From: Helge Deller Date: Thu, 9 Oct 2025 21:33:34 +0000 (+0200) Subject: parisc: Firmware: Fix returned path for PDC_MODULE_FIND on older machines X-Git-Url: https://www.infradead.org/git/?a=commitdiff_plain;h=44ac7f5c6d4c7fd62784bb2700245dbc4ac7e102;p=users%2Fjedix%2Flinux-maple.git parisc: Firmware: Fix returned path for PDC_MODULE_FIND on older machines Older machines (like my 715/64) don't correctly initialize the device path when returning from the PDC_MODULE_FIND firmware call. Work around that shortcoming by initializing the path with the known values. Signed-off-by: Helge Deller --- diff --git a/arch/parisc/kernel/firmware.c b/arch/parisc/kernel/firmware.c index c69f6d5946e9..042343492a28 100644 --- a/arch/parisc/kernel/firmware.c +++ b/arch/parisc/kernel/firmware.c @@ -464,7 +464,8 @@ int pdc_system_map_find_mods(struct pdc_system_map_mod_info *pdc_mod_info, unsigned long flags; spin_lock_irqsave(&pdc_lock, flags); - retval = mem_pdc_call(PDC_SYSTEM_MAP, PDC_FIND_MODULE, __pa(pdc_result), + memcpy(pdc_result2, mod_path, sizeof(*mod_path)); + retval = mem_pdc_call(PDC_SYSTEM_MAP, PDC_FIND_MODULE, __pa(pdc_result), __pa(pdc_result2), mod_index); convert_to_wide(pdc_result); memcpy(pdc_mod_info, pdc_result, sizeof(*pdc_mod_info));