mirror of https://github.com/torvalds/linux.git
5b9192c2c0
Add a comment to ptp_ocp_tty_show() explaining that the sysfs output intentionally does not include a trailing newline. This is required for backward compatibility with existing userspace software that reads the sysfs attribute and uses the value directly as a device path. A previous attempt to add a newline to align with common kernel conventions broke userspace applications that were opening device paths like "/dev/ttyS4\n" instead of "/dev/ttyS4", resulting in ENOENT errors. This comment prevents future attempts to "fix" this behavior, which would break existing userspace applications. Link: https://lore.kernel.org/netdev/20251030124519.1828058-1-zhongqiu.han@oss.qualcomm.com/ Link: https://lore.kernel.org/netdev/aef3b850-5f38-4c28-a018-3b0006dc2f08@linux.dev/ Suggested-by: Jakub Kicinski <kuba@kernel.org> Signed-off-by: Zhongqiu Han <zhongqiu.han@oss.qualcomm.com> Reviewed-by: Vadim Fedorenko <vadim.fedorenko@linux.dev> Link: https://patch.msgid.link/20251107074533.416048-1-zhongqiu.han@oss.qualcomm.com Signed-off-by: Jakub Kicinski <kuba@kernel.org> |
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| .. | ||
| Kconfig | ||
| Makefile | ||
| ptp_chardev.c | ||
| ptp_clock.c | ||
| ptp_clockmatrix.c | ||
| ptp_clockmatrix.h | ||
| ptp_dfl_tod.c | ||
| ptp_dte.c | ||
| ptp_fc3.c | ||
| ptp_fc3.h | ||
| ptp_idt82p33.c | ||
| ptp_idt82p33.h | ||
| ptp_ines.c | ||
| ptp_kvm_arm.c | ||
| ptp_kvm_common.c | ||
| ptp_kvm_x86.c | ||
| ptp_mock.c | ||
| ptp_netc.c | ||
| ptp_ocp.c | ||
| ptp_pch.c | ||
| ptp_private.h | ||
| ptp_qoriq.c | ||
| ptp_s390.c | ||
| ptp_sysfs.c | ||
| ptp_vclock.c | ||
| ptp_vmclock.c | ||
| ptp_vmw.c | ||