Re: [PATCH v2 2/4] firmware: qcom: uefisecapp: add support for R/O UEFI vars

[Johan Hovold]

On Mon, Jun 23, 2025 at 04:49:22PM +0200, Konrad Dybcio wrote:
> On 6/23/25 4:45 PM, Johan Hovold wrote:

> > It looks like the efivars implementation does not support read-only
> > efivars and this will lead to NULL pointer dereferences whenever you try
> > to write a variable.
> 
> There's efivar_supports_writes() that is used to set the EFIVAR_OPS_RDONLY
> flag which then sets SB_RDONLY on all efivarfs superblocks

Yep, but it doesn't help when attempting to store the RTC offset from
the kernel (since that does not use efivarfs).

Johan