linux-kernel - Re: [PATCH v6 0/7] Powerpc/Watchpoint: Few important fixes

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Message-Id: <047a102b-9578-88cc-872f-06c2952fb74c@linux.ibm.com>
Date:   Thu, 7 Nov 2019 20:00:52 +0530
From:   Ravi Bangoria <ravi.bangoria@...ux.ibm.com>
To:     mpe@...erman.id.au
Cc:     Christophe Leroy <christophe.leroy@....fr>, mikey@...ling.org,
        npiggin@...il.com, benh@...nel.crashing.org, paulus@...ba.org,
        naveen.n.rao@...ux.vnet.ibm.com, linuxppc-dev@...ts.ozlabs.org,
        linux-kernel@...r.kernel.org,
        Ravi Bangoria <ravi.bangoria@...ux.ibm.com>
Subject: Re: [PATCH v6 0/7] Powerpc/Watchpoint: Few important fixes



On 10/29/19 7:31 PM, Christophe Leroy wrote:
> 
> 
> Le 29/10/2019 à 05:54, Ravi Bangoria a écrit :
>>
>>
>> On 10/17/19 3:01 PM, Ravi Bangoria wrote:
>>> v5: https://lists.ozlabs.org/pipermail/linuxppc-dev/2019-October/198069.html
>>>
>>> v5->v6:
>>>   - patch 6/7: mpe reported that the perf-hwbreak.c doesn't compile with older
>>>     gcc:
>>>          perf-hwbreak.c:182:2: error: dereferencing type-punned pointer will
>>>          break strict-aliasing rules [-Werror=strict-aliasing]
>>>              temp16 = *((__u16 *)target);
>>>              ^
>>>     Fixed that.
>>>
>>
>> Hi Christophe, Are you ok with the series wrt 8xx?
> 
> Yes it looks ok on my 885:
> 
> root@...ip:~# ./ptrace-hwbreak
> test: ptrace-hwbreak
> tags: git_version:v5.4-rc4-835-gb235e63aa9f0-dirty
> PTRACE_SET_DEBUGREG, WO, len: 1: Ok
> PTRACE_SET_DEBUGREG, WO, len: 2: Ok
> PTRACE_SET_DEBUGREG, WO, len: 4: Ok
> PTRACE_SET_DEBUGREG, WO, len: 8: Ok
> PTRACE_SET_DEBUGREG, RO, len: 1: Ok
> PTRACE_SET_DEBUGREG, RO, len: 2: Ok
> PTRACE_SET_DEBUGREG, RO, len: 4: Ok
> PTRACE_SET_DEBUGREG, RO, len: 8: Ok
> PTRACE_SET_DEBUGREG, RW, len: 1: Ok
> PTRACE_SET_DEBUGREG, RW, len: 2: Ok
> PTRACE_SET_DEBUGREG, RW, len: 4: Ok
> PTRACE_SET_DEBUGREG, RW, len: 8: Ok
> PPC_PTRACE_SETHWDEBUG, MODE_EXACT, WO, len: 1: Ok
> PPC_PTRACE_SETHWDEBUG, MODE_EXACT, RO, len: 1: Ok
> PPC_PTRACE_SETHWDEBUG, MODE_EXACT, RW, len: 1: Ok
> success: ptrace-hwbreak
> 
> Also ok on book3s/32:

mpe, Can you please pull the series.

Ravi