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From: Steven Rostedt <rostedt@goodmis.org>
To: Michael Sartain <mikesart@fastmail.com>
Cc: linux-kernel@vger.kernel.org
Subject: Re: [PATCH 3/5] trace-cmd: Add ULL suffix to MISSING_EVENTS since ints shouldn't be left shifted by 31
Date: Mon, 9 Oct 2017 18:27:51 -0400	[thread overview]
Message-ID: <20171009182751.5e76bd2e@gandalf.local.home> (raw)
In-Reply-To: <20170812173047.840-4-mikesart@fastmail.com>

On Sat, 12 Aug 2017 11:30:45 -0600
Michael Sartain <mikesart@fastmail.com> wrote:


> Signed-off-by: Michael Sartain <mikesart@fastmail.com>
> ---
>  kbuffer-parse.c | 4 ++--
>  1 file changed, 2 insertions(+), 2 deletions(-)
> 
> diff --git a/kbuffer-parse.c b/kbuffer-parse.c
> index 4e6e95e..dde642c 100644
> --- a/kbuffer-parse.c
> +++ b/kbuffer-parse.c
> @@ -24,8 +24,8 @@
>  
>  #include "kbuffer.h"
>  
> -#define MISSING_EVENTS (1 << 31)

Actually, why not? This could also be just UL, because it's fine to
shift 31, that would give us: 0x80000000  And that bit is all we care
for.

-- Steve

> -#define MISSING_STORED (1 << 30)
> +#define MISSING_EVENTS (1ULL << 31)
> +#define MISSING_STORED (1ULL << 30)
>  
>  #define COMMIT_MASK ((1 << 27) - 1)
>  

  reply	other threads:[~2017-10-09 22:27 UTC|newest]

Thread overview: 14+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2017-08-12 17:30 [PATCH 0/5] trace-cmd: Fixes for four small bugs plus minor cleanup Michael Sartain
2017-08-12 17:30 ` [PATCH 1/5] trace-cmd: Fix incorrect malloc size arg: *item instead of item Michael Sartain
2017-08-12 17:30 ` [PATCH 2/5] trace-cmd: Fix NULL pointer being passed to memcpy Michael Sartain
2017-10-09 22:24   ` Steven Rostedt
2017-10-09 22:27     ` Michael Sartain
2017-10-09 22:33       ` Steven Rostedt
2017-08-12 17:30 ` [PATCH 3/5] trace-cmd: Add ULL suffix to MISSING_EVENTS since ints shouldn't be left shifted by 31 Michael Sartain
2017-10-09 22:27   ` Steven Rostedt [this message]
2017-08-12 17:30 ` [PATCH 4/5] trace-cmd: Use unsigned values in Hsieh's trace_hash fast hash function Michael Sartain
2017-10-09 22:30   ` Steven Rostedt
2017-08-12 17:30 ` [PATCH 5/5] trace-cmd: Remove unused view_width variable Michael Sartain
2017-10-09 22:32   ` Steven Rostedt
2017-10-09 22:13 ` [PATCH 0/5] trace-cmd: Fixes for four small bugs plus minor cleanup Michael Sartain
2017-10-09 22:21   ` Steven Rostedt

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