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rtc-at32ap700x.c
…
rtc-at91rm9200.c
…
rtc-at91rm9200.h
…
rtc-at91sam9.c
…
rtc-au1xxx.c
…
rtc-bfin.c
…
rtc-bq32k.c
…
rtc-bq4802.c
rtc: bq4802: add error handling for devm_ioremap
2018-09-26 08:36:39 +02:00
rtc-cmos.c
rtc: cmos: take rtc_lock while reading from CMOS
2022-01-27 08:47:31 +01:00
rtc-coh901331.c
…
rtc-core.h
…
rtc-da9052.c
…
rtc-da9055.c
…
rtc-da9063.c
rtc: da9063: set uie_unsupported when relevant
2019-05-08 07:19:10 +02:00
rtc-davinci.c
…
rtc-dev.c
…
rtc-digicolor.c
…
rtc-dm355evm.c
…
rtc-ds1216.c
…
rtc-ds1286.c
…
rtc-ds1302.c
…
rtc-ds1305.c
…
rtc-ds1307.c
…
rtc-ds1343.c
…
rtc-ds1347.c
…
rtc-ds1374.c
…
rtc-ds1390.c
…
rtc-ds1511.c
…
rtc-ds1553.c
…
rtc-ds1672.c
rtc: ds1672: fix unintended sign extension
2020-01-29 10:24:14 +01:00
rtc-ds1685.c
…
rtc-ds1742.c
…
rtc-ds2404.c
…
rtc-ds3232.c
…
rtc-efi-platform.c
…
rtc-efi.c
…
rtc-em3027.c
…
rtc-ep93xx.c
…
rtc-fm3130.c
…
rtc-gemini.c
…
rtc-generic.c
…
rtc-hid-sensor-time.c
…
rtc-hym8563.c
rtc: hym8563: Return -EINVAL if the time is known to be invalid
2020-02-14 16:31:09 -05:00
rtc-imxdi.c
…
rtc-isl1208.c
…
rtc-isl12022.c
…
rtc-jz4740.c
…
rtc-lib.c
rtc: Fix overflow when converting time64_t to rtc_time
2019-03-27 14:13:04 +09:00
rtc-lp8788.c
…
rtc-lpc24xx.c
…
rtc-lpc32xx.c
…
rtc-ls1x.c
…
rtc-m41t80.c
rtc: m41t80: Correct alarm month range with RTC reads
2019-01-09 16:16:45 +01:00
rtc-m41t93.c
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rtc-m41t94.c
…
rtc-m48t35.c
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rtc-m48t59.c
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rtc-m48t86.c
…
rtc-max6900.c
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rtc-max6902.c
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rtc-max6916.c
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rtc-max8907.c
…
rtc-max8925.c
…
rtc-max8997.c
rtc: max8997: Fix the returned value in case of error in 'max8997_rtc_read_alarm()'
2019-12-21 10:41:03 +01:00
rtc-max8998.c
…
rtc-max77686.c
rtc: max77686: Do not enforce (incorrect) interrupt trigger type
2021-07-28 09:14:25 +02:00
rtc-mc13xxx.c
…
rtc-mc146818-lib.c
rtc: cmos: Evaluate century appropriate
2022-02-08 18:15:29 +01:00
rtc-mcp795.c
…
rtc-moxart.c
…
rtc-mpc5121.c
…
rtc-mrst.c
…
rtc-msm6242.c
rtc: msm6242: Fix reading of 10-hour digit
2020-01-23 08:19:37 +01:00
rtc-mt6397.c
rtc: mt6397: fix alarm register overwrite
2020-01-23 08:19:34 +01:00
rtc-mv.c
…
rtc-mxc.c
…
rtc-nuc900.c
…
rtc-omap.c
rtc: omap: Use define directive for PIN_CONFIG_ACTIVE_HIGH
2020-04-24 07:58:58 +02:00
rtc-opal.c
rtc: opal: Fix OPAL RTC driver OPAL_BUSY loops
2018-05-01 15:13:09 -07:00
rtc-palmas.c
…
rtc-pcap.c
…
rtc-pcf2123.c
…
rtc-pcf2127.c
rtc: pcf2127: fix a kmemleak caused in pcf2127_i2c_gather_write
2018-12-01 09:44:20 +01:00
rtc-pcf8523.c
rtc: pcf8523: set xtal load capacitance from DT
2019-11-06 12:18:04 +01:00
rtc-pcf8563.c
rtc: pcf8563: Clear event flags and disable interrupts before requesting irq
2020-01-29 10:24:26 +01:00
rtc-pcf8583.c
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rtc-pcf50633.c
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rtc-pcf85063.c
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rtc-pic32.c
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rtc-pl030.c
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rtc-pl031.c
…
rtc-pm8xxx.c
rtc: pm8xxx: Fix issue in RTC write path
2020-04-24 07:59:09 +02:00
rtc-proc.c
rtc: fix snprintf() checking in is_rtc_hctosys()
2021-07-20 16:21:15 +02:00
rtc-ps3.c
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rtc-puv3.c
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rtc-pxa.c
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rtc-r9701.c
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rtc-rc5t583.c
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rtc-rk808.c
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rtc-rp5c01.c
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rtc-rs5c313.c
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rtc-rs5c348.c
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rtc-rs5c372.c
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rtc-rv3029c2.c
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rtc-rv8803.c
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rtc-rx4581.c
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rtc-rx6110.c
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rtc-rx8010.c
rtc: rx8010: don't modify the global rtc ops
2020-11-10 10:23:59 +01:00
rtc-rx8025.c
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rtc-rx8581.c
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rtc-s3c.c
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rtc-s3c.h
…
rtc-s5m.c
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rtc-s35390a.c
rtc: s35390a: Change buf's type to u8 in s35390a_init
2019-11-28 18:28:34 +01:00
rtc-sa1100.c
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rtc-sa1100.h
…
rtc-sh.c
rtc: sh: Fix invalid alarm warning for non-enabled alarm
2019-05-08 07:19:08 +02:00
rtc-sirfsoc.c
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rtc-snvs.c
rtc: snvs: Add timeouts to avoid kernel lockups
2018-12-21 14:11:40 +01:00
rtc-spear.c
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rtc-st-lpc.c
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rtc-starfire.c
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rtc-stk17ta8.c
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rtc-stmp3xxx.c
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rtc-sun4v.c
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rtc-sun6i.c
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rtc-sunxi.c
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rtc-sysfs.c
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rtc-tegra.c
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rtc-test.c
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rtc-tile.c
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rtc-tps6586x.c
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rtc-tps65910.c
rtc: tps65910: Correct driver module alias
2021-09-22 11:43:02 +02:00
rtc-tps80031.c
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rtc-twl.c
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rtc-tx4939.c
rtc: tx4939: avoid unintended sign extension on a 24 bit shift
2018-05-25 16:13:15 +02:00
rtc-v3020.c
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rtc-vr41xx.c
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rtc-vt8500.c
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rtc-wm831x.c
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rtc-wm8350.c
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rtc-x1205.c
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rtc-xgene.c
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rtc-zynqmp.c
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systohc.c
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