Re: [PATCH 01/11] tty/sysrq: alpha: export and use __sysrq_get_key_op()

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On Wed, May 13, 2020 at 10:43:41PM +0100, Emil Velikov wrote:
> Export a pointer to the sysrq_get_key_op(). This way we can cleanly
> unregister it, instead of the current solutions of modifuing it inplace.
> 
> Since __sysrq_get_key_op() is no longer used externally, let's make it
> a static function.
> 
> This patch will allow us to limit access to each and every sysrq op and
> constify the sysrq handling.
> 

This patch results in:

Building alpha:defconfig ... failed
--------------
Error log:
<stdin>:1511:2: warning: #warning syscall clone3 not implemented [-Wcpp]
arch/alpha/kernel/setup.c:435:13: error: initialization of 'void (*)(int)' from incompatible pointer type 'void (*)(void)'

... which does make me wonder if it was even build tested.

Guenter

---
# bad: [af7b4801030c07637840191c69eb666917e4135d] Merge git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net
# good: [3b69e8b4571125bec1f77f886174fe6cab6b9d75] Merge tag 'sh-for-5.8' of git://git.libc.org/linux-sh
git bisect start 'HEAD' '3b69e8b45711'
# good: [77f55d1305c11fb729b88f2c3f7881ba0831fa6f] staging: rtl8723bs: Use common packet header constants
git bisect good 77f55d1305c11fb729b88f2c3f7881ba0831fa6f
# bad: [f558b8364e19f9222e7976c64e9367f66bab02cc] Merge tag 'driver-core-5.8-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/driver-core
git bisect bad f558b8364e19f9222e7976c64e9367f66bab02cc
# good: [ca681aa49200422a4144ee376a2079a9f717bf11] Merge tag 'usb-for-v5.8' of git://git.kernel.org/pub/scm/linux/kernel/git/balbi/usb into usb-next
git bisect good ca681aa49200422a4144ee376a2079a9f717bf11
# bad: [a1b44ea340b21c99b34c93acad233da727cb88ba] tty: serial: qcom_geni_serial: Add 51.2MHz frequency support
git bisect bad a1b44ea340b21c99b34c93acad233da727cb88ba
# good: [e0a851fe6b9b619527bd928aa93caaddd003f70c] serial: 8250: Avoid error message on reprobe
git bisect good e0a851fe6b9b619527bd928aa93caaddd003f70c
# bad: [57626ff1c9135211b92dfbea1923333c7b6dd12c] tty: n_gsm: Remove unnecessary test in gsm_print_packet()
git bisect bad 57626ff1c9135211b92dfbea1923333c7b6dd12c
# bad: [675cacf11462f112ab13d57e1163082161ef8708] MIPS: constify sysrq_key_op
git bisect bad 675cacf11462f112ab13d57e1163082161ef8708
# bad: [0f1c9688a194d22bb81953bd85bd18b0115fd17f] tty/sysrq: alpha: export and use __sysrq_get_key_op()
git bisect bad 0f1c9688a194d22bb81953bd85bd18b0115fd17f
# good: [7b668c064ec33f3d687c3a413d05e355172e6c92] serial: 8250: Fix max baud limit in generic 8250 port
git bisect good 7b668c064ec33f3d687c3a413d05e355172e6c92
# good: [beca62c4212ade1516a526784adf7f7d99c7f3d9] tty: mxser: make mxser_change_speed() return void
git bisect good beca62c4212ade1516a526784adf7f7d99c7f3d9
# first bad commit: [0f1c9688a194d22bb81953bd85bd18b0115fd17f] tty/sysrq: alpha: export and use __sysrq_get_key_op()
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