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| author | Linus Torvalds <torvalds@linux-foundation.org> | 2026-08-24 08:46:03 -0700 |
|---|---|---|
| committer | Linus Torvalds <torvalds@linux-foundation.org> | 2026-08-24 08:46:03 -0700 |
| commit | cf9610f9116d55c5a66ef9f1faecacabd93a9322 (patch) | |
| tree | 757a3d280760c654767631cab5ad8af2d86d1848 /fs/isofs/util.c | |
| download | linux-stable-cf9610f9116d55c5a66ef9f1faecacabd93a9322.tar.gz linux-stable-cf9610f9116d55c5a66ef9f1faecacabd93a9322.zip | |
Merge tag 'pinctrl-v7.3-1' of git://git.kernel.org/pub/scm/linux/kernel/git/linusw/linux-pinctrlgrafted
Pull pin control updates from Linus Walleij:
"Core changes:
- Use the non-blocking mux_state_try_select() in the generic MUX pin
control back-end
- Free pin maps on pinctrl_generic_to_map() failure in the core
helpers
New hardware pin control:
- Qualcomm Maili TLMM SoC, PMG1110 PMIC, and Eliza LPASS LPI TLMM SoC
(this is for the low power audio, LPASS = Low Power Audio SubSystem
portions)
- Upboard support on top of the Intel pin controller
- Apple T6030 and T6031 support (just compatible strings)
- Samsung Exynos 8855 SoC
- Mediatek MT6858 SoC
- Rockchip RK3308B and RV1106 SoCs
- Airoha EN7523 and AN7563 SoCs
Improvements:
- Qualcomm TLMM GPIOs are unconditionally marked as wakeup capable
- Qualcomm improvements on top of the Qualcomm PDC (power domain
controller) irqchip improvements from tglx:s tree
- Qualcomm IPQ806x and IPQ9650 non-urgent pin grop fixups
- The NPCM8xx driver has been put into shape fixing many pin and
group definitions
- Some non-urgent Tegra 264 pin assignments are fixed up
- Some non-urgent fixups to Airoha AN7581 and AN7583 registers and
pin assignments, missing features etc"
* tag 'pinctrl-v7.3-1' of git://git.kernel.org/pub/scm/linux/kernel/git/linusw/linux-pinctrl: (130 commits)
dt-bindings: pinctrl: Convert TI DA850 pupd to DT schema
pinctrl: meson: sync some modify from A4
pinctrl: meson: a4: Add input enable pin configuration
pinctrl: realtek: rtd1625: remove unused group name spdif_sel
pinctrl: realtek: rtd1625: fix base_bit for VE4 GPIO 13
dt-bindings: pinctrl: microchip,pic32mzda-pinctrl: Convert to DT schema
Revert "Merge branch 'ib-rsk7204' into devel"
pinctrl: rockchip: Add RV1106 pinctrl support
dt-bindings: pinctrl: rockchip: Add RV1106 compatible
pinctrl: rockchip: Decode drive strength in the get function
pinctrl: fix PINCTRL_GENERIC_MUX not always being selectable
pinctrl: airoha: add support of an7563 SoC
dt-bindings: pinctrl: airoha: add support of an7563 pin controller
pinctrl: airoha: try to find chip scu node by phandle first
pinctrl: airoha: add support of en7523 SoC
dt-bindings: pinctrl: airoha: add support of en7523 pin controller
pinctrl: airoha: an7583: add support for olt pinmux
pinctrl: airoha: an7583: add support for pon_alt pinmux
pinctrl: airoha: an7583: add support for npu_uart pinmux
dt-bindings: pinctrl: airoha: an7583: add missed features
...
Diffstat (limited to 'fs/isofs/util.c')
| -rw-r--r-- | fs/isofs/util.c | 86 |
1 files changed, 86 insertions, 0 deletions
diff --git a/fs/isofs/util.c b/fs/isofs/util.c new file mode 100644 index 000000000..42f479da0 --- /dev/null +++ b/fs/isofs/util.c @@ -0,0 +1,86 @@ +// SPDX-License-Identifier: GPL-2.0 +/* + * linux/fs/isofs/util.c + */ + +#include <linux/time.h> +#include "isofs.h" + +/* + * We have to convert from a MM/DD/YY format to the Unix ctime format. + * We have to take into account leap years and all of that good stuff. + * Unfortunately, the kernel does not have the information on hand to + * take into account daylight savings time, but it shouldn't matter. + * The time stored should be localtime (with or without DST in effect), + * and the timezone offset should hold the offset required to get back + * to GMT. Thus we should always be correct. + */ + +struct timespec64 iso_date(u8 *p, int flags) +{ + int year, month, day, hour, minute, second, tz; + struct timespec64 ts; + + if (flags & ISO_DATE_LONG_FORM) { + year = (p[0] - '0') * 1000 + + (p[1] - '0') * 100 + + (p[2] - '0') * 10 + + (p[3] - '0') - 1900; + month = ((p[4] - '0') * 10 + (p[5] - '0')); + day = ((p[6] - '0') * 10 + (p[7] - '0')); + hour = ((p[8] - '0') * 10 + (p[9] - '0')); + minute = ((p[10] - '0') * 10 + (p[11] - '0')); + second = ((p[12] - '0') * 10 + (p[13] - '0')); + ts.tv_nsec = ((p[14] - '0') * 10 + (p[15] - '0')) * 10000000; + tz = p[16]; + } else { + year = p[0]; + month = p[1]; + day = p[2]; + hour = p[3]; + minute = p[4]; + second = p[5]; + ts.tv_nsec = 0; + /* High sierra has no time zone */ + tz = flags & ISO_DATE_HIGH_SIERRA ? 0 : p[6]; + } + + if (year < 0) { + ts.tv_sec = 0; + } else { + ts.tv_sec = mktime64(year+1900, month, day, hour, minute, second); + + /* sign extend */ + if (tz & 0x80) + tz |= (-1 << 8); + + /* + * The timezone offset is unreliable on some disks, + * so we make a sanity check. In no case is it ever + * more than 13 hours from GMT, which is 52*15min. + * The time is always stored in localtime with the + * timezone offset being what get added to GMT to + * get to localtime. Thus we need to subtract the offset + * to get to true GMT, which is what we store the time + * as internally. On the local system, the user may set + * their timezone any way they wish, of course, so GMT + * gets converted back to localtime on the receiving + * system. + * + * NOTE: mkisofs in versions prior to mkisofs-1.10 had + * the sign wrong on the timezone offset. This has now + * been corrected there too, but if you are getting screwy + * results this may be the explanation. If enough people + * complain, a user configuration option could be added + * to add the timezone offset in with the wrong sign + * for 'compatibility' with older discs, but I cannot see how + * it will matter that much. + * + * Thanks to kuhlmav@elec.canterbury.ac.nz (Volker Kuhlmann) + * for pointing out the sign error. + */ + if (-52 <= tz && tz <= 52) + ts.tv_sec -= tz * 15 * 60; + } + return ts; +} |
