identifier "asm" is undefined

[sm-github-work]

Describe the bug
My RTOS uses asm inline functions. Any OS call in my code that uses these functions generates the following issue in VSCode: identifier "asm" is undefined.

To Reproduce

1. Include any assembler function, see the EWARMDeveloperGuide for examples, such as:
   int matrix[M][N];
   void MatrixPreloadRow(int row) { asm volatile ("pld [%0]" : : "r" (&matrix[row][0])); }

2. See issue for each call: identifier "asm" is undefined.

Expected behavior
I would expect no issue for asm calls.

Screenshots

Additional context
I also have an asm.s file that does not have any context highlighting. If IAR doesn't provide this, do they have a preferred extension?