Benjamin Bara 08038069c2 i2c: core: Fix atomic xfer check for non-preempt config ... commit a3368e1186 upstream. Since commit aa49c90894 ("i2c: core: Run atomic i2c xfer when !preemptible"), the whole reboot/power off sequence on non-preempt kernels is using atomic i2c xfer, as !preemptible() always results to 1. During device_shutdown(), the i2c might be used a lot and not all busses have implemented an atomic xfer handler. This results in a lot of avoidable noise, like: [ 12.687169] No atomic I2C transfer handler for 'i2c-0' [ 12.692313] WARNING: CPU: 6 PID: 275 at drivers/i2c/i2c-core.h:40 i2c_smbus_xfer+0x100/0x118 ... Fix this by allowing non-atomic xfer when the interrupts are enabled, as it was before. Link: https://lore.kernel.org/r/20231222230106.73f030a5@yea Link: https://lore.kernel.org/r/20240102150350.3180741-1-mwalle@kernel.org Link: https://lore.kernel.org/linux-i2c/13271b9b-4132-46ef-abf8-2c311967bb46@mailbox.org/ Fixes: aa49c90894 ("i2c: core: Run atomic i2c xfer when !preemptible") Cc: stable@vger.kernel.org # v5.2+ Signed-off-by: Benjamin Bara <benjamin.bara@skidata.com> Tested-by: Michael Walle <mwalle@kernel.org> Tested-by: Tor Vic <torvic9@mailbox.org> [wsa: removed a comment which needs more work, code is ok] Signed-off-by: Wolfram Sang <wsa@kernel.org> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>		2024-01-10 17:10:35 +01:00
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algos	…
busses	i2c: aspeed: Handle the coalesced stop conditions with the start conditions.	2024-01-01 12:38:59 +00:00
muxes	i2c: muxes: i2c-demux-pinctrl: Use of_get_i2c_adapter_by_node()	2023-11-02 09:35:30 +01:00
Kconfig	…
Makefile	…
i2c-boardinfo.c	…
i2c-core-acpi.c	More ACPI updates for 6.1-rc1	2022-10-10 13:28:06 -07:00
i2c-core-base.c	i2c: fix memleak in i2c_new_client_device()	2023-11-28 17:07:01 +00:00
i2c-core-of.c	treewide: Fix probing of devices in DT overlays	2023-09-13 09:43:05 +02:00
i2c-core-slave.c	…
i2c-core-smbus.c	…
i2c-core.h	i2c: core: Fix atomic xfer check for non-preempt config	2024-01-10 17:10:35 +01:00
i2c-dev.c	i2c: dev: copy userspace array safely	2023-11-28 17:07:02 +00:00
i2c-mux.c	i2c: mux: Avoid potential false error message in i2c_mux_add_adapter	2023-10-25 12:03:09 +02:00
i2c-slave-eeprom.c	i2c: Make remove callback return void	2022-08-16 12:46:26 +02:00
i2c-slave-testunit.c	i2c: Make remove callback return void	2022-08-16 12:46:26 +02:00
i2c-smbus.c	i2c: Make remove callback return void	2022-08-16 12:46:26 +02:00
i2c-stub.c	…