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SubjectRe: [PATCH v7 2/2] KEYS: Avoid false positive ENOMEM error on key read
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On 2020/03/22 3:49, Waiman Long wrote:
> + do {

> + if (ret > key_data_len) {
> + if (unlikely(key_data))
> + __kvzfree(key_data, key_data_len);
> + key_data_len = ret;
> + continue; /* Allocate buffer */

Excuse me, but "continue;" inside "do { ... } while (0);" means "break;"
because "while (0)" is evaluated before continuing the loop.

----------
#include <stdio.h>

int main(int argc, char *argv[])
{
do {
printf("step 1\n");
if (1) {
printf("step 2\n");
continue;
}
printf("step 3\n");
} while (0);
printf("step 4\n");
return 0;
}
----------

----------
step 1
step 2
step 4
----------

> + }

> + } while (0);

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