Re: [PATCH] staging: fbtft: fix unaligned access and buffer size when startbyte is used

[Andy Shevchenko]

On Thu, Jun 25, 2026 at 06:30:41PM +0800, suryasaimadhu wrote:
> When par->startbyte is non-zero, buf is advanced by one byte creating
> an unaligned pointer for 16-bit types (u16, __be16). Dereferencing this
> unaligned pointer can cause a kernel panic on strict-alignment
> architectures.
> 
> Fix by using put_unaligned() instead of direct pointer dereference.
> 
> Also fix incorrect buffer size calculation in fbtft_write_buf_dc() call:
>   len * (sizeof(data_type) + offset)  /* wrong: multiplies offset by len */
>   len * sizeof(data_type) + offset    /* correct: one startbyte +
>                                          len items */

Same comments as per your other patch contributions. Make it cleaner next time.
So it seem a v2 should be a mini-series with fixes for different
issues/drivers/et cetera.

-- 
With Best Regards,
Andy Shevchenko