linux-kernel - Re: [PATCH v2] selftest/vm clarify error statement in gup

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Message-ID: <YkzDoBUAhydtvnR0@casper.infradead.org>
Date:   Tue, 5 Apr 2022 23:33:04 +0100
From:   Matthew Wilcox <willy@...radead.org>
To:     Sidhartha Kumar <sidhartha.kumar@...cle.com>
Cc:     shuah@...nel.org, akpm@...ux-foundation.org, linux-mm@...ck.org,
        linux-kselftest@...r.kernel.org, linux-kernel@...r.kernel.org
Subject: Re: [PATCH v2] selftest/vm clarify error statement in gup_test

On Tue, Apr 05, 2022 at 09:48:09PM +0000, Sidhartha Kumar wrote:
> -		perror("open");
> -		exit(1);
> +		switch (errno) {
> +		case EACCES:
> +			if (getuid())
> +				printf("Please run this test as root\n");

Shouldn't all these be fprintf(stderr, ...); ?