[xen staging] arm/ffa: deviate violation of MISRA C Rule 20.12

[patchbot@xxxxxxx]

commit 195d7541708918cf0b77ef2afc3d065b16f061a1
Author:     Dmytro Prokopchuk1 <dmytro_prokopchuk1@xxxxxxxx>
AuthorDate: Fri Mar 13 09:47:38 2026 +0000
Commit:     Andrew Cooper <andrew.cooper3@xxxxxxxxxx>
CommitDate: Fri Mar 13 17:18:04 2026 +0000

    arm/ffa: deviate violation of MISRA C Rule 20.12
    
    MISRA C Rule 20.12 states: "A macro parameter used as an operand to
    the # or ## operators, which is itself subject to further macro replacement,
    shall only be used as an operand to these operators".
    
    In this case the 'FFA_*' macros are used both as a regular macro argument 
and
    as an operand for '#' stringification in the expansion of 'FW_ABI()'.
    This is deviated using a SAF-x-safe comment.
    
    No functional changes.
    
    Signed-off-by: Dmytro Prokopchuk <dmytro_prokopchuk1@xxxxxxxx>
    Reviewed-by: Bertrand Marquis <bertrand.marquis@xxxxxxx>
---
 xen/arch/arm/tee/ffa.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/xen/arch/arm/tee/ffa.c b/xen/arch/arm/tee/ffa.c
index aa43ae2595..d4a77206c6 100644
--- a/xen/arch/arm/tee/ffa.c
+++ b/xen/arch/arm/tee/ffa.c
@@ -80,6 +80,7 @@ struct ffa_fw_abi {
     const char *name;
 };
 
+/* SAF-6-safe Rule 20.12 expansion of macro FFA_* with FW_ABI */
 #define FW_ABI(abi) {abi,#abi}
 
 /* List of ABI we use from the firmware */
--
generated by git-patchbot for /home/xen/git/xen.git#staging