Re: [PATCH v4 3/6] integrity: remove global variable from machine_keyring.c

[R Nageswara Sastry <rnsastry@linux.ibm.com>]

On 15/08/23 4:57 pm, Nayna Jain wrote:
> trust_mok variable is accessed within a single function locally.
> 
> Change trust_mok from global to local static variable.
> 
> Signed-off-by: Nayna Jain <nayna@linux.ibm.com>
> Reviewed-and-tested-by: Mimi Zohar <zohar@linux.ibm.com>
> Reviewed-by: Jarkko Sakkinen <jarkko@kernel.org>


Tested with trustedcadb, moduledb scenarios
Tested-by: Nageswara R Sastry <rnsastry@linux.ibm.com>

> ---
>   security/integrity/platform_certs/machine_keyring.c | 4 ++--
>   1 file changed, 2 insertions(+), 2 deletions(-)
> 
> diff --git a/security/integrity/platform_certs/machine_keyring.c b/security/integrity/platform_certs/machine_keyring.c
> index 389a6e7c9245..9482e16cb2ca 100644
> --- a/security/integrity/platform_certs/machine_keyring.c
> +++ b/security/integrity/platform_certs/machine_keyring.c
> @@ -8,8 +8,6 @@
>   #include <linux/efi.h>
>   #include "../integrity.h"
>   
> -static bool trust_mok;
> -
>   static __init int machine_keyring_init(void)
>   {
>   	int rc;
> @@ -65,9 +63,11 @@ static __init bool uefi_check_trust_mok_keys(void)
>   bool __init trust_moklist(void)
>   {
>   	static bool initialized;
> +	static bool trust_mok;
>   
>   	if (!initialized) {
>   		initialized = true;
> +		trust_mok = false;
>   
>   		if (uefi_check_trust_mok_keys())
>   			trust_mok = true;

-- 
Thanks and Regards
R.Nageswara Sastry