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SubjectRe: [PATCH] setlocalversion: fix error detectition of kernel git repository
Date

Hello Xufeng,

why do you think redirecting *all* output to /dev/null is the right
thing todo?

And which problem does it exactly fix?

Do you see that there is a difference between a "return value"
(i.e. exit code) and the output (in this case stdout) of a program?

Best,

Nico

xufeng <xufwang@163.com> writes:

> This patch fixed the error using 'git rev-parse --show-cdup' to check
> that git is used as SCM to track the current directory. The return
> value of this command is not null string when the .git directory is
> not in kernel topdir.
>
> Signed-off-by: Xufeng Wang <xufwang@163.com>
> ---
> scripts/setlocalversion | 2 +-
> 1 file changed, 1 insertion(+), 1 deletion(-)
>
> diff --git a/scripts/setlocalversion b/scripts/setlocalversion
> index 966dd39..7966e39 100755
> --- a/scripts/setlocalversion
> +++ b/scripts/setlocalversion
> @@ -43,7 +43,7 @@ scm_version()
> fi
>
> # Check for git and a git repo.
> -if test -z "$(git rev-parse --show-cdup 2>/dev/null)" &&
> +if test -z "$(git rev-parse --show-cdup &>/dev/null)" &&
> head=`git rev-parse --verify --short HEAD 2>/dev/null`; then
>
> # If we are at a tagged commit (like "v2.6.30-rc6"), we ignore


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