Messages in this thread Patch in this message | | | From | Christophe Leroy <> | Subject | [PATCH v2] powerpc/8xx: Fix do_mtspr_cpu6 build on older compilers | Date | Tue, 15 Mar 2016 14:07:49 +0100 (CET) |
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Some versions of GCC, reportedly before 4.8, fail with arch/powerpc/mm/8xx_mmu.c:139:2: error: memory input 1 is not directly addressable
Change the one-element array into a simple variable to avoid this.
Signed-off-by: Christophe Leroy <christophe.leroy@c-s.fr> Cc: Scott Wood <oss@buserror.net> --- Verified with GCC 4.4.4 and GCC 4.8.3
v2: compilation result is compliant with CPU6 ERRATA (using stw/lwz and not stwx/lwzx)
arch/powerpc/include/asm/reg_8xx.h | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/arch/powerpc/include/asm/reg_8xx.h b/arch/powerpc/include/asm/reg_8xx.h index d41412c..94d01f8 100644 --- a/arch/powerpc/include/asm/reg_8xx.h +++ b/arch/powerpc/include/asm/reg_8xx.h @@ -53,7 +53,7 @@ #ifdef CONFIG_8xx_CPU6 #define do_mtspr_cpu6(rn, rn_addr, v) \ do { \ - int _reg_cpu6 = rn_addr, _tmp_cpu6[1]; \ + int _reg_cpu6 = rn_addr, _tmp_cpu6; \ asm volatile("stw %0, %1;" \ "lwz %0, %1;" \ "mtspr " __stringify(rn) ",%2" : \ -- 2.1.0
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