linux-dev - Linux kernel development work

Age	Commit message (Collapse)	Author	Files	Lines
2018-06-06	treewide: Use struct_size() for kmalloc()-family	Kees Cook	1	-3/+3
	One of the more common cases of allocation size calculations is finding the size of a structure that has a zero-sized array at the end, along with memory for some number of elements for that array. For example: struct foo { int stuff; void entry[]; }; instance = kmalloc(sizeof(struct foo) + sizeof(void ) * count, GFP_KERNEL); Instead of leaving these open-coded and prone to type mistakes, we can now use the new struct_size() helper: instance = kmalloc(struct_size(instance, entry, count), GFP_KERNEL); This patch makes the changes for kmalloc()-family (and kvmalloc()-family) uses. It was done via automatic conversion with manual review for the "CHECKME" non-standard cases noted below, using the following Coccinelle script: // pkey_cache = kmalloc(sizeof pkey_cache + tprops->pkey_tbl_len // sizeof pkey_cache->table, GFP_KERNEL); @@ identifier alloc =~ "kmalloc\|kzalloc\|kvmalloc\|kvzalloc"; expression GFP; identifier VAR, ELEMENT; expression COUNT; @@ - alloc(sizeof(VAR) + COUNT * sizeof(VAR->ELEMENT), GFP) + alloc(struct_size(VAR, ELEMENT, COUNT), GFP) // mr = kzalloc(sizeof(mr) + m * sizeof(mr->map[0]), GFP_KERNEL); @@ identifier alloc =~ "kmalloc\|kzalloc\|kvmalloc\|kvzalloc"; expression GFP; identifier VAR, ELEMENT; expression COUNT; @@ - alloc(sizeof(VAR) + COUNT sizeof(VAR->ELEMENT[0]), GFP) + alloc(struct_size(VAR, ELEMENT, COUNT), GFP) // Same pattern, but can't trivially locate the trailing element name, // or variable name. @@ identifier alloc =~ "kmalloc\|kzalloc\|kvmalloc\|kvzalloc"; expression GFP; expression SOMETHING, COUNT, ELEMENT; @@ - alloc(sizeof(SOMETHING) + COUNT * sizeof(ELEMENT), GFP) + alloc(CHECKME_struct_size(&SOMETHING, ELEMENT, COUNT), GFP) Signed-off-by: Kees Cook <keescook@chromium.org>
2016-08-24	clk: clps711x: Migrate to clk_hw based OF and registration APIs	Stephen Boyd	1	-39/+39
	Now that we have clk_hw based provider APIs to register clks, we can get rid of struct clk pointers while registering clks in these drivers, allowing us to move closer to a clear split of consumer and provider clk APIs. Cc: Alexander Shiyan <shc_work@mail.ru> Signed-off-by: Stephen Boyd <stephen.boyd@linaro.org> Signed-off-by: Stephen Boyd <sboyd@codeaurora.org>
2016-07-06	clk: clps711x: Changing the compatibility string to match with the smallest supported chip	Alexander Shiyan	1	-1/+1
	This patch changes the compatibility string to match with the smallest supported chip (EP7209). Since the DT-support for this CPU is not yet announced, this change is safe. Signed-off-by: Alexander Shiyan <shc_work@mail.ru> Signed-off-by: Arnd Bergmann <arnd@arndb.de>
2016-04-15	clk: clps711x: Remove CLK_IS_ROOT	Stephen Boyd	1	-11/+8
	This flag is a no-op now. Remove usage of the flag. Cc: Alexander Shiyan <shc_work@mail.ru> Signed-off-by: Stephen Boyd <sboyd@codeaurora.org>
2015-07-20	clk: clps711x: Remove clk.h include	Stephen Boyd	1	-1/+0
	Clock provider drivers generally shouldn't include clk.h because it's the consumer API. Remove the include here because this is a provider driver. Cc: Alexander Shiyan <shc_work@mail.ru> Signed-off-by: Stephen Boyd <sboyd@codeaurora.org>
2014-07-28	clk: Add CLPS711X clk driver	Alexander Shiyan	1	-0/+192
	This adds the clock driver for Cirrus Logic CLPS711X series SoCs using common clock infrastructure. Designed primarily for migration CLPS711X subarch for multiplatform & DT, for this as the "OF" and "non-OF" calls implemented. Signed-off-by: Alexander Shiyan <shc_work@mail.ru> Acked-by: Arnd Bergmann <arnd@arndb.de> Signed-off-by: Mike Turquette <mturquette@linaro.org>